Need pricing for 7311BW?
Get a competitive quote from our engineering team — no obligation.
7311BW
Angular Contact Ball Bearing
7311BW
Angular Contact Ball Bearing
NSK Angular Contact Ball Bearing with Open seals measuring 55mm bore × 120mm outer diameter × 29mm width. Designed for combined radial and axial loads in pumps, gearboxes and high-speed machinery. 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.
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.
NSK Angular Contact Ball Bearing with Open seals measuring 55mm bore × 120mm outer diameter × 29mm width. Designed for combined radial and axial loads in pumps, gearboxes and high-speed machinery. 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) | 29mm |
7311BW
Angular Contact Ball Bearing
Technical Specifications
| Part Number | 7311BW |
| Brand | NSK |
| Bearing Type | Angular Contact Ball Bearing |
| Seal Type | Open |
| Material | Chrome Steel (SAE 52100) |
| Cross-Reference | 7311B, 7311BECBJ, 7311BECBM, 7311BEP, 7311BTVP |
| Bore (Inner Diameter) | 55 mm |
| Outer Diameter | 120 mm |
| Width / Thickness | 29 mm |
Enquire About the NSK 7311BW
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 7311BW — dimensions, load ratings, and material data.
NSK Technical Resources
Equivalent part numbers from other manufacturers that can be used as direct replacements for 7311BW.
Have a competitor's part number?
Type it in and we'll show you the equivalent part we stock — any brand, any format.
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 NSK 7311BW
The NSK 7311BW, is a angular contact ball bearing, in an open configuration for maximum speed and easy relubrication, featuring a 55mm bore, 120mm outer diameter, and 29mm width, manufactured from chrome steel (sae 52100), and is in stock at Buy Bearings.
NSK Angular Contact Ball Bearing with Open seals measuring 55mm bore × 120mm outer diameter × 29mm width. Designed for combined radial and axial loads in pumps, gearboxes and high-speed machinery. 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 7311BW angular contact ball bearing is specified with 55mm bore (inner diameter), 120mm outer diameter, 29mm 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
Angular Contact Ball Bearings are commonly used in:
About Angular Contact Ball Bearings
Angular contact ball bearings are designed to handle combined radial and axial loads. Their contact angle allows them to support axial loads in one direction, making them ideal for high-speed and precision applications.
Why Buy the 7311BW from Buy Bearings?
- UK-authorised distributor with genuine NSK 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 7311BW bearing?
The 7311BW is a NSK Angular Contact Ball Bearing with a 55mm bore, 120mm outer diameter and 29mm width. It is In Stock at Buy Bearings.
What are the 7311BW dimensions?
The 7311BW measures 55mm bore (inner diameter) × 120mm outer diameter × 29mm 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 7311BW cross-reference?
The 7311BW is interchangeable with 7311B, 7311BECBJ, 7311BECBM, 7311BEP, 7311BTVP. Contact our team to confirm an exact equivalent for your application.
Is the 7311BW in stock?
The 7311BW is In Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Related & Compatible Bearings
Same angular contact ball bearing, 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.
