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6308/6308-ZZ/6308-2RS Deep Groove Ball Bearing
Model: 6308-2Z/2RS/Z/RS/N/NR/ZNR/open type etc...
Material: Chrome Steel ( GCr15=DIN 100Cr6).
Precision: ABEC-1(P0), ABEC-3 (P6), ABEC-5(P5).
Vibration & Noise availability: Z, Z1, Z2, Z3, Z4; V, V1, V2, V3 etc. For big size, usually in normal grade of Z level.
Description
1. Bearing Material
High carbon chrome bearing steel(Gcr15) is the standard material for bearing ring & rolling elements, also carbon steel & stainless steel will be used upon request. The cages are pressed steel ribbon cages & pressed steel snap cages. For extra-high speed application, synthetic-resin, stainless steel, nylons(Phenolic resins) will be used upon request.
2. Lubrication
Different types of greases can be supplied for shielded & sealed bearings and oil for open bearings
3. Tolerance
YUTONG Bearings can meet tolerance grades from ABEC-1 to ABEC-3 as requested dimension tolerance & runout accurancy.
NOTE
C2 Group clearance only for bearings over ABEC-3 accurancy.
4. Vibration and Noise
The vibration and noise of bearing in four classes Z1, Z2, Z3 and Z4, It is measured by the instrument of S09-1, For special requirement, it is measured by BVT-1 and classified as V1, V2, and V3, The date are shown tables, different vibration & noise requirement should be menrioned in order.
Specification
The detailed specification is as follows:
| Boundary dimensions(mm) | Basic load ratings(kN) | Limiting speeds(rpm) | Mass(Kg) | Bearing Number | |||||
| d | D | B | rs min | Cr | Cor | Grease | Oil | (Approx.) | YUTONG |
| 10 | 35 | 11 | 0.6 | 8.2 | 3.5 | 23,000 | 27,000 | 0.053 | 6300 |
| 12 | 37 | 12 | 1 | 9.7 | 4.2 | 20,000 | 24,000 | 0.06 | 6301 |
| 15 | 42 | 13 | 1 | 11.4 | 5.45 | 17,000 | 21,000 | 0.082 | 6302 |
| 17 | 47 | 14 | 1 | 13.5 | 6.55 | 16,000 | 19,000 | 0.115 | 6303 |
| 20 | 52 | 15 | 1.1 | 15.9 | 7.9 | 14,000 | 17,000 | 0.144 | 6304 |
| 25 | 62 | 17 | 1.1 | 21.2 | 10.9 | 12,000 | 14,000 | 0.232 | 6305 |
| 30 | 72 | 19 | 1.1 | 26.7 | 15 | 10,000 | 12,000 | 0.36 | 6306 |
| 35 | 80 | 21 | 1.5 | 33.5 | 19.1 | 8,800 | 10,000 | 0.457 | 6307 |
| 40 | 90 | 23 | 1.5 | 40.5 | 24 | 7,800 | 9,200 | 0.63 | 6308 |
| 45 | 100 | 25 | 1.5 | 53 | 32 | 7,000 | 8,200 | 0.814 | 6309 |
| 50 | 110 | 27 | 2 | 62 | 38.5 | 6,400 | 7,500 | 1.07 | 6310 |
| 55 | 120 | 29 | 2 | 71.5 | 45 | 5,800 | 6,800 | 1.37 | 6311 |
| 60 | 130 | 31 | 2.1 | 82 | 52 | 5,400 | 6,300 | 1.73 | 6312 |
| 65 | 140 | 33 | 2.1 | 92.5 | 60 | 4,900 | 5,800 | 2.08 | 6313 |
| 70 | 150 | 35 | 2.1 | 104 | 68 | 4,600 | 5,400 | 2.52 | 6314 |
| 75 | 160 | 37 | 2.1 | 113 | 77 | 4,300 | 5,000 | 3.02 | 6315 |
| 80 | 170 | 39 | 2.1 | 123 | 86.5 | 4,000 | 4,700 | 3.59 | 6316 |
| 85 | 180 | 41 | 3 | 133 | 97 | 3,800 | 4,500 | 4.23 | 6317 |
| 90 | 190 | 43 | 3 | 143 | 107 | 3,600 | 4,200 | 4.91 | 6318 |
| 95 | 200 | 45 | 3 | 153 | 119 | 3,300 | 3,900 | 5.67 | 6319 |
| 100 | 215 | 47 | 3 | 173 | 141 | 3,200 | 3,700 | 7 | 6320 |
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