MODEL BXR LESpring-actuated brake and P.W.M. controller

'14.10-.5-MP-BLE(en)-001A

03

12

■ GROUP COMPANIES

■ DISTRIBUTORS

■ TECHNOLOGY PARTNERS

AUSTRALIANAISMITH ENGINEERING & MANUFACTURING CO. PTY. LTD.149 HEIDELBERG ROAD, NORTHCOTE 3070,VICTORIA, AUSTRALIATEL:61-3-9489-9811 FAX:61-3-9482-1474

04 CHINAROSTA MP (SHANGHAI) CO.,LTD.ROOM 201A,BULDING 1 NO.518 SHENWANG ROAD, MINHANG DISTRICT,SHANGHAI CHINATEL:86-21-5428-9775 FAX:86-21-5428-9852

CHINACENTA MP (SHANGHAI) CO.,LTD.D3-1F,NO.479 CHUNDONG ROAD,XINGZHUANG INDUSTRY PARK,SHANGHAI 201108,CHINATEL:86-21-54831381 FAX:86-21-54831380

57 U.S.A.LOVEJOY, INC.2655 WISCONSIN AVENUE, DOWNERS GROVE, ILLINOIS 60515, U.S.A.TEL:1-630-852-0500 FAX:1-630-852-2120

13 AUSTRALIAR. R. FISHER & CO., LTD.UNIT 23 BLOCK E., CARINGBAHBUSINESS PARK 1-3, ENDEAVOUR ROAD, CARINGBAH NSW 2229, AUSTRALIATEL:61-2-9540-4533 FAX:61-2-9540-4079

15 CHINANANJING ANSEN M & E EQUIPMENT CO., LTD.WEST BLOCK, 2/F , NO.1 BUILDING, SCIENCE & TECHNOLOGY GARDEN, No.12 DINGHUAIMEN, NANJING.TEL:86-25-8375-2618 FAX:86-25-8375-2698

14 BRAZILKAISHIN INDUSTRIA E COMERCIO LTDA.RUA ANTONIO FIDELIS, 398-LAPA DEBAIXO CEP:05068-001-SAO PAULO-SP-BRAZILTEL:55-11-3617-3141 FAX:55-11-3617-3142

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01 CHINAMIKI PULLEY(TIANJIN) CO., LTD.NO.2 LIAO HE BEI DAO, BEI CHEN HIGH-TECHPARK TIANJIN, P.C. 300410, CHINATEL:86-22-2630-3111 FAX:86-22-2672-3111

17CHINATIANJIN ACE PILLAR CO., LTD.NO.3 WEST 10 AVENUE, TIANJIN AIRPORTINDUSTRIAL PARK, TIANJIN CHINA, 300308TEL:86-22-2355-6000 FAX:86-22-2355-6368

47GERMANYCENTA ANTRIEBE KIRSCHEY GmbHBERGISCHE STRASSE 7 42781 HAAN, GERMANYTEL:49-2129-9120 FAX:49-2129-2790

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07HONG KONGMIKI PULLEY(HONG KONG)CO., LTD.5TH FL., CCT TELECOM BLDG., 11WO SHING STREET, FO TAN, HONG KONGTEL:852-2947-7508 FAX:852-2947-7518

19HONG KONGON GEAR E & M PRODUCTS LTD.RM 506-509 5/F., CCT TELECOM BUILDING, 11 WOSHING STREET, FO TAN, HONG KONGTEL:852-2690-3320 FAX:852-2690-2326

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INDIAMIKI PULLEY (INDIA) PVT. LTD.PLOT B-29/2, MIDC, TALOJA-410 208, DIST : RAIGAD,NAVI MUMBAI, INDIATEL:91-22-2741-1922 FAX:91-22-2741-1933

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INDONESIAPD. CENTRAL TEHNIKJL GUNUNG SAHARI, KOMP. MARINA MANGGA DUA BLOCK F NO.1 JAKARTA 14420 - INDONESIATEL:62-21-645-5152 FAX:62-21-640-3975

02 CHINAMIKI PULLEY (TIANJIN) CO., LTD. SHANGHAI BRANCHRM 2603, 26/F, BUILDING A, FAR EAST INTERNATIONAL PLAZA, NO.319 XIAN XIA RD., SHANGHAITEL:86-21-6249-6161 FAX:86-21-6249-9397

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CZECH REPUBLICCOROLL s.r.o.HOSTOVSKEHO 525, 549 31 HRONOV. CZECH REPUBLICTEL:420-491-483-805 FAX:420-491-483-805

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INDONESIAPT. HIMALAYA EVEREST JAYA.JL. DAAN MOGOT KM. 10 NO.151 KEDAUNG KALI PESING POGLAR JAKARTA 11710, INDONESIATEL:62-21-544-8965 FAX:62-21-619-4658

ISRAELDOR DRIVE SYSTEM JAYA.KIBBUTS EINAT 48805, P.O.B. 6, ISRAELTEL:972-3-900 7595 FAX:972-3-900 7599

23ITALY BIANCHI CUSCINETTI S. p. A.VIA G. ZURETTI, 100 - 20125 MILANO, ITALYTEL:39-0267861 FAX:39-026701062

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ITALY MOTOVARIO S. p. A.VIA QUATTROPASSI, 1/3-41043 FORMIGINE (MO), ITALYTEL:39-059579711 FAX:39-059579710

