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Thumler's Rock Tumbler Parts


Click on a tumbler to see a list of available parts.






Rock Tumbler Supplies
Rock Tumbler Supplies
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Belt for Thumler's Model T and MP-1 tumbler

Thumler's Model MP-1 & Model-T Belt


Only $5.99
Replacing the belt on a Thumler's MP-1 and Model-T Tumblers is an easy job that can be done without tools. Just lift the drive shaft with the pulley off of the frame, slip the belt over the pulley, replace the drive shaft and stretch the belt over the motor pulley.
Belt for Thumler's tumblers

Model A-R1, A-R2, A-R6, A-R12 and Model B Belt


Only $6.99
Replacing the belt on a Thumler's Tumbler is an easy job that can be done without tools. Just lift the drive shaft with the pulley off of the frame, slip the belt over the pulley, replace the drive shaft and stretch the belt over the motor pulley.
Thumler's MP_1 tumbler bearings

Thumler's MP-1 Bearings


Four for $6.99
Thumler's MP-1 bearings are simple to replace. Lift up the shaft, slide off the old bearings, and put on the new ones.
Thumler's tumbler bearings

Thumler's Tumbler Bearings


Four for $7.99
Thumler's bearings are made of polyethylene. These bearings fit all Thumler's tumblers except for the MP-1 Tumbler.
3-in-one oil

Stop Squeaky Bearings


Only $4.99
We oil our Thumler's Tumblers every 30 days (or after each batch of rocks) with 3-IN-ONE Multi-Purpose Oil or SAE20 motor oil. Only one drop on each bearing. See our article for photos and detailed instructions.
oil-dispensing-bottle

Needle-Tip Oil Bottle


$3.99 Each
Have your own SAE20 motor oil or general purpose oil? Use one of these needle-tip bottles to accurately dispense it on tumbler bearings and motors. Keep your tumbler running smooth and quiet.
Thumler's MP-1 drive shaft

Thumler's MP-1 Drive Shaft


Only $15.99
This is a complete drive shaft for Thumler's MP-1 rock tumbler. It comes with all rollers, drive pulley and new bearings.
Thumler's MP-1 idler shaft

Thumler's MP-1 Idler Shaft


Only $7.99
This is a complete idler shaft for Thumler's MP-1 rock tumbler. It comes with all rollers, barrel guides, retainer clips and new bearings.
Thumler's AR1 and AR6 tumbler drive shaft

Thumler's A-R1, A-R6 and Model T Drive Shaft


Only $17.99
A replacement drive shaft for Thumler's Model T, A-R1 and A-R6 rotary tumblers. An easy part to replace and it comes with everything already on the shaft.
Thumler's AR1 and AR6 tumbler idler shaft

Thumler's A-R1, A-R6 and Model T Idler Shaft


Only $10.99
A replacement idler shaft for the Thumler's Model T, A-R1 and A-R6 rotary tumblers. Includes: Shaft, nylon rollers, bearings, barrel guides and retainer clips. This part can be replaced quickly and easily without any tools.
Thumler's AR2, AR12, and T2 tumbler drive shaft

Thumler's A-R2, A-R12, and T2 Drive Shaft


Only $19.99
A replacement drive shaft for the Thumler's A-R2, A-R12, and T2 rotary tumblers. This is a complete drive shaft with all components needed to get back to tumbling.
Thumler's AR2, AR12, and T2 tumbler idler shaft

Thumler's A-R2, A-R12, and T2 Idler Shaft


Only $14.99
A complete idler shaft for the Thumler's A-R2, A-R12, and T2 rotary tumblers. Simple to replace, pull out the old shaft, snap the new one in place and that is it. Comes with: shaft, rollers, bearings, retainer clips and barrel guides.
Thumler's Model B tumbler drive shaft

