Ball Bearing Components by MBP-Bearings.com

Ball bearings are comprised of four major parts: a large ring (outer ring), a small ring (inner ring), balls between the rings (steel balls), and a cage to prevent the balls from hitting each other.

The modern structure dates back to around 1500, when Leonardo da Vinci invented ball bearings to reduce friction against the axles of horsedrawn carts. For more than 500 years, the ball bearing has been defined by this simple structure.

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MBP BEARINGS PVT. LTD.
902/290, SHALIMAR INDUSTRIAL AREA,
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Tips on How to Pick Wheel Bearings?

1. Precision Ball Bearings

Our most popular bearings are best suited for applications that require rolling ease, but where side thrust isn’t a critical factor. Pre-lubricated and sealed at the factory, they reduce maintenance costs because greasing isn’t needed. Double-sealed precision ball bearings feature steel-reinforced rubber seals securely fastened to a groove on the ring of both sides of the bearing.

2. Shielded Stainless Steel Ball Bearings

These bearings prevent rust and improve rollability in our stainless steel and solid urethane wheels. Can be custom spec’d in various sizes and configurations – including flanged, sealed square bores, extended inner raceways, and wide inner raceways with self-locking collars.

3. Precision Tapered Bearings

Recommended for heavy duty and power-towed applications, tapered bearings handle the most severe downward and side forces. Used in various wheels and swivel assemblies, they come in pairs – one on each hub side. Each consists of a cup (hardened and ground outer raceway) and cone (roller assembly). They extend overall wheel hub length by about ¼ of an inch.

 4. Plastic Bearings

For environments detrimental to metal bearings, acetyl resin bearings offer chemical and corrosion resistance. Delrin is standard in certain wheels, as either a sleeve or flange type bearing. Spherical bearings can be custom machined and installed in most other Hamilton wheels. Note: flange type bearings extend actual hub length of wheel by about 3/16 of an inch.

5. Oilless Sleeve Bearings
A sleeve, usually of sintered iron or oil-impregnated bronze, is press-fit into the wheel bore. While these bearings lack the rolling ease that anti-friction bearings provide, they are practical for light loads or applications where re-lubrication is a problem. (A light application of oil or graphite improves rollability and extends bearing life.)

6. Special or Custom Bearings

While standard bearings can handle most applications, some jobs may require bearings with special features, or a custom-engineered solution. For example, alloy bronze and ferrous alloy bearings withstand high heat. Teflon impregnated bronze bearings are self lubricating and roll in harsh environments. Roller clutch bearings allow a wheel to roll in only one direction and square bearings allow wheels to roll on a square shaft.