25

MALAYSIAHIMALAYA POWER TRANSMISSION SDN. BHD.GROUND & 1ST FLOOR, BINTULU-MINI ROOD, SUBLOT 4, LOT 1175, BLOCK 32, KEMENA LAND DISTRICT, 97000BINTULU, SARAWAK, P.O.BOX 3052, 97014, MALAYSIA,TEL:60-86-311930 FAX:60-86-311039

26MALAYSIASING HUAT HARDWARE & MACHINERY(M) SDN BHDLOT 4 JALAN SS 13/4 SUBANG JAYA IND ESTATE, SUBANG JAYA, 47500 PETALING JAYA, SELANGOR, MALAYSIATEL:60-3-5633-7655 FAX:60-3-5633-9700

NETHERLANDSAMMERTECH B. V.ACHTERDIJK 15; 5705 CB HELMOND, THE NETHERLANDSTEL:31-492 594 300 FAX:31-492 594 349

27NEW ZEALANDR. R. FISHER & CO., LTD.13 SPRING STREET, PAPATOETOE, AUCKLAND, NEW ZEALANDTEL:64-9278-4059 FAX:64-9279-8286

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31 SINGAPORECENTA TRANSMISSIONS FAR EAST PTE., LTD.No 76 TUAS SOUTH AVENUE 2 SINGAPORE 637519TEL:65-6316-2508 FAX:65-6316-2509

SINGAPOREACE PILLAR(S) PTE LTD.NO.1, KAKI BUKIT AVE 3, KB-1, #06-02, SINGAPORE 416 087TEL:65-6748-6586 FAX:65-6748-5613

32 SINGAPORESEIMITSU FACTORY AUTOMATION (S) PTE LTDNO. 240 MACPHERSON ROAD, #04-06,PINES INDUSTRIAL BUILDING, SINGAPORE 348574TEL:65-6747-8816 FAX:65-6747-8827

SINGAPORESING HUAT HARDWARE & MACHINERY PTE., LTD.327-329, JALAN BESAR 208981 SINGAPORETEL:65-6293-6861 FAX:65-6293-8516

33

SOUTH KOREAMIKI PULLEY (KOREA) CO., LTD.302-406 IT BUCHEON TECHNO-PARK SSANGYOUNG 3CHA 36-1 SAMJEONG-DONG(397 SEOKCHEON-RO)OJEONG-GU BUCHEON-SI KYEONGGI-DO SOUTH KOREA 421-742TEL:82-32-624-1750 FAX:82-32-624-1752

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SOUTH KOREAK-MECHATRO. CO., LTD.BL.436-5, JEUNGGEO-RI, HYANGNAM-EUP, HWASEONG-SI, GYEONGG-DO, 445-921, KOREATEL:82-31-366-3671 FAX:82-31-366-3673

34 SOUTH KOREAWON TECHBL.758-8, YEHYEON-RI, GUJI-MYEON, DALSEONG-GUN, TAEGU CITY, KOREA 703-830TEL:82-53-557-9111 FAX:82-53-557-9115

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SPAINRODAMIENTOS FEYC S.A.C/PROGRES, 127-133 POL. IND. ALMEDA08940 CORNELLA DE. LLOBREGATTEL:34 934 740 464 FAX:34 934 745 893

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28 POLANDADMECHKARAKOWASKA 50 STREET, BALICE, 32-083, POLANDTEL:48 12 630-47-62 FAX:48 12 630-47-00

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56 U.S.A.HELICAL PRODUCTS COMPANY, INC.901 WEST McCOY LANE, P.O.BOX 1069, SANTA MARIA, CALIFORNIA 93456-1069, U.S.A.TEL:1-805-928-3851 FAX:1-805-928-2369

42 U.S.A.BRAKECLUTCH,LLC48 VISTA Dr. FLANDERS, NEW JERSEY 07836, U.S.A.TEL:1-973-584-4539 FAX:1-973-584-2371

55 U.S.A.CENTA CORPORATION2570 BEVERLY DRIVE #128 AURORA, ILLINOIS 60502-8588 U.S.A.TEL:1-630-236-3500 FAX:1-630-236-3565

41 U.KHMK TECHNICAL SERVICES LTD.KAPPA HOUSE HATTER STREET CONGLETON CHESHIRE CW12 1QJ UNITED KINGDOMTEL:44 1260 279411 FAX:44 1260 281022

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54

TAIWANACE PILLAR CO., LTD.2F NO.7, LANE 83 SEC 1, KUANG-FU RD., SAN-CHUNG CITY, TAIPEI HSIEN 241, TAIWANTEL:886-2-2995-8400 FAX:886-2-2995-3466

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TAIWAN MIKI PULLEY(TAIWAN)CO., LTD.2F, NO.46, KEYA RD., DAYA DISTRICT, TAICHUNG CITY, 428, TAIWAN

