The S90MPA-B47D75S is a magnetic particle brake designed for tensioning, locking, and motor testing applications, with a shaft coupled to the housing via electrical excitation, producing torque proportional to DC input current. It has a solid shaft with a 3/16″ keyway and flat, oriented 90° to the keyway, and mounts via four #10-32 holes on a 4.228″ bolt circle. The brake operates at a maximum speed of 1800 rpm, delivers a mechanical torque range of 2.5-115 lbf in, has an electrical power dissipation of 13 watts, and supports a maximum overhung load of 8 lb. Its unforced response time is 55 msec and rotor inertia is 61 × 10⁻⁵ lb in·sec². The unit weighs 8.0 lb.
Clutches and brakes are essential for the efficient control and transfer of drive torque, speed, and power in many rotational drive systems. Precision brakes and clutches can be used to cease or regulate movement.
A brake is utilized to decrease or halt a load (braking) in a motor (either forward or reverse). The function of a clutch is to disengage a drive shaft, pausing the rotation and transferring torque to an output shaft.
A clutch-brake is a single unit with the two combined functions of clutching and braking.
Brakes and clutches are classified by the method used to disengage or stop rotary motion (i.e., friction, mechanical, or electromagnetic), as well as the operative mechanism used to employ the chosen element (i.e., electrical, mechanical, pneumatic, or hydraulic).
We offer several types of brakes, including permanent magnetic brakes, power-off, power-on, and magnetic particle brakes. We also offer several clutch styles, including roller clutches, slip clutches, and electromagnetic clutch couplings.
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Electric Brakes |
| Product Number | S90MPA-B47D75S |
| Product Name | Zero Backlash Brakes, Max. Overhung Load of 8 lb & Speed of 1800 rpm |
| Torque | 0.2083 to 9.58 Ft-lbs (0.2825 to 12.99 N-m) |
| Power | 0.0174 HP |
| Speed | 1800 rpm |
