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NU308
Cylindrical Roller Bearing
NU308
Cylindrical Roller Bearing
Heavy-duty single-row bearing with high radial load capacity, commonly used in UK industrial gearboxes. [Cylindrical Roller Bearings](https://www.nachi-bearings.de/media/crb_dimensions_web.pdf)
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.
Heavy-duty single-row bearing with high radial load capacity, commonly used in UK industrial gearboxes. [Cylindrical Roller Bearings](https://www.nachi-bearings.de/media/crb_dimensions_web.pdf)
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) | 40mm |
| Outer Diameter (D) | 90mm |
| Width (B) | 23mm |
| Weight | 0.65kg |
Load & Speed Ratings
| Dynamic Load Rating (Cr) | 82kN |
| Static Load Rating (C0r) | 78kN |
| Reference Speed | 7500rpm |
NU308
Cylindrical Roller Bearing
Technical Specifications
| Part Number | NU308 |
| Brand | Nachi |
| Bearing Type | Cylindrical Roller Bearing |
| Seal Type | Open |
| Material | Chrome Steel |
| Bore (Inner Diameter) | 40 mm |
| Outer Diameter | 90 mm |
| Width / Thickness | 23 mm |
| Dynamic Load Rating (Cr) | 82 kN |
| Static Load Rating (C0r) | 78 kN |
| Reference Speed | 7,500 rpm |
| Approximate Weight | 0.65 kg |
Enquire About the Nachi NU308
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Technical Datasheet
Download full specifications for NU308 — dimensions, load ratings, and material data.
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About the Nachi NU308
The Nachi NU308, is a cylindrical roller bearing, in an open configuration for maximum speed and easy relubrication, featuring a 40mm bore, 90mm outer diameter, and 23mm width, manufactured from chrome steel, and is extended stock at Buy Bearings.
Heavy-duty single-row bearing with high radial load capacity, commonly used in UK industrial gearboxes. [Cylindrical Roller Bearings](https://www.nachi-bearings.de/media/crb_dimensions_web.pdf)
Key Specifications
The NU308 cylindrical roller bearing is specified with 40mm bore (inner diameter), 90mm outer diameter, 23mm width, 82kN dynamic load rating, 78kN static load rating, 7,500rpm reference speed, 0.65kg approximate weight. The Open sealing arrangement protects against contamination and retains lubricant for extended service life. The chrome steel construction provides excellent wear resistance and durability in demanding operating conditions.
Common Applications
Cylindrical Roller Bearings are commonly used in:
About Cylindrical Roller Bearings
Cylindrical roller bearings use cylindrical rollers to handle high radial loads. They are suitable for high-speed applications and can accommodate axial displacement of the shaft relative to the housing.
Why Buy the NU308 from Buy Bearings?
- UK-authorised distributor with genuine Nachi 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 NU308 bearing?
The NU308 is a Nachi Cylindrical Roller Bearing with a 40mm bore, 90mm outer diameter and 23mm width. It is Extended Stock at Buy Bearings.
What are the NU308 dimensions?
The NU308 measures 40mm bore (inner diameter) × 90mm outer diameter × 23mm 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.
Is the NU308 in stock?
The NU308 is Extended Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Related & Compatible Bearings
Same cylindrical roller 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 40mm shaft diameter — complementary components for your bearing.