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THAILANDNAM SAE INTERNATIONAL TRADING CO., LTD.32-34, SOI SRITHAMMATIRAD, CHAROENKRUNG ROAD, POMPRAB,BANGKOK 10100, THAILANDTEL:66-2-222-0072 FAX:66-2-224-8071

39THAILANDID MART CO., LTD.168/57 NAKNIWAS ROAD, KHWAENG LADPRAO, KHET LADPRAO, BANGKOK 10230, THAILANDTEL:66-2530-3777 FAX:66-2530-6777

38

TURKEYPOLYMAK MUHENDISLIK-AHMET COMAKESENSEHIR MAH. KURKCULER CAD. ERYILMAZ SOK. NO:31 DUDULLU ‒ ESENSEHIR UMRANIYE ISTANBUL, TURKEYTEL:90-216-527 3030 FAX:90-216-527 6510

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11 U.S.A.ZERO-MAX, INC.13200 SIXTH AVENUE NORTH, PLYMOUTH, MINNESOTA 55441, U.S.A.TEL:1-763-546-4300 FAX:1-763-546-8260

43 VIETNAMANH NGHI SON SERVICE TRADING CO., LTD.D3 MIEU NOI RESIDENT AREA, DINH TIEN HOANG STREET, W.3, BINH THANH DIST., HCMC, VIETNAMTEL:84 8 3517 0401 FAX:84 8 3517 0403

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GERMANYINTORQ GmbH & Co.KGWULMSER WEG5,D-31855 AERZEN GERMANYTEL:49-5154-9539-41 FAX:49-5154-9539-10

GERMANYKENDRION MAGNETA GmbHDIBBETWEG 31, D-31855 AERZEN OT GROSS BERKEL, GERMANYTEL:49-5154-953132 FAX:49-5154-953141

World Wide Network

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002 MIKI PULLEY MIKI PULLEY 003

SPRING-ACTUATED BRAKE AND CONTROLLER

Ultra-compact design spring-actuated brakesA spring-actuated brake is a brake that is operated by the push force of a built-in spring in the event of a power failure or when the power is cut off in an emergency. In other words, when a machine is running it continuously consumes electric power in order to maintain the brake in a released condition. However, the necessary electrical energy consumed by a spring-actuated brake when the brake starts to release differs greatly from the energy required to maintain the brake in a released condition. Intrinsically, only a very small electrical energy was necessary to hold the brake in a released condition.

Accordingly, a variety of merits can be obtained by designing a spring-actuated brake based on the assumption that it will incorporate a dedicated controller to control the necessary electrical energy for overcoming the push force of the spring when the brake starts to release and also the necessary electrical energy for keeping the brake in a released condition.

Thorough reduction of rotor weight

High-intensity glass cloth has been adopted for the core material of the rotor to secure sufficient strength and to actualize overwhelming lighter weight.

Ultra-compact design with 1/2 of thickness compared with the conventional company product

The lead wire that was taken from the outside diameter can be taken

in the direction of the shaft of the reverse mounting surface. The limited

space can be utilized as efficiently as possible.

Compared with BX series, which is the conventional company product,

the thickness has been reduced to 1/2.

Conventional company product Ultra-compact brake

Optimum design by 3D-CAD and FEM

It was the best designed using a finite element method (FEM) for magnetic field analysis of the electromagnetic brake.

A variety of merits

By incorporating a dedicated controller in the spring-actuated brake, a variety of merits can be obtained.

which reduces the thickness of the brake to 1/2

Compact design

which reduces power consumption to 1/3

Energy saving designwhich reduces heat generation to 1/2

Low heat generation design

which doubles the torque

High torque designwhich doubles the life of the brake

Long life design

002 MIKI PULLEY MIKI PULLEY 003

SPRING-ACTUATED BRAKE AND CONTROLLER

Ultra-compact design spring-actuated brakesA spring-actuated brake is a brake that is operated by the push force of a built-in spring in the event of a power failure or when the power is cut off in an emergency. In other words, when a machine is running it continuously consumes electric power in order to maintain the brake in a released condition. However, the necessary electrical energy consumed by a spring-actuated brake when the brake starts to release differs greatly from the energy required to maintain the brake in a released condition. Intrinsically, only a very small electrical energy was necessary to hold the brake in a released condition.

Accordingly, a variety of merits can be obtained by designing a spring-actuated brake based on the assumption that it will incorporate a dedicated controller to control the necessary electrical energy for overcoming the push force of the spring when the brake starts to release and also the necessary electrical energy for keeping the brake in a released condition.

Thorough reduction of rotor weight

High-intensity glass cloth has been adopted for the core material of the rotor to secure sufficient strength and to actualize overwhelming lighter weight.

Ultra-compact design with 1/2 of thickness compared with the conventional company product

The lead wire that was taken from the outside diameter can be taken

in the direction of the shaft of the reverse mounting surface. The limited

space can be utilized as efficiently as possible.

Compared with BX series, which is the conventional company product,

the thickness has been reduced to 1/2.

Conventional company product Ultra-compact brake

Optimum design by 3D-CAD and FEM

It was the best designed using a finite element method (FEM) for magnetic field analysis of the electromagnetic brake.

