W-6-SUB-1/2 6" Super-Flex Wheel with 1/2" ball bearings

6" x 2" Super-Flex Wheel
300 pound load rating*
1/2" ID sealed ball bearings
2-1/4" Hub length
An unusually rugged, industrial duty wheel that looks like a pneumatic,
but is puncture proof and provides superior cushioning.
Tires are extra soft (60 Shore A) Durometer, extra thick rubber
vulcanized to cast aluminum wheel centers.  Straight roller
bearings and lubrication fittings standard in the hubs.
*Since the capacity ratings do not take into account the rollability effort
required  on soft rubber tires, reduce the load rating by about
50% for manual operations.