Combination of needle roller bearing is introduced in detail
For combined needle roller bearing product accuracy requirements including the following aspects:
1, according to JB/T8877 dimensional tolerance and geometric accuracy.
2, needle difference each other in 2 microns in diameter, precision grade (gb GB309) for G2 stage.
3, without inner ring inscribed circle diameter in line with the F6 tolerance level before bearing assembly.
4, bearing radial clearance in accordance with GB/T4604 e. 0 group.
5, according to GB/T307.1 special precision level.
6, for the bearing clearance, details of the inscribed circle, precision grade special requirements should contact the manufacturer.
The use of combined needle roller bearing material requirements:
1, needle materials for GCr15 bearing steel, hardened HRC60-65.
2, inside and outside the ring material is GCr15 bearing steel, hardened HRC61-65.
3, keep the material for high quality low carbon steel or reinforced nylon.
Combined needle roller bearing special instructions:
1, NKIA, NKIB series bearing axial load shall not exceed 25% of the radial load.
2, used for alternating axial load in the bearing must be opposed to install.
3, thrust bearing parts must be applied to basic rated static axial load 1% of pre-load.
4, when using the plastic cage (suffix TN) continuous working shall not exceed + 120 ° C temperature operation.
5, in the bearing thrust bearing components shall be free.
6 see rolling bearings, bearing general configuration design application technology in the relevant recommendations.
1, according to JB/T8877 dimensional tolerance and geometric accuracy.
2, needle difference each other in 2 microns in diameter, precision grade (gb GB309) for G2 stage.
3, without inner ring inscribed circle diameter in line with the F6 tolerance level before bearing assembly.
4, bearing radial clearance in accordance with GB/T4604 e. 0 group.
5, according to GB/T307.1 special precision level.
6, for the bearing clearance, details of the inscribed circle, precision grade special requirements should contact the manufacturer.
The use of combined needle roller bearing material requirements:
1, needle materials for GCr15 bearing steel, hardened HRC60-65.
2, inside and outside the ring material is GCr15 bearing steel, hardened HRC61-65.
3, keep the material for high quality low carbon steel or reinforced nylon.
Combined needle roller bearing special instructions:
1, NKIA, NKIB series bearing axial load shall not exceed 25% of the radial load.
2, used for alternating axial load in the bearing must be opposed to install.
3, thrust bearing parts must be applied to basic rated static axial load 1% of pre-load.
4, when using the plastic cage (suffix TN) continuous working shall not exceed + 120 ° C temperature operation.
5, in the bearing thrust bearing components shall be free.
6 see rolling bearings, bearing general configuration design application technology in the relevant recommendations.