10 Pack Rock Tumbler Replacement Drive Belts Compatible with Thumler’s A-R1 A-R2 A-R3 A-R6 A-R12 B#401 Tumblers, Heavy-Duty Buna-N Rubber O-Ring Belt Set for Rock Polishing Machines
Compatible with Multiple Thumler's Models：Designed for use with Thumler's A-R1, A-R2, A-R3, A-R6, A-R12, and B#401 rock tumblers. Please verify your original belt size and tumbler model before ordering.
10-Pack Replacement Belt Set：Includes 10 black rubber drive belt rings, giving you convenient backup parts for routine maintenance, repeated tumbling cycles, and long rock polishing projects.
Helps Restore Smooth Drum Rotation：A practical replacement for stretched, loose, cracked, or worn belts that may cause slipping, unstable rotation, or interrupted tumbler operation.
Heavy-Duty Buna-N Rubber：Made from Buna-N nitrile rubber material for flexibility, stable tension, and daily replacement use on compatible rock tumbler drive systems.
Check Fitment Before Purchase：Not a universal belt for every rock tumbler. Please compare your original belt size, shape, and machine model before placing an order.
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