SKF 3311 A 2 Row Ball Bearing - 55 mm ID, 120 mm OD 49.2 mm Race Width
- RS Stock No.:
- 195-9555
- Mfr. Part No.:
- 3311 A
- Brand:
- SKF
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Subtotal (1 unit)*
£233.75
(exc. VAT)
£280.50
(inc. VAT)
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- Shipping from 05 January 2026
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Units | Per unit |
|---|---|
| 1 - 4 | £233.75 |
| 5 - 9 | £224.40 |
| 10 - 24 | £219.70 |
| 25 + | £215.05 |
*price indicative
- RS Stock No.:
- 195-9555
- Mfr. Part No.:
- 3311 A
- 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 | Ball Bearing | |
| Inside Diameter | 55 mm | |
| Outside Diameter | 120 mm | |
| Race Width | 49.2mm | |
| Ball Material | Steel | |
| Cage Material | Sheet Metal | |
| End Type | Open | |
| Number of Rows | 2 | |
| Contact Angle | 30° | |
| Internal Clearance | CN | |
| Static Load Rating | 81.5kN | |
| Dynamic Load Rating | 112kN | |
| Bore Type | Parallel | |
| Standards/Approvals | No | |
| Limiting Speed | 5300rpm | |
| Race Type | Plain | |
| Bearing Type | Double Row Angular Contact Ball | |
| Select all | ||
|---|---|---|
Brand SKF | ||
Product Type Ball Bearing | ||
Inside Diameter 55 mm | ||
Outside Diameter 120 mm | ||
Race Width 49.2mm | ||
Ball Material Steel | ||
Cage Material Sheet Metal | ||
End Type Open | ||
Number of Rows 2 | ||
Contact Angle 30° | ||
Internal Clearance CN | ||
Static Load Rating 81.5kN | ||
Dynamic Load Rating 112kN | ||
Bore Type Parallel | ||
Standards/Approvals No | ||
Limiting Speed 5300rpm | ||
Race Type Plain | ||
Bearing Type Double Row Angular Contact Ball | ||
RoHS Status: Exempt
SKF Ball Bearing, 55mm Inside Diameter, 120mm Outside Diameter - 3311 A
This ball bearing is a high-performance component designed for demanding applications in the automation, electronics, and mechanical industries. With an inside diameter of 55mm and an outside diameter of 120mm, this double row angular contact ball bearing is built to withstand significant loads while ensuring smooth operation. The open type design allows for easy maintenance and optimal performance.
Features & Benefits
• Double row design enhances load distribution and stability
• Steel construction offers durability and resistance to wear
• CN clearance optimises performance in varied operating conditions
• Dynamic load rating of 112 kN supports high-speed applications
• Open type facilitates easy access for lubrication and inspection
• Sheet metal cage ensures reliable operation at higher speeds
Applications
• Used with machinery requiring precise shaft alignment
• Ideal for high-speed spindles in automation systems
• Suitable for with varying load conditions
• Utilised in equipment where lubrication access is critical
What is the significance of the open type design?
The open type design allows for unrestricted access to lubrication, making maintenance simpler and helping to maintain optimal performance over time.
How does the dynamic load rating affect performance?
A dynamic load rating of 112 kN indicates this component can manage high-speed operations efficiently, making it suitable for demanding applications.
What materials are used in the construction?
The ball bearing is constructed from steel for the main components, ensuring durability and effective load handling, while the cage is made from sheet metal for added strength.
What factors influence the bearing's clearance code?
The CN clearance code indicates a standard clearance suitable for general applications, providing a balance between load capacity and operational performance.
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