Thumler's Model A-R2 Belt
Replacing a broken or worn out A-R2 belt is easy and no tools are required for the job. It is a good idea to have an extra belt lying around in case a belt breaks in the middle of tumbling a batch of rough.
A-R2 Tumbler Bearings
Thumler's A-R2 bearings are made of durable polyethylene. Bearings are simple to replace. Remove the retainer clip, slide the old bearing off, put the new one on, and replace the retainer clip. We suggest purchasing some extra retainer clips just in case one gets damaged.
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 A-R2 Barrel Guides
Thumler's A-R2 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 Tumbler Nylon Roller
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. Roller replacement is simple - just remove the old rollers from the idler shaft, and slide the new rollers into their place.
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.
Thumler's A-R2 Drive Pulley
A replacement pulley for the drive shaft of your Thumler's A-R2 rotary tumbler. It can also be used on any of the following tumblers: Thumler's MP-1, A-R1, A-R6, A-R12, Model B, Model T, and Model T2.
Thumler's A-R2 Tumblers Drive Shaft
A replacement drive shaft for the Thumler's A-R2 rotary tumbler. Easily replaced; just remove the belt, remove the old shaft, snap the new one in, and put the belt back on. Includes all parts: Shaft, pulley, bearings, rubber rollers and retainer clips.
Thumler's A-R2 Idler Shaft
A complete idler shaft for the Thumler's Model A-R2 rotary tumbler. This shaft has all of the necessary components and is fast and easy to replace.
Thumler's A-R2 Barrel Lid
This plastic barrel lid is for Thumler's A-R2 three-pound barrels. It also fits Models A-R1, MP-1 and Model T barrels.
Thumler's A-R2 Barrel Retaining Ring
A rubber retaining ring used to secure the lid on a Thumler's A-R2 three-pound barrels. Also fits Models A-R1, MP-1 and Model-T barrels.
Thumler's A-R2 Barrel
This is a three-pound capacity barrel designed to fit Thumler's Model A-R2 rock tumbler. It is also the same barrel used on the Model A-R1, and Model T rock tumblers. It is a complete barrel with the retaining ring and plastic lid. TIP: Purchasing an extra barrel for the polish step will reduce the chance of contamination from the larger grit steps.
| Barrel Dimensions in Inches |
| |
Height |
Diameter |
| Inside (usable space) |
3 7/8 |
4 1/4 |
| Outside |
4 1/4 |
5 |
Metal Base for Thumler's Model A-R2
This is the metal base for your tumbler. There are two pairs of slots to hold drive and idler shafts. This is the base only, and does not include any other parts.
A-R2 Tumbler Motor Pulley
This pulley fits the motor on all A-R model Thumler's Tumbler. This Thumler's A-R2 pulley has a 1/4" bore diameter and 3/4" outside diameter. A 2mm allen wrench is needed to adjust or install pulley.
Thumler's A-R2 Tumbler Motor and Pulley
This Thumler's A-R2 rock tumbler motor is thermally protected. It will automatically shut off if it gets too hot. This motor is very easy to attach and get back to tumbling.
Thumler's A-R2 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-mounting brackets. A 9mm wrench is needed to intsall.
A-R2 Rock Tumbler
Thumler's A-R2 tumbler is a two barrel rotary rock tumbler. Each barrel will process about two pounds of rough material into beautiful polished gemstones. More Information
Thumler's Model A-R2 Rotary Tumbler Parts Diagram
The above AR-2 parts diagram has the components numbered to help you know what part or parts you need. 1) Barrels, 2) Barrel Lids, 3) Barrel Retaining Rings, 4) Motor, 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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