Thumler's Model B Drive Shaft


Only $24.99
A replacement drive shaft for the Thumler's Model B rotary tumbler. This is a complete shaft that includes: shaft, rubber rollers, bearings, pulley and retainer clips. It is a simple piece to change without any tools.
Thumler's Model B tumbler idler shaft

Thumler's Model B Tumbler Idler Shaft


Only $17.99
A complete, ready-to-use replacement idler shaft for the Thumler's Model B rotary tumbler. Easy to replace, just lift out the old shaft, snap the new one in place, and you are finished. Includes: shaft, retainer clips, bearings, rubber rollers, and barrel guides.
Rubber roller for Thumlers tumblers drive shaft

Thumler's Rubber Roller


2 for $3.99
3 for $4.99
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.
Nylon rollers for Thumlers tumblers idler shaft

Thumler's Tumbler Nylon Roller


2 for $3.99
3 for $4.99
After years of use, the nylon rollers on the idler shaft may 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 nylon guides

Thumler's Barrel Guides for A-R Tumblers


2 for $3.99
These barrel guides fit all A-R models of Thumler's tumblers and are simple to replace. Remove the retainer clip from the shaft, take off the bearing and guide, slide on a new guide then replace the bearing and retainer clip. We suggest purchasing some extra retainer clips just in case you damage one.
Thumler's Model B barrel guides

Model B Tumbler Barrel Guides


2 for $3.99
Constructed of polyethylene, Thumler's Model B tumbler barrel guides are very durable. These guides don't need to be replaced often, but when they do, it is an easy job. Purchasing extra retainer clips is a good idea in case you damage one while removing it to change out the guide.
Thumler's tumbler retainer clips

Thumler's Shaft Retainer Clips


4 for $3.99
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.
Drive pulley for Thumler's drive shaft

Thumler's Drive Pulley


Only $8.99
This pulley fits on the drive shaft of Thumler's rotary tumblers. It can be used for any of the following tumblers: Thumler's MP-1, A-R1, A-R2, A-R6, A-R12, Model B, Model T, and Model T2.
Thumler's 3lb barrel lid

Thumler's 2-Pound and 3-Pound Barrel Lid


Only $5.99
This is the plastic lid for the Thumler's Tumbler three-pound and two-pound barrels. Fits the barrels on Thumler's Models MP-1, Model-T, A-R1 and A-R2.
Thumler's 3lb barrel retainer ring

Thumler's 2-Pound and 3-Pound Barrel Retaining Ring


Only $5.99
This is the rubber retaining ring that is used to secure the lid on a Thumler's Tumbler two-pound and three-pound barrel. These barrels are on Thumler's Models A-R1, A-R2, Model-T and MP-1.
Thumler's A-R6 barrel lid

Thumler's A-R6 Lid


Only $7.99
This plastic lid is designed for Thumler's A-R6 nine-pound barrel.
Thumler's A-R6 barrel retainer ring

Thumler's A-R6 Retaining Ring


Only $6.99
This retaining ring is used to secure the lid on a Thumler's A-R6 nine-pound barrel. Note: This new retaining ring will appear much smaller than the one that you're replacing. That's because it hasn't been stretched out yet. We made a video to show you how we get it to fit.
Thumler's 12lb barrel lid

Thumler's A-R12 12-Pound Barrel Lid


Only $8.99
This is Thumler's Model A-R12 barrel lid. If you need a new retainer ring, it will need to be purchased separately.
Thumler's 12lb barrel retainer clamp

Thumler's 12-Pound Barrel Retaining Clamp


Only $7.99
A metal retaining clamp that makes the watertight seal on Thumler's A-R12 tumbler barrel. An 8mm wrench is needed to install.
Thumler's Model B barrel lid

Thumler's 15-Pound Barrel Metal Lid


Only $15.99
This is the metal lid for Thumler's Model B fifteen-pound barrel.
Thumler's Model B barrel lid gasket

Thumler's 15-Pound Barrel Gasket


Only $12.99
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"
Model B barrel rubber liner and gasket

