Bearing Diagrams – VMX

Stainless Roller Bearing with Plastic Combination Retaining Washers

Stainless roller bearings combined with plastic retaining washers are often chosen for caster assemblies because this pairing offers a blend of durability, corrosion resistance, noise reduction, and maintenance benefits:

Corrosion Resistance:
Stainless steel bearings are far more resistant to moisture, chemicals, and corrosive elements than standard carbon steel. In environments where the caster might be exposed to water, cleaning agents, or chemical spills—such as in food processing facilities, labs, or outdoor settings—stainless bearings maintain smoother operation over a longer lifespan.

Extended Service Life:
By using stainless bearings, you reduce the risk of pitting and rust-related wear. This ensures the rolling elements keep their designed tolerances and contact surfaces intact, prolonging the life of the caster and reducing downtime for repairs or replacements.

Lower Rolling Resistance and Consistent Performance:
Stainless bearings tend to roll smoothly, and the addition of plastic combination retaining washers helps maintain the correct alignment of bearing components. This ensures consistent, low-friction rotation, making it easier to move carts or equipment, which translates into energy and time savings.

Noise Reduction:
Plastic washers serve as a buffer between metal components, reducing direct metal-on-metal contact. This diminishes rattling, squeaking, or grinding noises, which is particularly valuable in environments where quiet operation is important (e.g., hospitals, offices, or residential complexes).

Shock Absorption and Vibration Dampening:
The use of plastic in the washer can help absorb minor shocks or jolts. This can smooth out the rolling motion and protect sensitive loads carried on the caster.

Simplified Maintenance:
Plastic washers often require less or no lubrication compared to an all-metal assembly, and their corrosion-inert nature means they don’t seize up as easily. The lower maintenance demand frees up resources and reduces overall operational costs.

In sum, stainless roller bearings paired with plastic combination retaining washers offer a strong balance of longevity, smooth performance, corrosion resistance, and decreased noise—key characteristics that make them a preferred choice for high-quality caster solutions.