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Bearing Application Guides

One application guide for every bearing in the catalog, grouped by bearing type. Each guide states the duty the type is for, the machine positions and industries that specify it, what has to appear on the order — designation and suffixes, internal clearance or preload, sealing, cage, and the shaft and housing fits — mounting practice, and the duties where a different bearing type is the correct answer.

Ball Bearings

Radial load on a rotating shaft, with incidental axial load in either direction, at the highest speed and lowest friction of any radial rolling bearing. The guides cover dimension series, sealing, internal clearance and cage choice.

18 application guides

Angular Contact Ball Bearings

Combined radial and axial load where the axial component acts in one direction, taken by a bearing mounted against a second one. The guides cover contact angle, the DB/DF/DT arrangements and preload class.

14 application guides

Self-Aligning Ball Bearings

Shafts whose seats are not in line, or that deflect under load: the spherical outer raceway lets the inner ring and ball rows swivel. The guides cover cylindrical and tapered bores, adapter sleeve mounting and the limits of the alignment capability.

7 application guides

Cylindrical Roller Bearings

The highest radial capacity available in a given envelope, from line contact between roller and raceway. The guides cover the NU, NJ, NUP, N and NF rib arrangements, axial location, and what a full complement design costs in speed.

16 application guides

Tapered Roller Bearings

Heavy combined radial and axial load in one direction, carried by opposed pairs that are set on assembly. The guides cover cup-and-cone separability, endplay versus preload, and how the setting is measured.

7 application guides

Spherical Roller Bearings

The heaviest loads together with shaft deflection and misalignment, on two rows of barrel rollers running in a common spherical outer raceway. The guides cover bore form, sleeve mounting and clearance reduction during drive-up.

10 application guides

Needle Roller Bearings

Radial load in the smallest possible radial section, where the housing bore is fixed and there is no room for a ring of balls. The guides cover drawn cup and machined ring types, the hardened raceway the shaft has to provide, and the absence of any axial capacity.

12 application guides

Thrust Bearings

Pure axial load along the shaft axis, with a separate bearing carrying the radial load. The guides cover single and double direction arrangements, shaft and housing washer bores, assembled height, and sphered seating.

10 application guides

Insert Bearings & Housed Units

Shaft support bolted to a frame that has no machined housing bore: bearing, housing, seals and shaft locking supplied as one part. The guides cover housing style, setscrew, eccentric collar and adapter sleeve locking, and the speed and precision the arrangement gives up.

3 application guides

Linear Motion Bearings

Motion along a hardened round shaft rather than around it, on recirculating ball tracks. The guides cover closed, open and flanged bushings, shaft hardness and support, and the alignment two parallel axes require.

4 application guides

Plain & Spherical Plain Bearings

Sliding rather than rolling contact: high static load, oscillating motion, contamination and shock, in the smallest radial section. The guides cover spherical plain bearings, rod ends and cylindrical bushings, liner materials and the pv limit.

6 application guides

Bearing Accessories

The parts that locate, clamp and seal a bearing already chosen — lock nuts and lock washers, adapter and withdrawal sleeves, shaft seals. The guides explain how each is specified from the bearing it serves rather than from a rating of its own.

7 application guides

Ball Bearings

Radial load on a rotating shaft, with incidental axial load in either direction, at the highest speed and lowest friction of any radial rolling bearing. The guides cover dimension series, sealing, internal clearance and cage choice.

Angular Contact Ball Bearings

Combined radial and axial load where the axial component acts in one direction, taken by a bearing mounted against a second one. The guides cover contact angle, the DB/DF/DT arrangements and preload class.

Self-Aligning Ball Bearings

Shafts whose seats are not in line, or that deflect under load: the spherical outer raceway lets the inner ring and ball rows swivel. The guides cover cylindrical and tapered bores, adapter sleeve mounting and the limits of the alignment capability.

Cylindrical Roller Bearings

The highest radial capacity available in a given envelope, from line contact between roller and raceway. The guides cover the NU, NJ, NUP, N and NF rib arrangements, axial location, and what a full complement design costs in speed.

Tapered Roller Bearings

Heavy combined radial and axial load in one direction, carried by opposed pairs that are set on assembly. The guides cover cup-and-cone separability, endplay versus preload, and how the setting is measured.

Spherical Roller Bearings

The heaviest loads together with shaft deflection and misalignment, on two rows of barrel rollers running in a common spherical outer raceway. The guides cover bore form, sleeve mounting and clearance reduction during drive-up.

Needle Roller Bearings

Radial load in the smallest possible radial section, where the housing bore is fixed and there is no room for a ring of balls. The guides cover drawn cup and machined ring types, the hardened raceway the shaft has to provide, and the absence of any axial capacity.

Thrust Bearings

Pure axial load along the shaft axis, with a separate bearing carrying the radial load. The guides cover single and double direction arrangements, shaft and housing washer bores, assembled height, and sphered seating.

Insert Bearings & Housed Units

Shaft support bolted to a frame that has no machined housing bore: bearing, housing, seals and shaft locking supplied as one part. The guides cover housing style, setscrew, eccentric collar and adapter sleeve locking, and the speed and precision the arrangement gives up.

Linear Motion Bearings

Motion along a hardened round shaft rather than around it, on recirculating ball tracks. The guides cover closed, open and flanged bushings, shaft hardness and support, and the alignment two parallel axes require.

Plain & Spherical Plain Bearings

Sliding rather than rolling contact: high static load, oscillating motion, contamination and shock, in the smallest radial section. The guides cover spherical plain bearings, rod ends and cylindrical bushings, liner materials and the pv limit.

Bearing Accessories

The parts that locate, clamp and seal a bearing already chosen — lock nuts and lock washers, adapter and withdrawal sleeves, shaft seals. The guides explain how each is specified from the bearing it serves rather than from a rating of its own.