A variety of merits

By incorporating a dedicated controller in the spring-actuated brake, a variety of merits can be obtained.

which reduces the thickness of the brake to 1/2

Compact design

which reduces power consumption to 1/3

Energy saving designwhich reduces heat generation to 1/2

Low heat generation design

which doubles the torque

High torque designwhich doubles the life of the brake

Long life design

004 MIKI PULLEY MIKI PULLEY 005

ApplicationExample of mounting on the output shaft of a servo-motor

Customized example-2Specifications ・Brake torque : 0.3N･m ・Over excitation voltage : DC24V ・Constant excitation voltage : DC12V ・Power consumption : 4.3W

Background to customization ・Making the brake more compact to match the available space inside the machine. ・A high torque is necessary for keeping the brake in a hold condition. ・A press-fit type can be used on the mounting shaft and the rotor hub.

Dimensions ・Outer diameter : φ48mm（φ47mm） ・Overall length : 13.8mm（32mm）

Customized example-1Specifications ・Brake torque : 0.32N･m ・Over excitation voltage : DC24V ・Constant excitation voltage : DC7V ・Power consumption : 3W

Background to customization ・Attaining a brake base of no more than 15 mm by making the machine more compact. ・Low heat generation design for minimizing the effect of heat generated by the brake on other parts. ・Emergency braking is also possible.

Dimensions ・Outer diameter : φ39mm（φ37mm） ・Overall length : 14.6mm（32mm）

* Dimensions in parentheses are equivalent to those of our standard products.

* Dimensions in parentheses are equivalent to those of our standard products.

The photograph at right shows an example of an integrated construction in which an ultra-compact spring-actuated brake is installed on the output shaft of a servo motor and a rotor hub is machined onto the timing pulley.It is possible to make the total length shorter than the length of a built-in servo motor that has a brake, making a machine more compact.

Customize & ApplicationSPRING-ACTUATED BRAKE & CONTROLLER

How to Place an Order BXR-02-10LE

Size Brake with PWM controller type

7V

24

V

0.2ｓ 0.2ｓ

Input Red - Black

Output Yellow - Yellow

24

V

* The brake output is controlled by the input power to the input read wire being toggled ON/OFF.

time

Volta

ge

■ Timing charts

22

6

12

6.3

5 5

4.5

A

20.5

Detail Ａ

* Mass* Case* Mold

INP

UT

OU

TPU

T

－＋

（2

9）

28

13

15 120 ±5

■ Dimensions

: 0.02kg: PBT(UL94V-0): Epoxy(UL94V-0)

＋

－DC

24

VS

moo

thin

g po

wer

sup

plie

s

Bra

ke c

oil

Lead wire (Red)

Lead wire (Black)

Lead wire (Yellow)

Lead wire (Yellow)

■ Structure

Con

trol

circ

uit

Lead wire

RedBlackYellowYellow

Function

Input (＋)Input (－)OutputOutput

Function description

Connector for a smoothing power DC24V (＋)Connector for a smoothing power DC24V (－)Connector for a brake （Regardless of polarity）Connector for a brake （Regardless of polarity）

Specification

UL3398 AWG22UL3398 AWG22UL3398 AWG22UL3398 AWG22

Model

Input voltageOutput voltage

Max. output currentTime rating

Insulating resistanceDielectric strength voltageAmbient environment

BEM-24ES7-120N

DC24V ±10% Smoothing power suppliesOver excitation DC24V (0.2s), Constant excitation DC7V (±10%) ･ PWM control

DC1.0A (at 20℃) ･ DC0.8A (at 60℃) Continuous

DC500V, 100MΩ with Megger (Between lead wire and case)AC1000V 50/60Hz 1min (Between lead wire and case)－20 to 60℃　5 to 95%RH, With no condensation, freezing

■ Controller part■ Specifications

Model Size

BXR-01-10LEBXR-02-10LEBXR-03-10LE

010203

394856

334250

91515

182827

Radial dimensions [mm] Axial direction dim. [mm]

φB φCφA

5.55.56.5

3.03.03.4

1414

14.5

SφD

81414

φd Max.

121919

□F φV

7.07.07.4

N

Processing dim. of the rotor hub [mm]

φD2 □F2

0.10.10.1

aK

121919

0－0.07 0－0.07 0－0.07

142323

0－0.1 0－0.1 0－0.1

■ Dimensions

φA

h9

(Spi

got

join

t de

pth:

5)

3-φ

V φD

φC

3-120°

□F

30°

3-S

(K)

N a

φB

(φd

H7

)

Lead wire length: 400mmUL3398 AWG26

25

6.3

6.3

6.3

6.3

4 or more

φD

2

0.05

//

□F2

Processing dimension of the rotor hub* The rotor hub can be made to suit your requirements.

