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Motor Radial Load Force Ratings

Motors are capable of carrying an axial load in most applications. The following table provides

guidelines for 20,000 hour bearing life with a specified radial load applied to the center of the shaft.

Please consult with Rockwell Automation regarding loads, operating speeds and bearing life in your

particular application to ensure the proper selection of motors.

Brake Motor Application Guidelines

The brakes offered as options on these servo motors are holding brakes. They are designed to hold

the motor shaft at 0 rpm for up to the rated brake holding torque. The brakes are spring-set type, and

release when voltage is applied to the brake coil.

The brakes are not designed for stopping rotation of the motor shaft. Servo drive inputs should be

used to stop motor shaft rotation. The recommended method of stopping motor shaft rotation is to

command the servo drive to decelerate the motor to 0 rpm, and engage the brake after the servo drive

has decelerated the motor to 0 rpm.

If system main power fails, the brakes can withstand use as stopping brakes. However, use of the

brakes as stopping brakes creates rotational mechanical backlash that is potentially damaging to the

system, increases brake pad wear and reduces brake life. The brakes are not designed nor are they

intended to be used as a safety device.

A separate power source is required to disengage the brake. This power source may be controlled by

the servo motor controls, in addition to manual operator controls.

Brake Specifications

STANDARD RADIAL LOAD FORCE RATINGS

500 rpm 1000 rpm 2000 rpm 3000 rpm 4000 rpm 5000 rpm 6000 rpm

MOTOR lb (kg) lb (kg) lb (kg) lb (kg) lb (kg) lb (kg) lb (kg)

H-2005 105 (39) 84 (31) 66 (25) 58 (22) 53 (20) 49 (18) 45 (17)

H-3007 113 (42) 90 (34) 71 (27) 62 (23) 56 (21) 53 (20)

H-3016 126 (47) 101 (38) 79 (29) 69 (26) 63 (24) 59 (22)

H-4030 169 (63) 152 (57) 120 (45) 105 (39) 95 (35)

H-4050 205 (77) 164 (61) 129 (48) 113 (42) 103 (38)

H-4075 215 (80) 173 (65) 137 (51) 118 (44) 108 (40)

H-6100 435 (162) 345 (129) 274 (102) 240 (90)

H-6200 469 (175) 375 (140) 296 (110) 259 (97)

H-6300 495 (185) 390 (146) 311 (116) 270 (101)

H-8350 495 (185) 394 (147) 311 (116)

H-8500 518 (193) 413 (154) 326 (122)

NOTE: When motor shaft has no radial load, axial load rating = 100% of radial load rating above.

When motor shaft has both a radial load and an axial load, axial load rating = 44% of radial load rating above.

BRAKE DATA

MAX. BACKLASH HOLDING TORQUE COIL CURRENT

MOTOR SERIES (BRAKE ENGAGED) (lb/in) (Nm) at 24 VDC at 90 VDC

H-3000 1 degree, 30 minutes 20 2.26 0.50 ADC 0.13 ADC

H-4000 44 minutes 90 10.2 0.69 ADC 0.20 ADC

H-6000 29 minutes 275 31.1 1.30 ADC 0.48 ADC

H-8000 21 minutes 450 50.8 2.00 ADC 0.75 ADC

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Axial load force