Placid Industries H140 Hysteresis Brake H140

Description
Torque is proportional to input current, and independent of RPM. Torque is especially smooth, even at near-zero RPM. Also good for light tension / high RPM applications, due to good heat dissipation ratings. All models except H3 have the Cog-Buster which keeps slip torque smooth. Torque is produced without friction plates or magnetic particles. Life is extremely long, even at high RPM, because torque is produced magnetically across an air gap. Slip torque is extremely smooth, even down to zero RPM. Placid Industries' Cog-Buster automatically de-cogs the brake within one revolution of the shaft. With no electrical excitation, the shaft freely rotates. With electrical excitation, the shaft becomes coupled to the case. While the load torque is less than the output torque, the shaft won’t rotate continuously. When the load torque is increased, the brake will slip smoothly at the torque level set by the coil input current. Not suitable for precise positioning applications
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Description
Torque is proportional to input current, and independent of RPM. Torque is especially smooth, even at near-zero RPM. Also good for light tension / high RPM applications, due to good heat dissipation ratings. All models except H3 have the Cog-Buster which keeps slip torque smooth. Torque is produced without friction plates or magnetic particles. Life is extremely long, even at high RPM, because torque is produced magnetically across an air gap. Slip torque is extremely smooth, even down to zero RPM. Placid Industries' Cog-Buster automatically de-cogs the brake within one revolution of the shaft. With no electrical excitation, the shaft freely rotates. With electrical excitation, the shaft becomes coupled to the case. While the load torque is less than the output torque, the shaft won’t rotate continuously. When the load torque is increased, the brake will slip smoothly at the torque level set by the coil input current. Not suitable for precise positioning applications
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Datasheet
Datasheet Summary
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The H140 hysteresis brake is a magnetically coupled device that provides smooth, current-proportional torque from 4 to 140 oz.-in. with no electrical excitation allowing free shaft rotation. It operates up to 5000 RPM and can dissipate up to 45 watts with the cover or 75 watts without, maintaining a maximum case temperature of 180°F. The brake features an auto-decogging mechanism that ensures consistent Torque across RPM, and it requires a constant-current DC power supply for stable performance. Shaft inertia is 97 × 10⁻⁵ lb.-in.-sec², and maximum overhung load is 40 lb. The unit weighs 6 lb. and is rated for 12 V, 24 V, or 90 V coil options with corresponding resistances of 20 Ω, 83 Ω, and 925 Ω.

Datasheet Summary
Powered by GS/AI

The H140 hysteresis brake is a magnetically coupled device that provides smooth, current-proportional torque from 4 to 140 oz.-in. with no electrical excitation allowing free shaft rotation. It operates up to 5000 RPM and can dissipate up to 45 watts with the cover or 75 watts without, maintaining a maximum case temperature of 180°F. The brake features an auto-decogging mechanism that ensures consistent Torque across RPM, and it requires a constant-current DC power supply for stable performance. Shaft inertia is 97 × 10⁻⁵ lb.-in.-sec², and maximum overhung load is 40 lb. The unit weighs 6 lb. and is rated for 12 V, 24 V, or 90 V coil options with corresponding resistances of 20 Ω, 83 Ω, and 925 Ω.

Suppliers

Company
Product
Description
Supplier Links
H140 Hysteresis Brake - H140 - Placid Industries
Elmira, NY, United States
H140 Hysteresis Brake
H140
H140 Hysteresis Brake H140
Torque is proportional to input current, and independent of RPM. Torque is especially smooth, even at near-zero RPM. Also good for light tension / high RPM applications, due to good heat dissipation ratings. All models except H3 have the Cog-Buster which keeps slip torque smooth. Torque is produced without friction plates or magnetic particles. Life is extremely long, even at high RPM, because torque is produced magnetically across an air gap. Slip torque is extremely smooth, even down to zero RPM. Placid Industries' Cog-Buster automatically de-cogs the brake within one revolution of the shaft. With no electrical excitation, the shaft freely rotates. With electrical excitation, the shaft becomes coupled to the case. While the load torque is less than the output torque, the shaft won’t rotate continuously. When the load torque is increased, the brake will slip smoothly at the torque level set by the coil input current. Not suitable for precise positioning applications

Torque is proportional to input current, and independent of RPM. Torque is especially smooth, even at near-zero RPM. Also good for light tension / high RPM applications, due to good heat dissipation ratings. All models except H3 have the Cog-Buster which keeps slip torque smooth.

  • Torque is produced without friction plates or magnetic particles. Life is extremely long, even at high RPM, because torque is produced magnetically across an air gap.
  • Slip torque is extremely smooth, even down to zero RPM. Placid Industries' Cog-Buster automatically de-cogs the brake within one revolution of the shaft.
  • With no electrical excitation, the shaft freely rotates.
  • With electrical excitation, the shaft becomes coupled to the case.
  • While the load torque is less than the output torque, the shaft won’t rotate continuously.
  • When the load torque is increased, the brake will slip smoothly at the torque level set by the coil input current.
  • Not suitable for precise positioning applications
Supplier's Site Datasheet

Technical Specifications

  Placid Industries
Product Category Electric Brakes
Product Number H140
Product Name H140 Hysteresis Brake
Power 0.0094 HP
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