Bearing the substitution method

(1) direct substitute w ww.nskbearing-china.com All Kinds Of Parameter Of NSK Bearing


This is to use bearing can be installed without processing. If use o-level, senior generation lower precision level. Also can use the same type, same size and different structural type of bearing. The alternative is not economic, not should not be used under special conditions. In addition, under the condition of load and speed promised, available substitute is the same size of the different types of bearing, such as type 36000 and type 16000 substitute each other; Also can use type and the same size and contact Angle different bearing substitute each other, such as the type 36000 and type 46000 substitute each other: piecemeal approach may also be used to substitute, such as 292218 bearing (no inner ring), can use 42218 or 32218 bearing descendants down to the inner ring with (down to the inner ring with 292218 bearing structure, the same size). When the selected alternative bearing, whether it's the same type or the same type, as long as them, outer diameter and width size and technical performance are exactly the same, does not need to make any changes, processing, can install substitute.

(2) set of

Alternative model with the original use model bearing width is the same, but different diameter (or diameter), set set of method can be used. If use 205 bearing more than 205 bearing, its outer diameter and width are the same, only the inner diameter of the 205 5 mm larger than 304, in 205 on the inner ring with a diameter of 25 mm, inner diameter of 20 mm, the width of 15 mm set, the 205 bearing can be used instead of 304 bearing. Nested set method includes: set inner sleeve, with coat and set set of inside and outside. Generally selected type alternative bearing the same with the original bearing diameter is the same to set coat, inside diameter, different inner diameter of the same set, three dimensions are not the same should be inside and outside set set, the thickness of small washer, make it meet the requirements of the original bearing size. Isolation bearing after substitute general use time is shorter, but can cope with, in use should be regularly check and filling oil. When the selected alternative is the original bearings, bearing width, diameter and inner diameter is greater than the original bearings, can set his inner circle in. The inner diameter of the inner sleeve size tolerance and the technical requirements and bearing inside diameter of the same. With alternative bearing inner sleeve should be slightly tight hole base system transition fit. Inner sleeve with 45 steel manufacturing, generally do not need to heat treatment can be used; When the selected alternative bearing is the bearing inside diameter, width, and the outer diameter is less than the original bearings, outer ring can be used with set. Coat outside diameter size tolerance and technical requirements and the same of the original bearing outside diameter. Coat with alternative bearing shaft basis of cooperation should be a little tight transition fit.

(3) using two sets of bearing substitute a bearing (and set of alternative)

Alternative bearing the same with the original with the bearing inner diameter, small half hour, but alternative bearing width available two nested pretended to be a substitute.