Heavy Duty Roller bearings have a formed 1-piece outer sleeve that improves grease retention and strengthens the roller cage. They offer  the best balance between  capacity, and rollability.

Roller bearings are designed to be periodically lubricated and are typically held in place with a retaining washer at each end.

Heavy Duty Roller bearings have a formed 1-piece outer sleeve that improves grease retention and strengthens the roller cage. They offer  the best balance between  capacity, and rollability.

Roller bearings are designed to be periodically lubricated and are typically held in place with a retaining washer at each end.

Heavy Duty Roller bearings have a formed 1-piece outer sleeve that improves grease retention and strengthens the roller cage. They offer  the best balance between  capacity, and rollability.

Roller bearings are designed to be periodically lubricated and are typically held in place with a retaining washer at each end.

Delrin is a high-strength, wear resistant material with a low coefficient of friction. These bearings also offers good chemical resistance, can be steam cleaned, and have very low moisture absorption. Delrin flange bearings are used 1 pair per wheel, and common in most Stainless Steel casters.