Thumler's Model B Barrel Liner and Gasket


Only $79.99
Replacement rubber liner and gasket for Thumler's Model B tumbler barrel.
Thumler's Model B barrel lid wingnuts

Thumler's Model B Barrel wing nuts


Only $4.99
A set of 6 wing nuts to tighten the lid on Thumler's fifteen-pound Model B barrel.
Thumler's Model B barrel lid washers

Thumler's Model B Barrel Washers


Only $2.99
A set of 6 washers for under the wing nuts on Thumler's fifteen-pound Model B barrel.
Thumler's 2lb tumbler barrel

Thumler's 2-Pound Barrel


Only $24.99
This is a two pound capacity rubber barrel that fits the Thumler's Model MP-1 rock tumbler. It includes the soft rubber barrel, lid and sealing ring. TIP: Get an extra barrel and dedicate it to the polishing step. This significantly reduces the possibility of grit contamination.

Barrel Dimensions in Inches
  Height Diameter
Inside (usable space) 2 5/8 4 1/4
Outside 3 5

Thumler's 3lb tumbler barrel

Thumler's 3-Pound Barrel


Only $38.99
This is a three pound capacity rubber barrel that fits the Thumler's Model A-R1, Model A-R2, and Model T rock tumblers. It includes the soft rubber barrel, lid and sealing ring. TIP: Get an extra barrel just for the polishing step. This significantly reduces the possibility of grit contamination.

Barrel Dimensions in Inches
  Height Diameter
Inside (usable space) 3 7/8 4 1/4
Outside 4 1/4 5

Thumler's 9lb tumbler barrel

Thumler's 9-Pound Barrel


Only $109.99
Here is a nine-pound capacity barrel to fit the Thumler's Model A-R6 rock tumbler. It includes the soft rubber barrel, the lid, and retainer ring.

Barrel Dimensions in Inches
  Height Diameter
Inside (usable space) 4 7
Outside 4 1/2 8

Thumler's 12lb tumbler barrel

Thumler's 12-Pound Barrel


Only $189.99
This is a complete, ready to use, A-R12 rock tumbler barrel. It is a 12-pound capacity rubber barrel with a hard plastic lid and metal retainer ring.

Barrel Dimensions in Inches
  Height Diameter
Inside (usable space) 7 3/8 5 3/4
Outside 8 1/4 8 5/16

Thumler's 15lb tumbler barrel

Thumler's 15-Pound Barrel


Only $189.99
A 15-pound capacity tumbler barrel designed for the Thumler's Model B rock tumbler. It includes the metal frame, metal lid, soft rubber insert, lid gasket, wing nuts and washers.

Barrel Dimensions in Inches
  Height Diameter
Inside (usable space) 8 1/4 6 1/2
Outside 9 9 1/8
Outside height includes washer and wing nut.

Thumler's Mini Bowl vibratory bowl

Thumler's 4-Pound UV Mini Bowl Bowl


Only $69.99
This 4-pound capacity bowl is designed for use with a Thumler's UV Mini Bowl vibratory rock tumbler. It is a complete bowl including the lid and lid pad. Washers and wing nuts sold separately. Not recommended for use on Thumler's UV-10 Industrial.

Recommended Reading:

How to Make Your Vibratory Bowl Last a Long Time

UV Mini Bowl Tumbler Bowl Dimensions
Exterior Dimensions Height: 3 1/2 inches Diameter: 8 1/2 inches
Lid Dimensions Diameter: 5 1/2 inches Height (with foam): 3/4 inch
This bowl can process approximately 4 pounds of material.
Rough Size: One dimension of the rough must be less than 1 5/8 inches to fit into the bowl. The other dimension should not be more than 2 1/2 inches.

