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Five black rubber O-ring drive belts for KT-6808 KT-2000 tumblers

RTumbler, LLC

RTumbler, LLC Replacement Drive Belt 5 Pack KT-6808 KT-2000

SKU CH-5KVW-B7QQF

A five-pack of Buna nitrile O-ring belts replaces worn drive belts on KT-6808 and KT-2000 tumblers, staying pliable to -20 °F with a 15-year shelf life

  • Product colorBlack
  • Product typeScience
  • Age groupAdult
  • Suitable forUnisex
  • Five-pack keeps multiple tumblers running longer
  • Buna nitrile rings resist abrasion better than natural rubber
  • Belts stay pliable down to -20 °F for cold workshops
  • Smooth round design fits KT-6808 and KT-2000 models without teeth
  • 15-year shelf life means spares stay ready when needed

Replacement Belts for KT-6808 and KT-2000 Tumblers

This pack supplies five brand-new drive belts built for the KT-6808 3kg and KT-2000 5kg tumbler series. They also fit DKJ-6808 models. Hobbyists and small-shop operators who run these specific polishers can keep a spare set on hand without sourcing original factory parts. The smooth round profile replaces the toothed originals directly.

Thermals Noise and Power Draw

The belts are passive rubber components, so they add no heat, noise or electrical load to the machine. Made from Buna Nitrile, they stay pliable down to -20 F and resist abrasion better than natural rubber. A 15 year shelf life means stored spares remain ready for use. Normal operation simply transfers motor torque to the barrel without extra draw.

Smooth Round Profile Without Teeth

These belts have no teeth; they rely on a smooth round cross-section to grip the pulleys. Buyers whose tumblers require a toothed or timing-style belt will find these incompatible. The design works with the listed KT and DKJ models, but any machine needing a different belt geometry cannot use this pack.

How it compares

Measured against everything we stock in STEM Kits & Building Blocks, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 93% of the 236 comparable items (median $28.99).

Specifications

Product
Product colorBlack
Product typeScience
More details
Age groupAdult
Suitable forUnisex

Questions about this item

How do I install the smooth round belt on my KT-6808 tumbler without stretching it over the motor pulley?

Loop the belt over the drum pulley first, then roll it onto the motor shaft while turning the drum by hand so the belt seats evenly without twisting.

When should I replace these Buna Nitrile belts if the tumbler runs several hours a week?

Plan on a new set when you see cracks, glazing or loss of tension — typically after a few years of regular use, well within the 15 year shelf life.

At what temperature do the belts start to stiffen and slip during long polishing runs?

The Buna Nitrile compound stays pliable down to -20 F, so cold-related stiffening is not a concern in normal workshop conditions.

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