Products for bench top machinists | LittleMachineShop.com

Ring, Timing Pulley

Ring, Timing Pulley - Main image
$0.8 $1.25 In stock

Ring, Timing Pulley is a replacement part offered by LittleMachineShop.com for bench top machinists. It is identified as part # 135 on the SC4 parts diagram (SC4-135) and is associated with the Sieg Industrial Group brand.

  • Product name: Ring, Timing Pulley
  • Part number: 135 on the SC4 parts diagram (SC4-135)
  • Brand: Sieg Industrial Group
  • SKU: Standard, code 5257
  • Use: replacement timing pulley ring for SC4 diagram reference
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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.2 / 5 · 5 reviews)

Lucy ★★★★★

The alignment holes for the timing belt are precisely cut—this pulley slid right onto the motor shaft without any binding. My lathe is running smoother now and seems quieter during threading operations.

Olivia T. ★★★★★

Finally got the SC4 back up and running — this part matches the diagram exactly, so no fiddling with fitment. The pulley teeth are clean and crisp, which keeps the belt tracking true at speed. Bench top projects are humming along again.

Ella D. ★★★★☆

The pulley's bore was a tight match for my lathe’s shaft, so it took a bit of gentle tapping to seat it properly. Once installed, it runs smoothly with no wobble, though I wish the set screw holes were pre-tapped a little deeper. Good replacement for the original part.