6908ZZ
6900 SeriesZZGDQV 6908ZZ deep groove ball bearing, 40×62×12mm, double-sided metal shield (non-contact type), low friction, suitable for high-speed applications. Rated dynamic load 12.1kN, rated static load 8.95kN. Typical applications: Automotive.
Technical Drawing
Technical Specifications
| Bore (d) | 40 mm |
| Outer Diameter (D) | 62 mm |
| Width (B) | 12 mm |
| Dynamic Load (C) | 12.1 kN |
| Static Load (C₀) | 8.95 kN |
| Limiting Speed (Grease) | 11,000 rpm |
| Limiting Speed (Oil) | Please contact sales for confirmationPending confirmation |
| Internal Clearance | C0 |
| Material | GCr15 |
| Precision Grade | P0 |
Related specifications notes
Seal Design Notes
- Seal construction
- Metal shields on both sides. No rubber sealing-ring material is specified.
- What it shields
- The shields help limit dust entry and grease escape on both sides. They should not be treated as a specified water barrier.
- Effect on speed
- The listed grease-lubricated limiting speed is 100% of the open version for the same base model. Select against the actual speed in the specification table.
- Lubrication
- The factory table specifies grease lubrication and provides no oil-lubricated limiting speed. Confirm suitability with GDQV before specifying an oil-lubricated arrangement.
- When to choose it
- Consider ZZ for a grease-lubricated assembly needing shields on both sides. Confirm grease life and maintenance requirements for the operating conditions.
Key Features
- Standard dimensions: 40mm bore × 62mm OD × 12mm width
- Double metal shield for contamination protection
- Dynamic load rating: 12.1kN | Static load rating: 8.95kN
- Grease speed limit: 11,000 r/min | Oil speed limit: please contact sales for confirmation
- Material: GCr15 | Internal clearance: C0 | Precision grade: P0
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