Bearing Inner Ring Tolerance

Form tolerances for the bearing inner and outer ring raceways are included in these standards and are important to meet runout specifications.

Bearing inner ring tolerance. All points on one circle of the inner ring bore close to the face are measured during one revolution while the outer ring is stationary. Radial bearings with rotating outer ring load rotating inner ring load or direction of load indeterminate light loads or variable loads 0 06c r heavy loads or shock loads 0 13c r normal loads 0 06 to 0 13 cr electrical home appliances pumps blowers transport vehicles precision machinery machine tools general bearing applications. Tsia circular axial run out of inner ring face of assembled bearing with respect to datum i e. This tolerance ensures the bearing inner ring surface is close enough to a right angle with the inner ring face.

A comprehensive engineers reference source for radial ball bearings and thrust ball bearing. Abec 3 iso p6. 0 6x 6 5 4 and 2. Abec iso inner ring tolerances.

Radial runout of assembled bearing inner ring k ia single outer ring or inner ring width deviation. Dimensional accuracy is a measure of the bearing s external dimensions for example bore diameter d outer diameter d inner ring width b and outer ring width c. The tables in this section provide information about bearing tolerances seat tolerances and resultant fits these should enable you to determine easily the maximum and minimum values of fits when using iso tolerance classes for bearing seats and bearings with normal tolerances for the bore and outside diameter. The abma defines five main tolerance classes abec 1 abec 3 abec 5 abec 7 and abec 9.

Tolerance figures for face runout bore are only given for bearings of p5 and p4 precision grades. Axis established from the outer ring outside surface axial run out of inner ring of assembled. 30 chamfer dimensions chamfer dimensions for radial bearings excluding tapered roller bearings. Abec 1 iso normal.

Normal tolerances for axial bearings. Bearing tolerances refer to three aspects of accuracy. External dimensional accuracy machining accuracy and running accuracy. Form tolerances include the roundness taper runout parallelism and race radius of the raceway.

Bearing tolerances are standardized by classifying bearings into the following six classes accuracy in tolerances becomes higher in the order described. Abec bearings inner ring abec iso tolerances ball bearings from dynaroll technical information home technical info abec tolerances inner ring abec iso tolerances. Dimensions in inches mm inner ring tolerances inches mm type.