Technical Drawing
Technical Specifications
| Bore (d) | 40 mm |
| Outer Diameter (D) | 68 mm |
| Width (B) | 15 mm |
| Dynamic Load (C) | 16.8 kN |
| Static Load (C₀) | 11.5 kN |
| Limiting Speed (Grease) | 10,000 rpm |
| Limiting Speed (Oil) | 12,000 rpm |
| Internal Clearance | C0 |
| Material | GCr15 |
| Precision Grade | P0 |
Seal Design Notes
- Seal construction
- An RZ sealing ring made of nitrile rubber (NBR) on one side; the opposite side is open.
- What it shields
- The ring helps limit contaminant entry and grease escape on the sealed side. The factory table does not specify contact geometry or a water-resistance rating.
- Effect on speed
- The listed grease-lubricated limiting speed is 100% of the open version for the same base model. This is a speed-rating comparison, not a claim of zero seal friction.
- Lubrication
- The factory table lists both grease and oil lubrication. Check the model-specific oil speed and lubricant supply through the open side.
- When to choose it
- Consider RZ when one NBR sealing ring and the listed open-version grease speed suit the application, with the opposite side protected by the assembly.
Key Features
- Standard dimensions: 40mm bore × 68mm OD × 15mm width
- Single rubber seal for contamination protection
- Dynamic load rating: 16.8kN | Static load rating: 11.5kN
- Grease speed limit: 10,000 r/min | Oil speed limit: 12,000 r/min
- Bearing steel, internal clearance and precision grade pending
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