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31311
Bearing (Extended Stock)
31311
Bearing (Extended Stock)
SKF Bearing (Extended Stock) with Open seals. A versatile bearing suitable for a range of mechanical applications. Manufactured from Chrome Steel (SAE 52100) for durability and long service life. In Stock at Buy Bearings. Order by 1pm for next-day UK dispatch.
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Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Need pricing for this part?
This bearing is priced on application. Our team will get back to you with competitive pricing within 24 hours, no obligation.
SKF Bearing (Extended Stock) with Open seals. A versatile bearing suitable for a range of mechanical applications. Manufactured from Chrome Steel (SAE 52100) for durability and long service life. In Stock at Buy Bearings. Order by 1pm for next-day UK dispatch.
Price Match Promise
Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Technical Dimensions & Load Ratings
Confirm these values match your shaft, housing and application requirements before ordering.
Dimensions
| Bore Diameter (d) | 55mm |
| Outer Diameter (D) | 120mm |
| Width (B) | 31.5mm |
31311
Bearing (Extended Stock)
Technical Specifications
| Part Number | 31311 |
| Brand | SKF |
| Bearing Type | Bearing (Extended Stock) |
| Seal Type | Open |
| Material | Chrome Steel (SAE 52100) |
| Cross-Reference | 31311J42A |
| Bore (Inner Diameter) | 55 mm |
| Outer Diameter | 120 mm |
| Width / Thickness | 31.5 mm |
Enquire About the SKF 31311
Get a competitive quote within 24 hours — no obligation. Our engineering team can help with specifications, cross-references, and volume pricing.
Technical Datasheet
Download full specifications for 31311 — dimensions, load ratings, and material data.
SKF Technical Resources
Equivalent part numbers from other manufacturers that can be used as direct replacements for 31311.
Engineering support
Our experienced MRO products specialists are on hand to offer practical solutions to your problems and can assist with an on-site visit.
Call us01709 878282
About the SKF 31311
The SKF 31311, is a bearing (extended stock), in an open configuration for maximum speed and easy relubrication, featuring a 55mm bore, 120mm outer diameter, and 31.5mm width, manufactured from chrome steel (sae 52100), and is in stock at Buy Bearings.
SKF Bearing (Extended Stock) with Open seals. A versatile bearing suitable for a range of mechanical applications. Manufactured from Chrome Steel (SAE 52100) for durability and long service life. In Stock at Buy Bearings. Order by 1pm for next-day UK dispatch.
Key Specifications
The 31311 bearing (extended stock) is specified with 55mm bore (inner diameter), 120mm outer diameter, 31.5mm width. The Open sealing arrangement protects against contamination and retains lubricant for extended service life. The chrome steel (sae 52100) construction provides excellent wear resistance and durability in demanding operating conditions.
Common Applications
Bearing (Extended Stock)s are commonly used in:
Why Buy the 31311 from Buy Bearings?
- UK-authorised distributor with genuine SKF products
- Expert technical support from our engineering team
- Competitive pricing with fast UK dispatch
- Full technical datasheet and cross-reference support
- 30-day returns on standard products
Frequently Asked Questions
What is a 31311 bearing?
The 31311 is a SKF Bearing (Extended Stock) with a 55mm bore, 120mm outer diameter and 31.5mm width. It is In Stock at Buy Bearings.
What are the 31311 dimensions?
The 31311 measures 55mm bore (inner diameter) × 120mm outer diameter × 31.5mm width.
What does Open mean on a bearing?
Open bearings have no seals or shields, allowing maximum speed and easy relubrication — best for clean, lubricated environments.
What is the 31311 cross-reference?
The 31311 is interchangeable with 31311J42A. Contact our team to confirm an exact equivalent for your application.
Is the 31311 in stock?
The 31311 is In Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Related & Compatible Bearings
Same bearing (extended stock), closest dimensions first — useful if you need a slightly different size or this part is unavailable.
Related Parts — Seals & Bushings
Matching seals and bushings for 55mm shaft diameter — complementary components for your bearing.
