Colson Performa Wheel 4 x 1-1/2

Performa wheels offer the advantages of both hard and soft tread materials in a single wheel. Like a hard tread wheel, Performa rolls easily and is very durable. Like a soft tread wheel, it rolls quietly, protects floors and resists impacts with a cushion ride. It also features maximum weatherability, low temperature flexibility, resistance to chemicals, water and steam, and rejects floor debris such as metal shavings. Non-marking thermoplastic elastomer tread is permanently bonded to durable polyolefin wheel core. The rubber is 65 ±5 Durometer Shore A scale. No keyway is provided in these wheels, depending on your application, you may need to add a keyway yourself.Some of the smaller wheels come with a seperate bearing to be added for use as a freewheel. -At no extra charge! O.D. 4" Width 1 1/2" Bore 1 3/16" Bore length 1 5/8" Capacity 325lbs Weight 7.75oz Color Grey Bearing Included? No