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NTN N309
Cylindrical Roller Bearing
NTN N309
Cylindrical Roller Bearing
NTN N309 - Cylindrical Roller bearing - ID 45 OD 100 W 25mm
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NTN N309 - Cylindrical Roller bearing - ID 45 OD 100 W 25mm
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) | 45mm |
| Outer Diameter (D) | 100mm |
| Width (B) | 25mm |
| Weight | 857kg |
NTN N309
Cylindrical Roller Bearing
Technical Specifications
| Part Number | NTN N309 |
| Brand | NTN/SNR |
| Bearing Type | Cylindrical Roller Bearing |
| Seal Type | Open |
| Bore (Inner Diameter) | 45 mm |
| Outer Diameter | 100 mm |
| Width / Thickness | 25 mm |
| Approximate Weight | 857 kg |
Enquire About the NTN/SNR NTN N309
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Technical Datasheet
Download full specifications for NTN N309 — dimensions, load ratings, and material data.
NTN/SNR Technical Resources
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About the NTN/SNR NTN N309
The NTN/SNR NTN N309, is a cylindrical roller bearing, in an open configuration for maximum speed and easy relubrication, featuring a 45mm bore, 100mm outer diameter, and 25mm width, and is in stock at Buy Bearings.
NTN N309 - Cylindrical Roller bearing - ID 45 OD 100 W 25mm
Key Specifications
The NTN N309 cylindrical roller bearing is specified with 45mm bore (inner diameter), 100mm outer diameter, 25mm width, 857kg approximate weight. The Open sealing arrangement protects against contamination and retains lubricant for extended service life.
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 NTN N309 from Buy Bearings?
- UK-authorised distributor with genuine NTN/SNR 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 NTN N309 bearing?
The NTN N309 is a NTN/SNR Cylindrical Roller Bearing with a 45mm bore, 100mm outer diameter and 25mm width. It is In Stock at Buy Bearings.
What are the NTN N309 dimensions?
The NTN N309 measures 45mm bore (inner diameter) × 100mm outer diameter × 25mm 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 NTN N309 in stock?
The NTN N309 is In 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 45mm shaft diameter — complementary components for your bearing.