Model Size

BXR-01-10LE

BXR-02-10LE

BXR-03-10LE

01

02

03

0.32

0.62

1.32

Over excitationConstant excitationOver excitationConstant excitationOver excitationConstant excitation

247

247

247

22.01.9

22.01.9

26.02.2

2.5×10－10

3.8×10－10

4.0×10－10

Coil (at20℃)

Outputstate

Voltage[V]

Staticfrictiontorque

TS [N･m]

F

F

F

6000

6000

6000

Heat-resist-anceclass

Wattage[W]

0.920.270.920.271.080.32

Current[A]

26.2

26.2

22.2

Resistance[Ω]

Max.rotationspeed[min－1]

15

87

87

AllowablebrakingenergyEbaℓ [J]

3000

17000

17000

TotalbrakingenergyET [J]

0.035

0.050

0.060

Armaturepull-in time(DC24V)

ta [s]

0.020

0.020

0.020

Armaturerelease time

(DC7V)tar [s]

Rotating part moment of

inertiaJ [kg･m2]

0.08

0.12

0.16

Mass

[kg]

■ Brake part■ Specifications

Adapted to the RoHS

SPRING-ACTUATED BRAKE & CONTROLLER

BXR LE Model Holding use

004 MIKI PULLEY MIKI PULLEY 005

ApplicationExample of mounting on the output shaft of a servo-motor

Customized example-2Specifications ・Brake torque : 0.3N･m ・Over excitation voltage : DC24V ・Constant excitation voltage : DC12V ・Power consumption : 4.3W

Background to customization ・Making the brake more compact to match the available space inside the machine. ・A high torque is necessary for keeping the brake in a hold condition. ・A press-fit type can be used on the mounting shaft and the rotor hub.

Dimensions ・Outer diameter : φ48mm（φ47mm） ・Overall length : 13.8mm（32mm）

Customized example-1Specifications ・Brake torque : 0.32N･m ・Over excitation voltage : DC24V ・Constant excitation voltage : DC7V ・Power consumption : 3W

Background to customization ・Attaining a brake base of no more than 15 mm by making the machine more compact. ・Low heat generation design for minimizing the effect of heat generated by the brake on other parts. ・Emergency braking is also possible.

Dimensions ・Outer diameter : φ39mm（φ37mm） ・Overall length : 14.6mm（32mm）

* Dimensions in parentheses are equivalent to those of our standard products.

* Dimensions in parentheses are equivalent to those of our standard products.

The photograph at right shows an example of an integrated construction in which an ultra-compact spring-actuated brake is installed on the output shaft of a servo motor and a rotor hub is machined onto the timing pulley.It is possible to make the total length shorter than the length of a built-in servo motor that has a brake, making a machine more compact.

Customize & ApplicationSPRING-ACTUATED BRAKE & CONTROLLER

How to Place an Order BXR-02-10LE

Size Brake with PWM controller type

7V

24

V

0.2ｓ 0.2ｓ

Input Red - Black

Output Yellow - Yellow

24

V

* The brake output is controlled by the input power to the input read wire being toggled ON/OFF.

time

Volta

ge

■ Timing charts

22

6

12

6.3

5 5

4.5

A

20.5

Detail Ａ

* Mass* Case* Mold

INP

UT

OU

TPU

T

－＋

（2

9）

28

13

15 120 ±5

■ Dimensions

: 0.02kg: PBT(UL94V-0): Epoxy(UL94V-0)

＋

－DC

24

VS

moo

thin

g po

wer

sup

plie

s

Bra

ke c

oil

Lead wire (Red)

Lead wire (Black)

Lead wire (Yellow)

Lead wire (Yellow)

■ Structure

Con

trol

circ

uit

Lead wire

RedBlackYellowYellow

Function

Input (＋)Input (－)OutputOutput

Function description

Connector for a smoothing power DC24V (＋)Connector for a smoothing power DC24V (－)Connector for a brake （Regardless of polarity）Connector for a brake （Regardless of polarity）

Specification

UL3398 AWG22UL3398 AWG22UL3398 AWG22UL3398 AWG22

Model

Input voltageOutput voltage

Max. output currentTime rating

Insulating resistanceDielectric strength voltageAmbient environment

BEM-24ES7-120N

DC24V ±10% Smoothing power suppliesOver excitation DC24V (0.2s), Constant excitation DC7V (±10%) ･ PWM control

DC1.0A (at 20℃) ･ DC0.8A (at 60℃) Continuous

DC500V, 100MΩ with Megger (Between lead wire and case)AC1000V 50/60Hz 1min (Between lead wire and case)－20 to 60℃　5 to 95%RH, With no condensation, freezing

■ Controller part■ Specifications

Model Size

BXR-01-10LEBXR-02-10LEBXR-03-10LE

010203

394856

334250

91515

182827

Radial dimensions [mm] Axial direction dim. [mm]

φB φCφA

5.55.56.5

3.03.03.4

1414

14.5

SφD

81414

φd Max.

121919

□F φV

7.07.07.4

N

Processing dim. of the rotor hub [mm]

φD2 □F2

0.10.10.1

aK

121919

0－0.07 0－0.07 0－0.07

142323

0－0.1 0－0.1 0－0.1

■ Dimensions

φA

h9

(Spi

got

join

t de

pth:

5)

3-φ

V φD

φC

3-120°

□F

30°

3-S

(K)

N a

φB

(φd

H7

)

Lead wire length: 400mmUL3398 AWG26

25

6.3

6.3

6.3

6.3

4 or more

φD

2

0.05

//

□F2

Processing dimension of the rotor hub* The rotor hub can be made to suit your requirements.

