Spotlight: Brakes & clutches

Dec. 1, 2006
Hysteresis brakes PHT-D hysteresis brakes operate by double permanent magnets and have no wear, making them suitable for constant tension applications

Hysteresis brakes

PHT-D hysteresis brakes operate by double permanent magnets and have no wear, making them suitable for constant tension applications as well as torque limiting applications.

Features & benefits

  • Torque ranges from 0 to 62 lb-in. in 9 models

  • Deliver torque regardless of slip speed

  • Smaller models have maximum speeds of 3,600 rpm; larger models have maximum speeds of 1,800 rpm

  • Can be adjusted individually within given torque range

Ogura Industrial Corp.
Somerset, N.J.
(732) 271-7361
www.ogura-clutch.com
Circle 275

Lift truck brake

LWB hydraulic-actuated, full-circle disc brake uses center hub of wheel rim as a friction surface to eliminate need for bolt-on friction rotors.

Features & benefits

  • High-strength ductile iron and asbestos-free friction material for reliable stopping and long life

  • Secondary seals protect piston seals; deflector plate prevents entanglement of foreign objects

  • Piston seals minimize fluid displacement and come in a variety of materials

  • Act as a spindle and bearing support for load wheel; minimizes temperatures as wheel's thermal mass absorbs heat

Carlisle Industrial Brake&Friction
Bloomington, Ind.
(812) 334-8727
www.carlislebrake.com
Circle 276

Electromagnetic power-off brakes

Thomson-Deltran AKB spring-set, electromagnetic power-off brakes feature a built-in quiet feature.

Features & benefits

  • Available in 1.83 to 5 in. diameters

  • Static engagement with torque from 12.5 to 470lbin.

  • Fixed field assembly does not rotate; rotor assembly secured to shaft

  • In power-off mode, fixed and rotating components engage to stop or hold load

Danaher Motion
Wood Dale, Ill.
(866) 993-2624
www.danahermotion.com
Circle 277

Capping clutch

Magnetic capping clutch features smooth torque magnetic technology to eliminate pounding of traditional synchronous headsets.

Features & benefits

  • Reduces variation of removal torque; improves process capability

  • Eliminates vibration and over-tightening

  • Easy-to-use setting scales for top-load spring and static torque

  • All stainless-steel construction, quad seals, and drain holes for frequent washdown

Warner Electric, Div. of Altra Industrial Motion
South Beloit, Ill.
(888) 350-1891
www.warnerelectric.com
Circle 278

Hollow-shaft clutch

Clutch uses magnetic particles for variable, smooth slip torque, torque limiting, and soft starts.

Features & benefits

  • Torque ranges from 1 to 38 lb-ft

  • Horizontally shaft-mounted

  • Torque transmitted with keyed shaft; input shaft driven by belt and pulley

  • 300 W heat dissipation

  • May be used as a brake for controlling payout tension

Placid Industries Inc.
Lake Placid, N.Y.
(518) 523-2422
www.placidindustries.com
Circle 279

Lightweight brake

Arc brake is spring-applied and electrically released and functions well on imagers mounted on rotating arms with travels less than 360°.

Features & benefits

  • Moves ±15° from null position

  • 5 in. long, 1.1 lb-brake supplies 90 lb-ft torque

  • Five stationary inner disks with friction pucks and six rotating outer disks

  • Power-off, spring set brake; can be configured as power-on or bi-stable (pulse operated)

  • Low drag when energized

Sepac Inc.
Elmira, N.Y.
(800) 331-3207
www.sepac.com
Circle 280

Multi-plate clutch

Marine-style clutch features reduced size and weight for higher torque and heat capacities.

Features & benefits

  • Torques from 75 to more than 1.2 million lb-ft

  • Speeds over 5,000 rpm

  • Small OD; large allowable bores

  • Drop-in replacement for other models, including Eaton CH clutch

Orttech
Solon, Ohio
(440) 498-7458
www.orttech.com
Circle 281

Sponsored Recommendations

The Digital Thread: End-to-End Data-Driven Manufacturing

May 1, 2024
Creating a Digital Thread by harnessing end-to-end manufacturing data is providing unprecedented opportunities to create efficiencies in the world of manufacturing.

Medical Device Manufacturing and Biocompatible Materials

May 1, 2024
Learn about the critical importance of biocompatible materials in medical device manufacturing, emphasizing the stringent regulations and complex considerations involved in ensuring...

VICIS Case Study

May 1, 2024
The team at VICIS turned to SyBridge and Carbon in order to design and manufacture protective helmet pads, leveraging the digitization and customization expertise of Toolkit3D...

What's Next for Additive Manufacturing?

May 1, 2024
From larger, faster 3D printers to more sustainable materials, discover several of the top additive manufacturing trends for 2023 and beyond.

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!