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Micro Bearings. 12–15. Radial Ball Bearings. 16–41. Angular Contact Ball Bearings. 43–56. Self Aligning Ball Bearings. 57–61. Cylindrical Roller Bearings. 62–74 M: Medium. ISO: Metric series 320X, 302, 322, 303 and 323. 3. SUFFIX. A: Different bore, O.D., width or radius from basic part number. PK: Class K for J-Line.Innovation in bearing technology has been our expertise for over a century. Today SKF provides a wide range of new bearing technology to customers globally.
2. Variations. K. Bearing with 1:12 tapered bore. 2RS1. 2 rubber seals with metal backing. 3. Cage Designations. TN9. Fibreglass reinforced Polyamide, ball centred. M. Machined brass cage, ball centred. No symbol Steel, ball centred. 4. Clearance. C2. Radial internal clearance < normal. CN. Normal clearance not shown.Principal dimensions, Basic load ratings, Speed ratings, Designations. dynamic, static, Reference speed, Limiting speed, Bearing, Adapter sleeve. d, D, B, C, C0. mm, kN, r/min
d, 190, mm. D, 290, mm. B, 46, mm. d1, ≈, 222, mm. D1, ≈, 258, mm. r1,2, min. 2.1, mm. Abutment dimensions. da, min. 200, mm. Da, max. 280, mm. ra, max. 2, mm. Calculation data. Basic dynamic load rating, C, 195, kN. Basic static load rating, C0, 216, kN. Fatigue load limit, Pu, 5.85, kN. Reference speed, 4800, r/min.Basic dynamic load rating, C, 14.3, kN. Basic static load rating, C0, 3.55, kN. Fatigue load limit, Pu, 0.19, kN. Reference speed, 30000, r/min. Limiting speed, 22000, r/min. Permissible angular misalignment, α, 3, °. Calculation factor, kr, 0.05. Calculation factor, e, 0.52. Calculation factor, Y0, 1.3. Calculation factor, Y1, 1.2.
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