Model Size

BXR-01-10LE

BXR-02-10LE

BXR-03-10LE

01

02

03

0.32

0.62

1.32

Over excitationConstant excitationOver excitationConstant excitationOver excitationConstant excitation

247

247

247

22.01.9

22.01.9

26.02.2

2.5×10－10

3.8×10－10

4.0×10－10

Coil (at20℃)

Outputstate

Voltage[V]

Staticfrictiontorque

TS [N･m]

F

F

F

6000

6000

6000

Heat-resist-anceclass

Wattage[W]

0.920.270.920.271.080.32

Current[A]

26.2

26.2

22.2

Resistance[Ω]

Max.rotationspeed[min－1]

15

87

87

AllowablebrakingenergyEbaℓ [J]

3000

17000

17000

TotalbrakingenergyET [J]

0.035

0.050

0.060

Armaturepull-in time(DC24V)

ta [s]

0.020

0.020

0.020

Armaturerelease time

(DC7V)tar [s]

Rotating part moment of

inertiaJ [kg･m2]

0.08

0.12

0.16

Mass

[kg]

■ Brake part■ Specifications

Adapted to the RoHS

SPRING-ACTUATED BRAKE & CONTROLLER

BXR LE Model Holding use

006 MIKI PULLEY MIKI PULLEY 007

■ Selection

Tℓmax : Maximum load torque [N・m]K : Safety factor (refer to the table below)

■ Consideration of required torque to hold loads

Load state

Low inertia / small load fluctuationsOrdinary use with normal inertia

Hi inertia / large load fluctuations

1.523

Factor

1

Ts : Static friction torque of brake [N・m]

■ Provisional selection of size2

J : Total moment of inertia on load side [kg・m2]

ET : Total braking energy [J]

n : Rotation speed [min－1]Tb : Brake torque [N・m]Tℓmax : Maximum load torque [N・m]

■ Consideration of energy3

■ Consideration of number of operations4

T = Tℓmax × K [N・m]

TS ＞ T [N・m]

J × n2 Tb

182 Tb ± Tℓmax×Eb = [J]

Eb ≪ Ebaℓ [J]

ET

EbL = [times]

Use the following equation to find the torque T required to hold a load while stationary.

A brake of a size for which torque T found from the equations above satisfies the following equation must be selected.

The sign of maximum load torque Tℓmax is plus when the load works in the direction that assists braking and minus when it works in the direction that hinders braking.

The total number of braking operations (service life) when performing emergency braking L must be found using the following equation to confirm that required specifications are satisfied.

Note that the frequency of emergency braking will also vary with operating environment; however, it should be about once per minute or better. When the braking energy of a single operation Eb is 70% or more of the allowable braking energy Ebaℓ , however, allow the brake to cool sufficiently after emergency braking before resuming use.

When considering a brake with the objective of holding loads, braking is limited to emergency braking.Use the following equation to find the braking energy Eb for a single operation required for emergency braking. You must confirm that this result is sufficiently smaller than the allowable braking energy Ebaℓ of the selected brake.

■ Operating characteristics■ Operating time

Exci

tati

on v

olta

geEx

cita

tion

cur

rent

Con

trol

in

put

Ope

ratin

g in

put

Con

trol

in

put

Ope

ratin

g in

put

Time

Time

Time

Time

Torq

ueR

otat

ion

spee

d

Initial delay time

Armature release time

80％ of the rated dynamic friction torque (Td)

Armature pull in time

Initial delay time

Decreasing torque

10％ of the rated torque (Tr)D

rag

torq

ue (

Tdg)

Actual braking time (tab)

Actual torque build-up time (tap)

Torque decaying time

Release time (tre)Torque build-up time (tp)

Braking time (tb)

Total braking time (ttb)

Driven side

Stop

(tid) (tid)

(tar) (ta)

Dynamic friction torque

(Td)

Static friction torque

(Ts)

(td)

tar

tap

tp : Torque build-up time

ta : Armature pull in time

tid

: Armature release time

: Actual torque build-up time

: Initial delay time

The time from when current shuts off until the armature returns to its position prior to being pulled in and torque begins to be generated

Size

010203

0.0200.0200.020

0.0350.0500.060

tar [s] (DC7V) ta [s] (DC24V)

BXR-01-10LEBXR-02-10LEBXR-03-10LE

Model

The time from when torque first begins to be generated until it reaches 80% of rated torque

The time from when current flow is shut off until torque reaches 80% of rated torque

The time from when current flow first starts until the armature is pulled in and torque disappears

The time from start of command input to actuation input or release input to the main brake body

■ Precautions for use■ Environment

■ Operating temperature

■ Power supply voltage fluctuations

■ Air gap adjustment

■ Circuit protectors

The control function operates as a result of the change in the ON/OFF status at the input side, so carry out switching at the input side of the dedicated controller.

