tailieunhanh - NTN, BALL AND ROLLER BEARING CATALOG Part 4

Tham khảo tài liệu 'ntn, ball and roller bearing catalog part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Bearing Handling NTN Table Installation of tapered bore spherical roller bearings Units mm Nominal bearing bore diameter d Reduction of radial internal clearance Axial displacement drive up Minimum allowable residual clearance Taper 1 12 Taper 1 Min 30 Max Min Max Over incl. Min Max CN C3 C4 30 40 - - 40 50 - - 50 65 - - 65 80 - - 80 100 100 120 120 140 3 140 160 3 160 180 4 180 200 200 225 4 225 250 2 5 250 280 6 280 315 2 5 315 355 6 7 355 400 400 450 450 500 4 10 500 560 560 630 4 10 630 710 710 800 800 900 900 1 000 1 000 1 120 17 1 120 1 250 Fig. Axial internal clearance adjustment Fig. Internal clearance adjustment using shims Fig. Measurement of axial internal clearance adjustment A-89 Bearing Handling NTN Post installation running test To insure that the bearing has been properly installed a running test is performed after installation is completed. The shaft or housing is first rotated by hand and if no problems are observed a low speed no