Thumler's MP-1 Belt
Replacing the belt on a Thumler's MP-1 tumbler is an easy job that can be done without tools. Lift the drive shaft off of the frame, slip the belt over the pulley, replace the drive shaft and roll the belt over the motor pulley.
Thumler's MP-1 Bearings
Thumler's MP-1 bearings are simple to replace. Lift up the shaft, slide off the old bearings, and put on the new ones.
Stop Squeaky Bearings
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.
Needle-Tip Oil Bottle
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 Barrel Guides
Thumler's MP-1 two-pound tumbler barrel guides are made of a durable nylon. You won't replace these often, but when you do it is easy to do. Remove the retainer clip, remove the bearing and old guide, slide on a new guide and replace the bearing and retainer clip. Purchasing some extra retainer clips in case you damage one is a good idea.
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 MP-1 Drive Pulley
This pulley fits the drive shaft of the Thumler's MP-1 rotary tumbler. It can also be used on any of these other tumblers: Thumler's A-R1, A-R2, A-R6, A-R12, Model B, Model T, and Model T2.
Thumler's MP-1 Drive Shaft
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
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 MP-1 Barrel lid
This plastic barrel lid is for Thumler's MP-1 two-pound barrel. It also fits the three-pound barrels on Thumler's Models A-R1, A-R2, and Model T tumblers.
Thumler's MP-1 Barrel Retaining Ring
A rubber retaining ring used to secure the lid on a Thumler's MP-1 two-pound barrel. Also fits Models A-R1, A-R2 and Model T barrels.
Thumler's MP-1 Tumbler Barrel
The Thumler's Model MP-1 rock tumbler barrel is a two pound capacity rubber barrel. This is a complete barrel so you don't need to buy any other barrel parts to use it. TIP: Getting a second barrel for the polishing stage is highly recommended to reduce the chance of larger grit contamination.
| Barrel Dimensions in Inches |
| |
Height |
Diameter |
| Inside (usable space) |
2 5/8 |
4 1/4 |
| Outside |
3 |
5 |
Thumler's MP-1 Tumbler Motor and Pulley
This is the small light-duty motor that fits Thumler's MP-1 Rock Tumblers. It comes with the motor, pulley, and power cord.
Thumler's MP-1 Motor Mounting Nuts
Two keps nuts (nuts with attached, free spinning, star-shaped lock washers) are used to keep the motor in place. They 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. A 9mm wrench is needed to install.
MP-1 Tumbler and Supplies
This is a complete 2-pound rotary tumbler kit. It contains the tumbler plus enough grit, polish and rough to run one batch of stones. It also comes with jewelry findings to use with the finished stones. More Information
Thumler's Model MP-1 Rotary Tumbler Parts Diagram
The above MP-1 parts diagram has the components numbered to help you know what part or parts you need 1) Barrel, 2) Barrel Lid, 3) Barrel Retaining Ring, 4) Motor (in housing), 5) Motor Pulley, 6) Belt, 7) Drive Shaft, 8) Idler Shaft, 9) Bearings, 10) Rubber Rollers, 11) Nylon Rollers, 12) Barrel Guides, 13) Shaft Retainer Clips.
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