■ Control using the controller

These brake units are dry braking systems, meaning that the torque will drop if oil residue, moisture, or other liquids get onto friction surfaces. Attach the protective cover when working in areas with oil, moisture, dust, and other particles that could affect the braking system.

The operating temperature range of brake part is －10℃ to 40℃ and controller part is －20℃ to 60 ℃. If you will use the product at other temperatures, consult MIKI PULLEY.

Full braking performance may not be guaranteed with extreme changes in power supply voltage. Make sure to keep power supply voltage to within ± 10% of the rated voltage value.

BXR LE models do not require air gap adjustment. The brake air gap is adjusted when the braking system is shipped from the factory.

A circuit protector is built into a dedicated controller, so do not connect another circuit protector to the controller.

■ Precautions for handling■ Brakes

■ Precautions for mounting■ Fixing the rotor hub

■ Shafts

■ Bolts and screws

■ Accuracy of brake attachment surfaces

■ Lead wires

■ Frictional surface

Size

010203

0.050.050.10

0.020.020.02

Concentricity (X)T.I.R. [mm]

Perpendicularity (Y)T.I.R. [mm]

BXR-01-10LEBXR-02-10LEBXR-03-10LE

Model

Most electromagnetic braking systems are made using flexible materials. Be careful when handling such parts and materials as striking or dropping them or applying excessive force could cause them to become damaged or deformed.

Be careful not to pull excessively on the brake lead wires, bend them at sharp angles, or allow them to hang too low.

Since these are dry brakes, they must be used with the frictional surface dry. Keep water and oil off of the frictional surfaces when handling the brakes.

Make sure that concentricity (X) and perpendicularity (Y) do not exceed the allowable values of the table below.

Rotor

Rotor hubArmature

Plate

Stator

Coil

Bolt

ShaftSet screw

A

A

A

Y

X

The BXR LE model has been designed for maximum space saving, permitting the rotor to be custom-designed freely. When carrying out design, use design and fixing methods that prevent the rotor from touching the armature or the stator. Also, when employing a fixing method that involves the use of a general hex socket head set screw and adhesive, be careful that the adhesive does not get onto the surface of the rotor hub.

The shaft tolerance should be h7 class (JIS B 0401).

Implement screw-locking measures such as use of an adhesive thread locking compound to bolts used to install brakes.

SPRING-ACTUATED BRAKES

Items Checked for Design Purposes

006 MIKI PULLEY MIKI PULLEY 007

■ Selection

Tℓmax : Maximum load torque [N・m]K : Safety factor (refer to the table below)

■ Consideration of required torque to hold loads

Load state

Low inertia / small load fluctuationsOrdinary use with normal inertia

Hi inertia / large load fluctuations

1.523

Factor

1

Ts : Static friction torque of brake [N・m]

■ Provisional selection of size2

J : Total moment of inertia on load side [kg・m2]

ET : Total braking energy [J]

n : Rotation speed [min－1]Tb : Brake torque [N・m]Tℓmax : Maximum load torque [N・m]

■ Consideration of energy3

■ Consideration of number of operations4

T = Tℓmax × K [N・m]

TS ＞ T [N・m]

J × n2 Tb

182 Tb ± Tℓmax×Eb = [J]

Eb ≪ Ebaℓ [J]

ET

EbL = [times]

Use the following equation to find the torque T required to hold a load while stationary.

A brake of a size for which torque T found from the equations above satisfies the following equation must be selected.

The sign of maximum load torque Tℓmax is plus when the load works in the direction that assists braking and minus when it works in the direction that hinders braking.

The total number of braking operations (service life) when performing emergency braking L must be found using the following equation to confirm that required specifications are satisfied.

Note that the frequency of emergency braking will also vary with operating environment; however, it should be about once per minute or better. When the braking energy of a single operation Eb is 70% or more of the allowable braking energy Ebaℓ , however, allow the brake to cool sufficiently after emergency braking before resuming use.

When considering a brake with the objective of holding loads, braking is limited to emergency braking.Use the following equation to find the braking energy Eb for a single operation required for emergency braking. You must confirm that this result is sufficiently smaller than the allowable braking energy Ebaℓ of the selected brake.

■ Operating characteristics■ Operating time

Exci

tati

on v

olta

geEx

cita

tion

cur

rent

Con

trol

in

put

Ope

ratin

g in

put

Con

trol

in

put

Ope

ratin

g in

put

Time

Time

Time

Time

Torq

ueR

otat

ion

spee

d

Initial delay time

Armature release time

80％ of the rated dynamic friction torque (Td)

Armature pull in time

Initial delay time

Decreasing torque

10％ of the rated torque (Tr)D

rag

torq

ue (

Tdg)

Actual braking time (tab)

Actual torque build-up time (tap)

Torque decaying time

Release time (tre)Torque build-up time (tp)

Braking time (tb)

Total braking time (ttb)

Driven side

Stop

(tid) (tid)

(tar) (ta)

Dynamic friction torque

(Td)

Static friction torque

(Ts)

