Products for bench top machinists | LittleMachineShop.com

Shaft, Change Gears

Shaft, Change Gears - Main image
$2.97 $4.95 In stock

This change gear shaft is designed for use with Sieg Industrial Group bench top machines, serving as item 88 on the SC4 parts list. It mounts the B-C change gears to facilitate gear changes on your lathe or mill.

  • Replacement shaft for Sieg SC4 machines
  • Mounts the B-C change gears securely
  • Features an M6 threaded end for compatibility
  • Essential for maintaining proper gear operation
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Customer Reviews (5.0 / 5 · 5 reviews)

William Q. ★★★★★

Finally, a shaft that actually fits the SC4's B-C gears without slop. The machining is precise enough that the change lever engages cleanly on the first try, which saved me a lot of frustration.

Ryan B. ★★★★★

Installed this on my SC4 and the gear changes are now buttery smooth—the precision fit is exactly what I needed. No more fighting with misalignment.

Madison ★★★★★

Finally got my SC4 lathe's gear changes running smooth again with this shaft — the fit into the B-C gear mount was spot on without any filing.