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6221/6221-ZZ/6221-2RS Deep Groove Ball Bearing
Model: 6221-2Z/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 | 30 | 9 | 0.6 | 5.1 | 2.39 | 25,000 | 30,000 | 0.032 | 6200 |
| 12 | 32 | 10 | 0.6 | 6.1 | 2.75 | 22,000 | 26,000 | 0.037 | 6201 |
| 15 | 35 | 11 | 0.6 | 7.75 | 3.6 | 19,000 | 23,000 | 0.045 | 6202 |
| 17 | 40 | 12 | 0.6 | 9.6 | 4.6 | 18,000 | 21,000 | 0.066 | 6203 |
| 20 | 47 | 14 | 1 | 12.8 | 6.65 | 16,000 | 18,000 | 0.106 | 6204 |
| 25 | 52 | 15 | 1 | 14 | 7.85 | 13,000 | 15,000 | 0.128 | 6205 |
| 30 | 62 | 16 | 1 | 19.5 | 11.3 | 11,000 | 13,000 | 0.199 | 6206 |
| 35 | 72 | 17 | 1.1 | 25.7 | 15.3 | 9,800 | 11,000 | 0.288 | 6207 |
| 40 | 80 | 18 | 1.1 | 29.1 | 17.8 | 8,700 | 10,000 | 0.366 | 6208 |
| 45 | 85 | 19 | 1.1 | 32.5 | 20.4 | 7,800 | 9,200 | 0.398 | 6209 |
| 50 | 90 | 20 | 1.1 | 35 | 23.2 | 7,100 | 8,300 | 0.454 | 6210 |
| 55 | 100 | 21 | 1.5 | 43.5 | 29.2 | 6,400 | 7,600 | 0.601 | 6211 |
| 60 | 110 | 22 | 1.5 | 52.5 | 36 | 6,000 | 7,000 | 0.783 | 6212 |
| 65 | 120 | 23 | 1.5 | 57.5 | 40 | 5,500 | 6,500 | 0.99 | 6213 |
| 70 | 125 | 24 | 1.5 | 62 | 44 | 5,100 | 6,000 | 1.07 | 6214 |
| 75 | 130 | 25 | 1.5 | 66 | 49.5 | 4,800 | 5,600 | 1.18 | 6215 |
| 80 | 140 | 26 | 2 | 72.5 | 53 | 4,500 | 5,300 | 1.4 | 6216 |
| 85 | 150 | 28 | 2 | 83.5 | 64 | 4,200 | 5,000 | 1.79 | 6217 |
| 90 | 160 | 30 | 2 | 96 | 71.5 | 4,000 | 4,700 | 2.15 | 6218 |
| 95 | 170 | 32 | 2.1 | 109 | 82 | 3,700 | 4,400 | 2.62 | 6219 |
| 100 | 180 | 34 | 2.1 | 122 | 93 | 3,500 | 4,200 | 3.14 | 6220 |
| 105 | 190 | 36 | 2.1 | 133 | 105 | 3,400 | 4,000 | 3.7 | 6221 |
| 110 | 200 | 38 | 2.1 | 144 | 117 | 3,200 | 3,800 | 4.36 | 6222 |
| 120 | 215 | 40 | 2.1 | 155 | 131 | 2,900 | 3,400 | 5.15 | 6224 |
| 130 | 230 | 40 | 3 | 167 | 146 | 2,700 | 3,100 | 5.82 | 6226 |
| 140 | 250 | 42 | 3 | 166 | 150 | 2,500 | 2,900 | 7.57 | 6228 |
| 150 | 270 | 45 | 3 | 176 | 168 | 2,300 | 2,700 | 9.41 | 6230 |
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