Caster Wheel Bearings

Precision Tapered Roller Bearings

Precision-Tapered-Roller-Bearings Ideal for heavy duty caster applications because their tapered faces will handle any combination of downward and side forces. Used in various swivel assemblies as well as in wheels. Two bearings are installed per wheel, one in each side of the hub, consisting of a cup (hardened and ground outer raceway) and cone (roller assembly). Spanner bushings are not employed since adjustment requires tightening caster legs against the bearing assembly. Tapered bearings extend overall hub length of the wheel itself by approximately 1⁄4”.

Delrin

Delrin (Registered DuPont trademark) Sometimes referred to as plastic or celcon. For environments detrimental to metal bearings, acetyl resin bearings offer chemical and corrosion resistance. Delrin® is a standard offering in certain wheels, as either a sleeve or flange type bearing. Plastic bearings can be custom machined and installed in most other wheels on request. Note: flange type bearings extend actual hub length of wheel approximately 3⁄16”.

Roller Bearings

Roller-Bearings Most popular anti-friction bearing for industrial equipment. Consists of a cage-type roller assembly, and an outer race that may be separate or integral see on page 103. We most often use hardened and ground steel roller bearings for maximum loads and life. (Note: plastic retaining washers or other components may be used unless we are advised of a high-heat application.)

Self Lubricating

Self-Lubricating A sleeve, usually of sintered iron or oil-impregnated bronze, is press-fit into the wheel bore. Lacks the ease of movement anti-friction bearings provide, but practical for light loads where re-lubrication is a problem. (A light application of oil or graphite improves rollability and extends bearing life.)


Plain Bore

The term applied to running, machine bored wheels, directly on an axle; hence, the absence of a bearing. Suitable for light or seldom moved loads, where ease of starting and rolling is not too important or where price is a dominant factor. Except for roller bearing bores, we normally machine “plain bore” wheels 1⁄64“ oversize for good running fit. Closer tolerance machining available at extra cost.

Ball Bearings

Ball-Bearings The standard ball bearings referred to in this catalog are the unground radial type, intended for light to medium duty service. on special order we can supply light or heavy duty precision ball bearings for both radial and thrust loads, in configurations including flanged, sealed, square bores, extended inner raceways, and wide inner raceways with self-locking collars.

Precision Ball Bearings

Precision-Ball-Bearings This type of bearing consists of a hardened outer raceway and inner raceway, separated by a concentric ring of hardened steel balls. This bearing is used in pairs and is usually press fitted into a deep pocket of a wheel that has high load, and high speed capabilities. This type of bearing is primarily used to carry radial loads only.

 

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