(td)

tar

tap

tp : Torque build-up time

ta : Armature pull in time

tid

: Armature release time

: Actual torque build-up time

: Initial delay time

The time from when current shuts off until the armature returns to its position prior to being pulled in and torque begins to be generated

Size

010203

0.0200.0200.020

0.0350.0500.060

tar [s] (DC7V) ta [s] (DC24V)

BXR-01-10LEBXR-02-10LEBXR-03-10LE

Model

The time from when torque first begins to be generated until it reaches 80% of rated torque

The time from when current flow is shut off until torque reaches 80% of rated torque

The time from when current flow first starts until the armature is pulled in and torque disappears

The time from start of command input to actuation input or release input to the main brake body

■ Precautions for use■ Environment

■ Operating temperature

■ Power supply voltage fluctuations

■ Air gap adjustment

■ Circuit protectors

The control function operates as a result of the change in the ON/OFF status at the input side, so carry out switching at the input side of the dedicated controller.

■ Control using the controller

These brake units are dry braking systems, meaning that the torque will drop if oil residue, moisture, or other liquids get onto friction surfaces. Attach the protective cover when working in areas with oil, moisture, dust, and other particles that could affect the braking system.

The operating temperature range of brake part is －10℃ to 40℃ and controller part is －20℃ to 60 ℃. If you will use the product at other temperatures, consult MIKI PULLEY.

Full braking performance may not be guaranteed with extreme changes in power supply voltage. Make sure to keep power supply voltage to within ± 10% of the rated voltage value.

BXR LE models do not require air gap adjustment. The brake air gap is adjusted when the braking system is shipped from the factory.

A circuit protector is built into a dedicated controller, so do not connect another circuit protector to the controller.

■ Precautions for handling■ Brakes

■ Precautions for mounting■ Fixing the rotor hub

■ Shafts

■ Bolts and screws

■ Accuracy of brake attachment surfaces

■ Lead wires

■ Frictional surface

Size

010203

0.050.050.10

0.020.020.02

Concentricity (X)T.I.R. [mm]

Perpendicularity (Y)T.I.R. [mm]

BXR-01-10LEBXR-02-10LEBXR-03-10LE

Model

Most electromagnetic braking systems are made using flexible materials. Be careful when handling such parts and materials as striking or dropping them or applying excessive force could cause them to become damaged or deformed.

Be careful not to pull excessively on the brake lead wires, bend them at sharp angles, or allow them to hang too low.

Since these are dry brakes, they must be used with the frictional surface dry. Keep water and oil off of the frictional surfaces when handling the brakes.

Make sure that concentricity (X) and perpendicularity (Y) do not exceed the allowable values of the table below.

Rotor

Rotor hubArmature

Plate

Stator

Coil

Bolt

ShaftSet screw

A

A

A

Y

X

The BXR LE model has been designed for maximum space saving, permitting the rotor to be custom-designed freely. When carrying out design, use design and fixing methods that prevent the rotor from touching the armature or the stator. Also, when employing a fixing method that involves the use of a general hex socket head set screw and adhesive, be careful that the adhesive does not get onto the surface of the rotor hub.

The shaft tolerance should be h7 class (JIS B 0401).

Implement screw-locking measures such as use of an adhesive thread locking compound to bolts used to install brakes.

SPRING-ACTUATED BRAKES

Items Checked for Design Purposes

MODEL BXR LESpring-actuated brake and P.W.M. controller

'14.10-.5-MP-BLE(en)-001A

03

12

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AUSTRALIANAISMITH ENGINEERING & MANUFACTURING CO. PTY. LTD.149 HEIDELBERG ROAD, NORTHCOTE 3070,VICTORIA, AUSTRALIATEL:61-3-9489-9811 FAX:61-3-9482-1474

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47GERMANYCENTA ANTRIEBE KIRSCHEY GmbHBERGISCHE STRASSE 7 42781 HAAN, GERMANYTEL:49-2129-9120 FAX:49-2129-2790

48

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54

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37

TAIWAN MIKI PULLEY(TAIWAN)CO., LTD.2F, NO.46, KEYA RD., DAYA DISTRICT, TAICHUNG CITY, 428, TAIWAN

10

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38

TURKEYPOLYMAK MUHENDISLIK-AHMET COMAKESENSEHIR MAH. KURKCULER CAD. ERYILMAZ SOK. NO:31 DUDULLU ‒ ESENSEHIR UMRANIYE ISTANBUL, TURKEYTEL:90-216-527 3030 FAX:90-216-527 6510

53

11 U.S.A.ZERO-MAX, INC.13200 SIXTH AVENUE NORTH, PLYMOUTH, MINNESOTA 55441, U.S.A.TEL:1-763-546-4300 FAX:1-763-546-8260

43 VIETNAMANH NGHI SON SERVICE TRADING CO., LTD.D3 MIEU NOI RESIDENT AREA, DINH TIEN HOANG STREET, W.3, BINH THANH DIST., HCMC, VIETNAMTEL:84 8 3517 0401 FAX:84 8 3517 0403

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GERMANYINTORQ GmbH & Co.KGWULMSER WEG5,D-31855 AERZEN GERMANYTEL:49-5154-9539-41 FAX:49-5154-9539-10

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