SKF NU 311 ECP/C3 55 mm ID Roller Bearing, 120 mm OD
- RS Stock No.:
- 207-8597
- Mfr. Part No.:
- NU 311 ECP/C3
- Brand:
- SKF
Subtotal (1 unit)*
£129.62
(exc. VAT)
£155.54
(inc. VAT)
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Stocked by manufacturer
- Ready to ship from 23 October 2026
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Units | Per unit |
|---|---|
| 1 + | £129.62 |
*price indicative
- RS Stock No.:
- 207-8597
- Mfr. Part No.:
- NU 311 ECP/C3
- Brand:
- SKF
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | SKF | |
| Product Type | Roller Bearing | |
| Inside Diameter | 55mm | |
| Race Width | 29mm | |
| Bore Type | Cylindrical | |
| Roller Material | Steel | |
| Cage Material | Non-Metallic | |
| Bearing Material | Steel | |
| Number of Rows | 1 | |
| Static Load Rating | 143kN | |
| Internal Clearance | C3 | |
| Standards/Approvals | No | |
| Outside Diameter | 120mm | |
| Dynamic Load Rating | 156kN | |
| Limiting Speed | 7000rpm | |
| Series | NU 311 ECP | |
| Select all | ||
|---|---|---|
Brand SKF | ||
Product Type Roller Bearing | ||
Inside Diameter 55mm | ||
Race Width 29mm | ||
Bore Type Cylindrical | ||
Roller Material Steel | ||
Cage Material Non-Metallic | ||
Bearing Material Steel | ||
Number of Rows 1 | ||
Static Load Rating 143kN | ||
Internal Clearance C3 | ||
Standards/Approvals No | ||
Outside Diameter 120mm | ||
Dynamic Load Rating 156kN | ||
Limiting Speed 7000rpm | ||
Series NU 311 ECP | ||
- COO (Country of Origin):
- DE
SKF NU 311 ECP Series Roller Bearing, 55mm Bore, 120mm Outside Diameter - NU 311 ECP/C3
This roller bearing is designed to support radial loads in rotating machinery where precise internal clearance and high load capacity are required. It accommodates a cylindrical shaft Interface and is constructed from steel with a non‑metallic cage, making it suitable for industrial shafts operating at elevated rotational speeds.
Features and Benefits:
• Single‑row design delivers high radial load capacity
• Internal clearance C3 allows increased thermal expansion tolerance
• Steel rollers and rings provide Durable rolling contact
• Non‑metallic cage reduces noise and frictional heat
• Limiting speed of 7000 rev/min supports high‑speed operation
• High static capacity of 143 kN resists heavy standstill loads
• Internal clearance C3 allows increased thermal expansion tolerance
• Steel rollers and rings provide Durable rolling contact
• Non‑metallic cage reduces noise and frictional heat
• Limiting speed of 7000 rev/min supports high‑speed operation
• High static capacity of 143 kN resists heavy standstill loads
Applications
• Suitable for heavy‑duty electric motor bearings
• Used for gearbox intermediate shaft support
• Ideal for conveyor drive rollers under load
• Can be used in pump rotor radial support
• Used with industrial fans operating at high speed
• Used for gearbox intermediate shaft support
• Ideal for conveyor drive rollers under load
• Can be used in pump rotor radial support
• Used with industrial fans operating at high speed
What bore Interface does this component require?
It requires a cylindrical bore with an internal diameter of 55 mm.
How does clearance classification affect mounting precision?
The C3 clearance provides extra internal radial play to compensate for shaft growth and misalignment during temperature rise.
What materials contact the shaft and housing during operation?
The rolling elements and raceways are MADE of steel, while the retaining cage is a non‑metallic material.
How should load expectations be assessed for stationary loads?
Use the static load rating of 143 kN to evaluate capacity against Peak non‑rotating loads.
What rotational limit should be observed during specification?
The bearing should not exceed a limiting speed of 7000 rev/min in service.
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