6308-ZZ
6308-ZZ Deep Groove Ball Bearings in the 6300 Series for OEM/ODM sourcing, replacement selection, and distributor quotes. Key dimensions: 40 mm bore, 90 mm OD, 23 mm width. Ratings: 40.7 kN dynamic load, 24 kN static load.
6308-ZZ selection notes
Applications
6308-ZZ suits motors, pumps, and industrial gearboxes that need a metal-shielded deep groove bearing with higher capacity than 6200-series sizes.
Interchange
Match against 6308 ZZ / 6308-Z equivalents. Verify 40 mm bore, 90 mm OD, and shield preference before swapping brands.
Options
ZZ metal shields reduce contamination ingress while allowing higher speed than many sealed designs. Ask for C3 clearance or OEM packaging when quoting.
6308-ZZ application guides
Key dimensions
- Bore d
- 40 mm
- Outside D
- 90 mm
- Width B
- 23 mm
- Dynamic load Cr
- 40.7 kN
- Static load Cor
- 24 kN
- Weight
- 0.639 kg
Catalog dimensions are for the base size. Seal/shield suffixes (Open, Z, ZZ, RS, 2RS) change width and friction but share the same d × D envelope unless noted.
Specifications
| Bearing No. | Main Dimension (mm) | Load Rating (kN) | Max Runout Speed (r/min) | Weight (kg) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Bored | Outer DiameterD | WidthB | Radiusr min | Dynamic | Static | Grease | Oil | ||
| 635 | 5 | 19 | 6 | 0.3 | 2.34 | 0.89 | 34,000 | 40,000 | 0.005 |
| 636 | 6 | 22 | 7 | 0.3 | 3.35 | 1.40 | 33,000 | 39,000 | 0.008 |
| 637 | 7 | 26 | 9 | 0.3 | 4.60 | 2.00 | 28,000 | 15,000 | 0.024 |
| 638 | 8 | 28 | 9 | 0.3 | 4.60 | 2.00 | 28,000 | 15,000 | 0.024 |
| 639 | 9 | 30 | 10 | 0.6 | 6.10 | 2.70 | 25,000 | 30,000 | 0.035 |
| 6300 | 10 | 35 | 11 | 0.6 | 7.65 | 3.48 | 23,000 | 27,000 | 0.053 |
| 6301 | 12 | 37 | 12 | 1.0 | 9.72 | 5.08 | 20,000 | 24,000 | 0.060 |
| 6302 | 15 | 42 | 13 | 1.0 | 11.50 | 5.42 | 17,000 | 21,000 | 0.082 |
| 6303 | 17 | 47 | 14 | 1.0 | 13.50 | 6.58 | 16,000 | 19,000 | 0.115 |
| 6304 | 20 | 52 | 15 | 1.1 | 15.90 | 7.80 | 14,000 | 17,000 | 0.144 |
| 6305 | 25 | 62 | 17 | 1.1 | 20.60 | 11.30 | 11,000 | 13,000 | 0.219 |
| 6306 | 30 | 72 | 19 | 1.1 | 26.70 | 15.00 | 9,600 | 12,000 | 0.350 |
| 6307 | 35 | 80 | 21 | 1.5 | 33.40 | 19.30 | 8,500 | 10,000 | 0.454 |
| 6308 | 40 | 90 | 23 | 1.5 | 40.70 | 24.00 | 7,700 | 9,200 | 0.639 |
| 6309 | 45 | 100 | 25 | 1.5 | 48.90 | 29.50 | 6,800 | 8,100 | 0.836 |
| 6310 | 50 | 110 | 27 | 2.0 | 62.00 | 38.30 | 6,100 | 7,300 | 1.082 |
| 6311 | 55 | 120 | 29 | 2.0 | 71.60 | 45.00 | 5,600 | 6,700 | 1.370 |
| 6312 | 60 | 130 | 31 | 2.1 | 81.90 | 52.20 | 5,200 | 6,200 | 1.700 |
| 6313 | 65 | 140 | 33 | 2.1 | 92.70 | 59.90 | 4,800 | 5,800 | 2.080 |
| 6314 | 70 | 150 | 35 | 2.1 | 104.00 | 68.20 | 4,500 | 5,400 | 2.520 |
| 6315 | 75 | 160 | 37 | 2.1 | 113.00 | 77.00 | 4,300 | 5,000 | 3.020 |
| 6316 | 80 | 170 | 39 | 2.1 | 123.00 | 86.50 | 4,000 | 4,800 | 3.590 |
| 6317 | 85 | 180 | 41 | 3.0 | 132.00 | 96.50 | 3,800 | 4,500 | 4.230 |
| 6318 | 90 | 190 | 43 | 3.0 | 145.00 | 108.00 | 3,600 | 4,300 | 4.910 |
| 6319 | 95 | 200 | 45 | 3.0 | 157.00 | 122.00 | 3,300 | 3,900 | 5.670 |
| 6320 | 100 | 215 | 47 | 3.0 | 173.00 | 140.00 | 3,200 | 3,700 | 7.000 |
Models related to 6308-ZZ
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