Top Manufacturer of Spring Applied Brakes |HTB Brakes

Model HTB multiple disc, spring applied brakes are designed to be a cost effective solution when especially high torque is required in an extremely small package.

The high-torque electric brake is released (disengaged) when power is applied to the brake coil. Braking torque is applied when the power to the brake coil is removed.

Common HTB spring applied brake applications include medical imaging head positioning, stopping and holding in mechanized handling equipment, servo drive brakes and emergency stopping brakes for radar, aerospace, military, construction and commercial utilities.

As with all Carlyle Johnson Machine Co products, we can custom design and manufacture high-torque, spring applied brakes to meet your exact needs.

Specifications / Dimensions

W/O = Without. W/ = With.
Model	Static Torque(lb. ft.)	Locating Ø A	Locating Ø B	W/O Manual Release C	W/ Manual Release D	Bolt Circle ØE	Bolt Circle Thread F
HTB0270	20	2.70	0.0820	2.700	3.150	2.455	(4) # 8-32
HTB0350	40	3.50	1.500	2.750	3.300	3.215	(4) # 10-24
HTB0450	95	4.50	2.215	2.950	3.700	4.188	(4) # 10-24
HTB0600	220	6.00	2.875	3.550	4.350	5.625	(6) # 1/4-20
HTB0800	450	8.00	3.875	4.125	5.120	7.625	(8) # 1/4-20
HTB1000	900	10.00	4.875	4.960	6.160	9.500	(8) # 5/16-18

*Other bore sizes are available. All dimensions are measured in inches. Standard voltage is 24 or 100 VDC (±10%) Other voltages available.
Model	Optional Cover ØG	Set Screw Location H	Set Screw Size I	J	Standard Bore Size*	Keyway
HTB0270	2.875	.313	(2) # 6-32	1.000	7/16 or 1/2	1/8 or 1/16
HTB0350	3.700	.313	(2) # 8-32	1.000	3/4 or 7/8	3/16 or 3/32
HTB0450	4.700	.500	(2) # 10-24	1.000	1 or 1 1/8	1/4 x 1/8
HTB0600	6.300	.375	(2) # 1/4-20	1.300	1 1/2 or 1 5/8	3/8 x 3/16
HTB0800	8.250	.625	(2) # 3/8-24	1.250	2 or 2 1/4	1/2 x 1/4
HTB1000	10.300	.625	(2) # 2/8-24	1.750	2 1/2 or 2 3/4	5/8 x 5/16

Features of HTB Spring Applied Brakes

CJM's HTB spring applied brakes utilize a modular design, with optional debris cover and/or manual release, to provides an "off the shelf" solution to your braking needs. These brake components operate with minimal power consumption to disengage the brake, which reduces engagement/disengagement times and lowers drag torque.

While custom solutions are available, our HTB products provide extremely fast engagement/disengagement times when used in conjunction with a standard Carlyle Johnson Model CEC power supply. Other spring applied brakes and high torque solutions can be produced – our engineering staff is just a phone call away and ready to solve your toughest power transmission challenge.