Thumler's 10lb vibratory barrel

Thumler's 10-Pound UV-10 Bowl


Only $119.99
This bowl fits the Thumler's UV-10 vibratory rock tumbler. It has a ten pound capacity. Included are the bowl, lid and lid pad. Washers and wing nuts sold separately.

Recommended Reading:

How to Make Your Vibratory Bowl Last a Long Time

UV-10 Industrial Bowl Dimensions
Exterior Dimensions Height: 4 1/4 inches Diameter: 10 inches
Lid Dimensions Diameter: 8 inches Height (with foam): 7/8 inch
This bowl can process approximately 10 pounds of material.
Rough Size: One dimension of the rough must be less than 2 1/8 inches to fit into the bowl. The other dimension should not be more than 3 inches.

Thumler's 18lb vibratory bowl

Thumler's Bowl for the UV-18 Tumbler

Only $159.99
This bowl fits the Thumler's UV-18 vibratory rock tumbler. It has an eighteen pound capacity. Included are the bowl, lid, and lid pad. Washers and nuts sold separately.

Recommended Reading:

How to Make Your Vibratory Bowl Last a Long Time

UV-18 Industrial Bowl Dimensions
Exterior Dimensions Height: 4 3/4 inches Diameter: 11 1/2 inches
Lid Dimensions Diameter: 8 1/2 inches Height (with foam): 1 1/8 inch
This bowl can process approximately 18 pounds of material.
Rough Size: One dimension of the rough must be less than 2 7/8 inches to fit into the bowl. The other dimension should not be more than 3 1/2 inches.

Thumler's A-R motor pulley

A-R Tumblers Motor Pulley


Only $7.99
This pulley fits the motor on all A-R model Thumler's Tumblers. The Thumler's A-R pulley has a 1/4" inside diameter and 3/4" outside diameter.
Thumler's model B motor pulley

Model B Motor Pulley


Only $7.99
This pulley fits Thumler's Model B tumbler motor. The Model B pulley has a 5/16" inside diameter and 3/4" outside diameter.
Thumler's keps nuts

Thumler's Motor Mounting Nuts


2 for $2.99
Two keps nuts (nuts with attached, free spinning, star-shaped lock washers) are used to keep the motor in place. For Thumler's Model MP-1, Model T, and Model T2: The nuts screw onto the two motor-mounting bolts where they extend through the motor housing, one on each side of the opening where the motor's drive shaft protrudes. For Thumler's Models A-R1, A-R2, A-R6, A-R12, and Model B: The nuts screw onto the two motor-mounting bolts where they extend through the motor-mounting brackets. A 9mm wrench is needed to install.
Thumlers MP-1 tumbler motor

Thumler's MP-1 Tumbler Motor


Only $49.99
This small, light-duty motor fits Thumler's MP-1 Tumblers. Includes motor, power cord, and pulley.

Thumlers tumbler motor

Thumler's A-R Model Tumbler Motor


Only $119.99
This thermally protected motor includes the pulley and fits all Thumler's AR series tumblers. It will automatically shut off if it gets too hot. 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 $149.99
This is the low-speed (1550 rpm) replacement motor designed for rock tumbling in Thumler's Model B rock tumbler and includes the pulley. It is a thermally protected motor that will shut off automatically if it gets too hot. Easy to replace: just remove the belt and 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)


We don't know when this motor will be available.More Information
This is the high-speed (3000 rpm) replacement motor designed for brass tumbling in Thumler's Model B tumbler. It is a thermally protected motor and comes with the pulley. Easy to replace: just remove the belt and mounting screws, and replace. This motor does not fit other tumblers.

Thumlers UV 10 Mini bowl vibratory tumbler motor

UV Mini Bowl Vibratory Tumbler Motor


We don't know when this motor will be available.More Information
This motor is used on Thumler's UV Mini Bowl tumbler. It is thermally protected to shut off under too much of a load to prevent overheating. Motor purchase includes the counterweight.

