NSK 6311DDU 1 Row Deep Groove Ball Bearing - 55 mm ID, 120 mm OD
- RS Stock No.:
- 644-030
- Mfr. Part No.:
- 6311DDU
- Brand:
- NSK
Subtotal (1 unit)*
£42.34
(exc. VAT)
£50.81
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- Plus 2 unit(s) shipping from 01 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £42.34 |
*price indicative
- RS Stock No.:
- 644-030
- Mfr. Part No.:
- 6311DDU
- Brand:
- NSK
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | NSK | |
| Inside Diameter | 55 mm | |
| Product Type | Deep Groove Ball Bearing | |
| Outside Diameter | 120 mm | |
| Race Width | 29mm | |
| Cage Material | Steel | |
| Ball Material | Steel | |
| Number of Rows | 1 | |
| Static Load Rating | 44500N | |
| Dynamic Load Rating | 78500N | |
| Bore Type | Parallel | |
| Standards/Approvals | No | |
| Limiting Speed | 4000rpm | |
| Bearing Type | Single Row Deep Groove Ball | |
| Race Type | Plain | |
| Select all | ||
|---|---|---|
Brand NSK | ||
Inside Diameter 55 mm | ||
Product Type Deep Groove Ball Bearing | ||
Outside Diameter 120 mm | ||
Race Width 29mm | ||
Cage Material Steel | ||
Ball Material Steel | ||
Number of Rows 1 | ||
Static Load Rating 44500N | ||
Dynamic Load Rating 78500N | ||
Bore Type Parallel | ||
Standards/Approvals No | ||
Limiting Speed 4000rpm | ||
Bearing Type Single Row Deep Groove Ball | ||
Race Type Plain | ||
Non Compliant
- COO (Country of Origin):
- PL
The NSK Single‑row deep groove ball bearing engineered for durability and low maintenance in demanding applications. It features a 55 mm bore diameter, 120 mm outer diameter, and 29 mm width, making it well-suited for robust mechanical systems. The bearing is equipped with double contact rubber seals (DDU), offering excellent protection against contaminants while retaining internal lubrication. It provides a basic dynamic load rating of 78,500 N and a static load rating of 44,500 N, ensuring reliable performance under heavy load conditions.
Robust and compact construction for space efficient installation
High quality bearing steel ensures excellent durability
Lightweight design
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