Overrunning Clutches & Backstops

HBG Clutches

Marland Clutch HB Series Clutches

Automatic freewheel clutch mounted on hydrodynamic brake. Allows brake to work only when lowering loads from drawworks cable reel.

Uniform Load Distribution is assured by full-phase true cylindrical rollers enclosed in a cage to act in unison on flat cam surfaces. The cage forces all the rollers to engage simultaneously, accurately maintaining their relative positions, thereby assuring that each roller will carry an equal share of the load.

Other designs utilize individual springs acting on each roller. This allows different energizing forces to cause one or more of the rollers to engage in the load carrying position prematurely, or to skew. This action will concentrate the full clutch load on one or just a few rollers causing destruction and failure of the rollers and clutch.

Features
    • Full-Phased Cam and Rollers
    • No Loose Parts
    • No Backlash
    • Long Service Life
    • Superior Roller Design
  • Altra Industrial Motion - Australia (Sydney)
  • Sydney New South Wales
  • Unit 1, 11 Penny Place
  • Arndell Park, NSW. 2148
  • Phone: 1300 ALTRAMOTION
  • Altra Industrial Motion - Australia (Melbourne)
  • Melbourne Victoria
  • Suite 36, Level 2/222 Lonsdale Street
  • Melbourne, VIC 3000
  • Phone: 1300 ALTRAMOTION
  • Altra Industrial Motion - Australia (Mackay Queensland)
  • Mackay Queensland
  • 14/20-34 Caterpillar Drive
  • Paget, QLD 4740
  • Phone: 1300 ALTRAMOTION
  • Altra Industrial Motion - Australia (Perth)
  • Perth Western Australia
  • 271 Great Eastern Highway
  • Belmont, WA 6104
  • Phone: 1300 ALTRAMOTION