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Simplicity 121007 Spindle Assembly, R.H.

Simplicity 121007 Spindle Assembly, R.H.

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Compatibility

This part will fit the following 4 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.

Simplicity 990086 - Simplicity Wonderboy Rear-Engine Riding Mower
SimplicitySimplicity 990086 - Simplicity Wonderboy Rear-Engine Riding MowerFRONT AXLE AND FRONT SUPPORT
Simplicity 990120 - Simplicity Wonderboy Rear-Engine Riding Mower, 4hp
SimplicitySimplicity 990120 - Simplicity Wonderboy Rear-Engine Riding Mower, 4hpFRONT AXLE AND FRONT SUPPORT
Simplicity 450 (990165) - Simplicity Wonderboy Rear-Engine Riding Mower
SimplicitySimplicity 450 (990165) - Simplicity Wonderboy Rear-Engine Riding MowerFRONT AXLE AND FRONT SUPPORT-Model 450
Simplicity 575 (990154) - Simplicity Wonderboy Rear-Engine Riding Mower
SimplicitySimplicity 575 (990154) - Simplicity Wonderboy Rear-Engine Riding MowerFRONT AXLE AND FRONT SUPPORT-Model 575

Description

The purpose of the Spindle is to control the safe rotation of the mower blade during operation. The spindle is often made of aluminum on residential mowers and steel on commercial mower decks. Much like a shear pin in other applications, the spindle is designed to break if the blade hits a hard object to protect the deck shell from damage. Screws are required for installation and are usually sold separately. Most use self-tapping screws to create the threads when screwed into the holes in the spindle.