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Rock Tumbler Motors

These motors only fit the rock tumblers listed below. If you need a motor for another tumbler or some other project visit Grainger.com.
Rock tumbler motors
We sell replacement motors for the most popular tumblers manufactured by Lortone and Thumler's Tumblers. They are easy to replace with no special tools required. If you have a screwdriver, small wrench, wire cutters and a knife you can install any of these motors. Please do not purchase these motors for other types of tumblers - get information for other tumblers here.
Thumler's A-R motor pulley

Thumler's A-R Model Tumblers Motor Pulley

Only $4.99
Thumler's Model B motor pulley

Thumler's Model B Tumbler Motor Pulley

Only $4.99
Thumlers tumbler motor

Thumler's A-R Model Tumbler Motor

Only $59.99
This overload protected motor fits all Thumlers AR series tumblers and will automatically shut off under excessive load. Here is a list of the tumblers this motor fits A-R1, A-R2, A-R6 and A-R12. This motor does not fit other tumblers.

Thumlers Model B tumbler motor

Thumler's Model B Tumbler Motor - Low Speed (Rock Tumbling)

Only $79.99
This is the low speed (1550 rpm) replacement motor designed for rock tumbling in Thumlers Model B rock tumbler. It is an overload protected motor that will shut off automatically when under excessive load. Easy to replace, just remove the belt, mounting screws and replace. This motor does not fit other tumblers.

Thumlers Model B high speed tumbler motor

Thumler's Model B Tumbler Motor - High Speed (Brass Tumbling)

Only $79.99
This is the high speed (3000 rpm) replacement motor designed for brass tumbling in Thumlers Model B tumbler. It is an overload protected motor that will shut off automatically when under excessive load. Easy to replace, just remove the belt, mounting screws and replace. This motor does not fit other tumblers.

Thumlers UV 10 vibratory tumbler motor

Thumler's UV-10 (Industrial) Tumbler Motor

Only $79.99
This replacement motor fits Thumlers industrial UV-10 vibratory rock tumbler. It is overload protected and will shut off automatically when under excessive load. This motor does not fit other tumblers.

Lortone model 3A, 33B and 45C tumbler motor

Lortone Model 3A, 33B and 45C Tumbler Motor

Only $39.99
Motors for the Lortone tumblers generally last a very long time - running many years without needing replacement. But, if you tumble a lot you might need a new motor. They are easy to replace if you know how to use crimp connectors to splice wire. This motor fits the Lortone Model 3A, 33B and 45C. This motor does not fit other tumblers.

Lortone model QT12, QT6 and QT66 motor

Lortone Model QT6, QT66 and QT12 Tumbler Motor

Only $89.99
Lortone QT motors are easy to replace. Just open the case, remove the belt guard, remove the belt, remove the two motor-mounting screws, replace the motor, replace the screws, replace the belt, replace the guard and close the case. Congratulations! This motor fits the Lortone Model QT6, QT66 and QT12 tumblers. This motor does not fit other tumblers.

Thumler's tumbler bearings

Lot-O-Tumbler Motor

Only $129.99
A replacement motor for the Lot-O-Tumbler Single or Twin. The motor fans that contain the counter weight are NOT included. This motor does not fit other tumblers.



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