Bushing Press Fit Tolerance Chart

Adapting to many situations holding parts in perfect alignment easily introduced but forming a lasting bond i could either be describing press fits or your favorite pair of jeans.

Bushing press fit tolerance chart. Wobble or shake between mating parts very slight. This table is applicable to cast iron and steel housings. Bushings are available in standard sizes with both inside and outside diameters surfaces finished and are commonly available in many sizes. Ball bearings high speed centrifugal compressor fixed bearings cylindrical roller bearings for machine tool main spindle electrical home appliances remarks 1.

For housings made of light alloys the interference should be tighter than in this table. Holes for thinwall bushings must be very accurate and round because these bushings are more easily distorted. Class ii free fit running fits with speeds of 600 r p m. The truth is press fits aren t for every application just like skinny jeans there are pros and cons.

In addition to the industry standard sizes we manufacture sleeve bearings to your specific size and tolerance requirements. Or over and journal pressures of 500 lbs sqin or over. Press fit or shrink fit bushing design and installation is a common method of retaining bearings by use of interference between the bushing and the bushing hole. Table 9 4 2 recommended housing fits for radial bearings classes 0 6x 6.

To avoid jig plate or bushing distortion do not use excessive interference fits on press fit bushings. Press fits have so many great features you might wonder why they don t replace all other connections. Part will turn and slide freely. The following tables are a guide for establishing shaft and bearing fits for miniature and instrument bearings when the expansion coefficients of the shaft and housing are similar or when the operating temperature differential between them is nominal.

Class iii medium fit running fits under 600 r p m and journal pressures under 600 lbs sqin and for sliding fits. Not applicable to special fits. 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. Plain bushings are also manufactured from various other customer specified alloys.

Bearing fit chart shaft and housing. For numerical values for standard tolerance grades it 5 and it 7 refer to supplementary table at end of this catalog. Remark this table is applicable to solid steel shafts.