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Electric / Electromagnetic Jaw Brakes Specifications

Advantages

Radial flux path design eliminates bearing loading
Highest torque in smallest space
Positive tooth drive assures secure engagement with minimum backlash
Hardened jaws have teeth of high-carbon alloy steel for positive tooth drive

Operation

Torque Range 5 lb. ft. to 1500 lb. ft.
Bi-directional operation
Drag-free neutral, no torque transmitted in the disengaged mode
Engaged fully by induced magnetic flux

Specifications / Dimensions

	Brake Dimensions			Adapter Flange Mounting Dimensions
Model	Coil Diameter* A	Length B	Jaw Diameter C	# of Screws	Screw Size	Pilot Diameter D	Bolt Circle E
JEB0375	3.797	2.563	4.047	3	1/4-20	3.226 or 3.222	2 1/4
JEB0425	4.359	2.750	4.625	3	1/4-20	4.059 or 4.055	3
JEB0475	4.828	3.063	5.188	4	1/4-20	4.059 or 4.055	3 3/16
JEB0625	6.359	3.625	6.750	4	1/2-13	5.975 or 5.970	4 1/2
JEB0800	8.094	4.063	8.500	6	3/8-16	7.375 or 7.370	5 1/2

*Dimensions shown are approximate. Contact Engineering for actual diameter.

Model	Static Torque (lb. ft.)	Teeth (qty)	Bore Min. (in.)	Bore Max. (in.)	Keyway (in.)	Engagement Speed Max. (rpm)	Operating Speed Max. (rpm)
JEB0375	60	360	3/4	7/8	3/16 x 3/32	100	5000
JEB0425	70	360	1	1 1/8	3/16 x 3/32	100	5000
JEB0475	150	560	1 1/4	1 3/8	1/4 x 1/8	100	5000
JEB0625	300	560	1 3/4	1 7/8	3/8 x 3/16	100	4200
JEB0800	600	360	2	2 1/4	7/16 x 7/32	100	3600

Model	Coil Voltage* (VDC ± 10%)	Coil Power** (watts)	Coil Max. Temp. (°C)	Clutch Inertia (lb-ft/sec²)	Clutch & Adapter Inertia (lb-ft/sec²)	Angular Backlash
JEB0375	100 or 24	45	300	.0004	.0011	1.0°
JEB0425	100 or 24	45	300	.0009	.0021	1.0°
JEB0475	100 or 24	62	300	.0016	.0036	1.5°
JEB0625	100 or 24	62	300	.0059	.0123	1.5°
JEB0800	100 or 24	76	300	.0175	.0343	2.0°

*Standard voltages shown. Other voltages available on special order. **Approximate.
All dimensions above shown in inches.

In addition to our standard Electric / Electromagnetic Jaw Brakes, our engineering department can custom design and manufacture a new component to meet your specific requirements. If you have further questions or would like to discuss your specific needs, please contact us.