Thumlers UV 10 vibratory tumbler motor

Thumler's UV-10 (Industrial) Tumbler Motor


Only $179.99
This replacement motor includes the counterweight and fits Thumlers industrial UV-10 vibratory rock tumbler. It is thermally protected and will shut off automatically if it gets too hot. This motor does not fit other tumblers.

Thumler's Ultra-Vibe replacement feet

Thumler's Ultra-Vibe Feet and Bolts


Only $7.99
A set of 3 replacement feet and bolts for Thumler's UV Mini Bowl, UV-10, UV-18, and UV-45 vibratory rock tumblers.
Thumler's UV-10 replacement washer

Thumler's UV-10 and UV Mini Bowl Washer


Only $3.99
This washer with a soft rubber pad can be used to hold the bowl or the lid. Fits both Thumler's UV-10 Industrial and UV Mini Bowl tumblers. This price is for one washer.
Thumler's UV-10 Mini Bowl lid foam pad

Thumler's UV Mini Bowl Lid Foam Pad


Only $7.99
A replacement foam pad that sticks to the bottom of the UV Mini Bowl's 4-pound bowl lid.
Thumler's UV-10 LID foam pad

Thumler's UV-10 Bowl Lid Foam Pad


Only $8.99
A replacement foam pad that sticks to the bottom of the bowl's lid.
Thumler's UV-10 foam pad

Thumler's UV-10 Base Foam Pad


Only $8.99
A replacement foam pad that sticks to the machine underneath the bowl.
Thumler's UV-10 Mini Bowl threaded Center Post

UV Mini Bowl Tumbler Threaded Center Post


Only $9.99
Replacement post for Thumler's UV Mini Bowl vibratory tumbler. It comes with the locknut that goes under the plate and the regular nut for above the plate. An 11mm wrench is needed to install.
Thumler's UV-10 wing nut for threaded Center Post

UV-10 and UV Mini Bowl Wing Nut


Only $.99
This wing nut fits the center post on Thumler's UV-10 industrial and UV Mini Bowl vibratory tumblers. It works for both holding the bowl down and the lid.
Thumler's UV-10 threaded Center Post

UV-10 Industrial Tumbler Threaded Center Post


Only $10.99
This replacement center post is for Thumler's UV-10 vibratory tumbler. It comes with both the locknut for under the plate and the regular nut for above the plate. An 11mm wrench is needed to install.
Thumler's UV-18 lid washer

Thumler's UV-18 Lid Washer


Only $3.99
This is the smaller of the two washers on a Thumler's UV-18. It comes with a rubber pad attached and is used to hold the lid down to the bowl.
Thumler's UV-18 bowl washer

Thumler's UV-18 Bowl Washer


Only $3.99
This is the larger of the two washers on a Thumler's UV-18. It comes with a rubber pad attached and is used to hold the bowl down to the plate.
Thumler's UV-18 wing nut for threaded Center Post

UV-18 Wing Nut for Threaded Center Post


Only $1.99
This wing nut is used to hold the lid down on a UV-18 Bowl. The bowl washer for under this wing nut is sold separately.
Thumler's UV-18 bowl nut

UV-18 Bowl Nut and Star Washer


Only $1.99
This bowl nut and star washer are used to hold the bowl down. The large padded washer that goes underneath these is sold separately above. A 14mm wrench is needed to install.
Thumler's UV-18 LID foam pad

Thumler's UV-18 Bowl Lid Foam Pad


Only $9.99
A replacement foam pad that sticks to the bottom of the bowl's lid.
Thumler's UV-18 foam pad for base

Thumler's UV-18 Foam Base Pad


Only $9.99
A replacement foam pad that sticks to the machine underneath the bowl.
Rock Tumbler Supplies
Rock Tumbler Supplies
Rock tumbler grit Rock tumbler rough Rock tumbling media Rock tumbler grit Rock tumbler rough Rock tumbling media Rock Tumbling Supplies