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Bearings • Roller Bearings

Roller bearings is a type of rolling element bearing. They use cylinders that are greater in length than the diameter. Relative to ball bearings, roller bearings have higher radial load capacity. They have low axial load capacity and higher friction. Also in comparison to ball bearings, the bearing capacity of roller bearings can decrease at a faster rate if the inner and outer races are not aligned properly. Common types of roller bearings include cylindrical, spherical, tapered, and needle. They are ideal for heavy-duty and moderate-speed functions. But cylindrical bearings have lower speed capabilities.

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  • NTN Bearing Corp. of America

    NTN is a manufacturer of roller bearings, including cylindrical, tapered, needle, spherical, and combined ball and roller bearing units. NTN cylindrical types are designed for heavy radial loads and can tolerate light thrust loads. For high speed applications a machined brass cage is used. Double row configurations are available. Their tapered roller bearings come in inch and metric sizes and can carry combinations of radial and thrust loads simultaneously. NTN's Endurance Tapered design uses a carburized steel to increase life span. Needle types feature a smaller cross section, high load capacity, and are available in a variety of sizes. They are offered in single or double row, solid or split cage, and metric or inch sizes. Yoke and stud type track rollers are available. NTN's spherical designs are self aligning and are designed for heavy radial loading.

  • Bearing Service Co.

    Bearing Service Company is a manufacturer of ball, roller, radial and thrust bearings. They specialize in primary metal applications. Leveler back-up roll and thrust blocks are equipped with a seal on each end. Their ISO-API approved facility manufactures products up to 60 inches in diameter and can can also manufacture low volume, specialty and obsolete bearings.

  • Taylor Hobson Limited

    Taylor Hobson is a technology company offering products for many applications, including cylindrical, spherical and taper roller bearings. Their cylindrical roller bearings are suitable for high speeds and have high radial load carrying capacity. The cross sectional shape of the track and rollers have a barrel type shape with a large radius. Their spherical roller bearings are internally self aligning, support high radial loads, and include heavy support rollers. Taylor Hobson taper designs carry combinations of large radial and thrust loads. The difference between inner and outer raceway contact angles drives the tapered rollers against the flanged guide, making them unsuitable for high speed applications.

  • WD Bearing

    WD, located in China, is a manufacturer of their own line of roller bearings. Their needle designs come in many configurations, including drawn cup needle, radial needle and cage assemblies, radial needle and cage assemblies for pin of connecting rod, heavy duty needle, track roller, inner ring, and axial needle roller and cage assemblies. WD spherical roller bearings are designed for heavy loading and feature double row spherical rollers that are self aligning in the groove of the outer ring. Thrust spherical designs are available. Taper types can bear heavy axial and heavy radial loads, and come in metric and inch sizes. WD also offers their SL Series cylindrical design.

  • THK America, Inc.

    THK offers The Cross Roller Ring roller bearing with high rotation accuracy capable of bearing loads in every direction (due to orthogonally arranged cylindrical rollers). Configurations include inner ring rotation only, both inner and outer ring rotation, and outer ring rotation only.