81X / H78 Split Sprockets

NorthexTM 81X / H78 75DX Urethane Split Sprockets are a cost-effective solution to many idler and drive sprocket replacement needs.

Available in 9, 10, 11, 12, 13, and 14 Tooth versions, these easy to install sprockets can reduce inventory and downtime.

Inter-changeable shaft inserts from 1-7/16” to 2-15/16” shaft diameter and 3” or 4” LTB options (for most sizes) help with application flexibility.

Cast Zinc keyed drive hubs are available for low-torque / HP drive applications in 1-15/16” x 3” LTB and 2-7/16” x 3” LTB sizes.

Replacement 75DM self-lubricating bushings are also sold separately.

 Contact Northern Plastics today for more information.

Features & Benefits:

  • ASME / ANSI Standard tooth profile
  • Fits 81X and H78 Chains
  • Split design for easy installation and replacement
  • Long-lasting, increases chain life
  • 2 Grease fittings