Specifications

Maintain secure shaft connections in compatible power take-off assemblies with the Heavy Motions HM500007-29 Woodruff Key. This replacement component corresponds to Chelsea OEM number 500007-29 and is used in keyed PTO output shaft arrangements.

Its semicircular Woodruff design fits into a matching shaft keyway, helping prevent relative rotation between the shaft and the connected component during power transmission.

The key is designed for a 5/16 inch keyway and is associated with Heavy Motions 1K2K applications and selected Chelsea PTO assemblies, including configurations with 1-1/4 inch keyed output shafts.

During PTO maintenance, inspect the existing key and shaft keyway for wear or damage. Verify the replacement dimensions before ordering HM500007-29 from Wofford Truck Parts.

Woodruff Key Part Number: HM500007-29
Manufacturer: Heavy Motions Inc.
Product Type: PTO Shaft Woodruff Key
Component Category: Power Take-Off Replacement Parts
Key Style: Semicircular Woodruff Key
Key Size: 0.3125 in
Nominal Key Length: 1.00 in
Keyway Width: 0.3125 in
Material: Steel
Compatible Shaft Type: Keyed PTO Output Shaft
Associated PTO Application: Heavy Motions 1K2K
Chelsea Replacement Part Number: 500007-29
Compatible Output Configuration: Selected 1.25 in Keyed PTO Shafts
Primary Function: Shaft Connection and Torque Transfer
Installation Location: PTO Output Shaft Keyway
Operating Mechanism: Mechanical
Electrical Connection Required: No
Package Quantity: 1

Compatibility

Heavy Motions 1K2K PTO assemblies requiring Woodruff key HM500007-29

Heavy Motions six-bolt PTO output shaft assemblies using replacement key 500007-29

Chelsea 277 Series PTO assemblies using Woodruff key 500007-29

Chelsea 280 Series PTO assemblies using Woodruff key 500007-29

Chelsea 281 Series PTO assemblies using Woodruff key 500007-29

Chelsea 489 Series PTO assemblies with compatible keyed output shaft configurations

Chelsea 522 Series PTO assemblies with XD keyed output shafts


Alternative Part Numbers

  • Chelsea 500007-29
  • Newstar S-E968
  • Spicer 500007-29
  • World American WA20-03-1045
  • World American WA500007-29

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