(6 Pack) C3 Upgrade Blade Spindle Bearings for Toro TimeCutter 100-1048, 112-0423, 109966, 38-7820 - Includes HIGH Temperature Grease Upgrade Type Design

What It Is

This is a 6-pack of upgrade spindle bearings for Toro TimeCutter zero-turn mowers, designed to replace worn bearings in the blade spindle assemblies. They come pre-packed with high-temperature grease for improved durability in heavy-use or commercial mowing.

Fitment & Compatibility

These bearings fit Toro TimeCutter models using OEM part numbers 100-1048, 112-0423, 109966, and 38-7820. Before buying, confirm your mower’s deck size and model year—these work on 42”, 50”, and 54” decks from early 2000s to present, but not on older “TimeCutter” models with different spindle designs. Measure the bearing outer diameter (approx. 1.5”) and shaft diameter (approx. 0.75”) to match your existing spindle. They are a direct replacement for factory bearings but are not OEM Toro parts—they’re aftermarket upgrades.

Key Things to Know

• Quality: The included high-temp grease is a real upgrade over standard bearings, reducing failure in hot conditions or long mowing sessions. However, some users report slightly looser tolerances than OEM; check for shaft play after install.
• Installation: Moderate difficulty—you’ll need a bearing puller, press, or socket to remove old bearings and seat new ones. If your spindle housing is worn or damaged, these won’t fix wobble.
• Common gotcha: Don’t skip greasing the new bearings before install—they come pre-packed, but adding a dab to the outer race helps seating. Over-tightening the spindle nut can damage the bearing; torque to spec (usually 30-40 ft-lbs).
• Value: At ~$2.30 per bearing, this pack is cheaper than buying individual OEM bearings, but you get six—only buy if you plan to replace all spindles or have multiple machines.

Should You Buy It

Buy this pack if you’re doing a full spindle overhaul on one or two TimeCutter decks and want the heat-resistance advantage for heavy mowing. Skip it if you only need one bearing or if your spindle housings are damaged—you’ll waste money and time. For light residential use, standard bearings are fine, but this upgrade adds peace of mind for the price.