We sell replacement motors, bearings, guides, shafts, retainer clips, barrels, retainer rings and lids. To purchase a complete machine or get more information, visit our Model B tumbler page.
Thumler's Model B Belt
This Thumler's Model B belt can be changed out without the use of any tools. Remove the old one and slip on the new one. It is that easy. This belt also fits all Thumler's A-R model tumblers.
Model B Tumbler Bearings
Thumler's Model B bearings are made of durable polyethylene. Bearings are simple to replace. Remove the retainer ring, slide the old bearing off, put the new one one and replace the retaining ring. We suggest purchasing some extra retainer rings just in case you damage some while taking it off or putting it on.
Model B Tumbler Barrel Guides
Thumler's Model B barrel guides are made of polyethylene. The guides are easy to replace. Remove the retainer clip, remove the bearing, rubber roller and then the old guide, slide a new guide on and put the other parts back on the shaft. We suggest purchasing some extra retainer clips just in case you damage one.
Thumler's Shaft Retainer Clips
Retainer clips are used to hold the bearings on the end of the shafts and to hold the nylon rollers in the proper location on the idler shaft.
Thumler's Tumbler Nylon Roller
After years of use the nylon rollers on the idler shaft my wear down and need to be replaced. We offer a set of two rollers for the A-R1 and A-R6 tumblers and a set of three rollers for the A-R2 and A-R12 tumblers.
Thumler's Rubber Roller
These rubber rollers for the drive shaft are what give the barrel traction and keep it turning to tumble the rocks inside. Replace worn rollers for optimum tumbling action. A set of two rubber rollers is needed for the A-R1 and A-R6 tumblers while a set of three rollers is needed for the A-R2 and A-R12 tumblers.
Model B Drive Shaft
Thumlers Model B replacement drive shaft that is easy to replace. Remove the belt, lift out the old shaft, snap in the new shaft and put the belt back on and you're ready to tumbler. It is a complete shaft with all components already on it.
Model B Idler Shaft:
A complete idler shaft for the Thumlers Model B rotary tumbler. Simple to replace, pop out the old shaft and put the new one in. Includes: Nylon rollers, bearings, Shaft, barrel guides and retainer rings.
Thumler's Model B Barrel Lid
This is the metal lid for Thumler's Model-B fifteen-pound barrel.
Thumler's Model B Barrel Gasket
This rubber gasket is what gives the 15-pound barrel on a Thumler's Model B tumbler a watertight seal. If you are trying to use this for a different tumbler barrel be sure to take accurate measurements. It usually does not fit other types of tumblers.
Diameter = 9" Hole center to hole center = 8" Hole diameter = 9/32"
Thumler's Model B Barrel Insert and Gasket
Replacement rubber barrel liner and gasket that gives the Model B barrel its watertight seal and quiet tumbling action.
Thumler's Model B Barrel wing nuts
A set of 6 wing nuts to tighten the lid on Thumler's fifteen-pound Model B barrel.
Thumler's Model B Barrel Washers
A set of 6 washers for under the wing nuts on Thumler's fifteen-pound Model B barrel.
Thumler's Model B Barrel
Thumler's Model B rock tumbler barrel is a large hexagon barrel with a 15-pound capacity. It is a metal and rubber barrel that comes with all the parts included so you can start tumbling as soon as you receive the barrel in the mail.
Barrel Dimensions in Inches
Outside height includes washer and wing nut.
Model B Motor Pulley
This pulley fits Thumler's Model B tumbler motor. The Model B pulley has a 5/16" bore diameter and 3/4" outside diameter.
Thumler's Model B Tumbler Motor - Low Speed (Rock Tumbling)
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.
Thumler's Model B Tumbler Motor - High Speed (Brass Tumbling)
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.