Spindles, Jackshafts & Pulleys for Ride-On Mowers

Spindles, jackshafts and pulleys are the parts that transfer power from your ride-on mower's engine to the cutting blades. Spindles house the bearings the blade spins on, pulleys guide the drive belt around the deck, and idler pulleys keep tension on that belt so it runs smoothly.

Idler pulleys come in two main types: flat idler pulleys guide the belt along a flat surface, while V idler pulleys have a grooved profile to match a V-belt. Spindle bearings and spindle nuts are sold separately or in packs for mowers with multiple spindles, so check your mower's part number to match the correct pulley or bearing to your deck.

  • Flat idler pulleys
  • V idler pulleys
  • Spindle bearings and nuts
  • Clutch and drive pulleys

Frequently asked questions

What's the difference between a flat idler pulley and a V idler pulley?

A flat idler pulley has a smooth, flat surface and guides a flat belt, while a V idler pulley has a grooved profile to grip a V-belt. They aren't interchangeable, so check which type your mower deck uses.

How do I know which pulley fits my mower?

Match the part number on your current pulley or in your mower's parts manual to the listed part numbers, since pulleys are made for specific brands and models like John Deere, MTD, Toro or Husqvarna.

Can I replace just one spindle bearing or do I need the whole set?

Spindle bearings are often sold in sets of two, four or six to suit mowers with multiple spindles, so check how many bearings your deck uses before ordering.