Gear, 2-Speed Spindle, Metal

Name: Gear, 2-Speed Spindle, Metal
Brand: Sieg Industrial Group
SKU: 3453
Price: 32.97 USD
Availability: InStock
Rating: 5.0 (5 reviews)

Gear, 2-Speed Spindle, Metal - Main image

$32.97 ~~$49.95~~ In stock

Steel transmission gear, 2-speed milling spindle.

This metal transmission gear goes on the spindle of the mini lathe and SIEG X2 mini mills with a 3MT spindle.

This is the larger of the two transmission gears. It has 21 Teeth on one end and 29 teeth on the other.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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 (5.0 / 5 · 5 reviews)

Nicholas T. ★★★★★ Oct 22, 2026

The fit on my X2 mill’s 3MT spindle was spot-on, and the steel teeth feel properly machined—no slop when shifting between the two speeds. Solid upgrade for the price.

Eli W. ★★★★★ Oct 21, 2026

The teeth on this gear mesh perfectly with my mini lathe's spindle, and the steel feels much more durable than the plastic one I replaced. Switching between speeds is now smooth and quiet, which was my main goal.

Ava ★★★★★ Oct 20, 2026

Installed this on my SIEG X2 mill and the 2-speed spindle now shifts smoothly between ranges. The steel feels noticeably more durable than the stock plastic gear I replaced.