Need pricing for NJ306?
Get a competitive quote from our engineering team — no obligation.
This part is currently out of stock
4 in-stock alternatives found — cross-referenced equivalents ready to ship:
Machine breakdown? Call us now
We typically respond within 1 hour during business hours.
01709 878282Monday – Friday, 8:00am – 5:00pm
NJ306
Cylindrical Roller Bearing
NJ306
Cylindrical Roller Bearing
Single-row bearing with an NJ configuration, providing axial location in one direction and high radial stiffness. [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.
Single-row bearing with an NJ configuration, providing axial location in one direction and high radial stiffness. [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) | 30mm |
| Outer Diameter (D) | 72mm |
| Width (B) | 19mm |
| Weight | 0.36kg |
Load & Speed Ratings
| Dynamic Load Rating (Cr) | 51kN |
| Static Load Rating (C0r) | 46.5kN |
| Reference Speed | 9500rpm |
NJ306
Cylindrical Roller Bearing
Technical Specifications
| Part Number | NJ306 |
| Brand | Nachi |
| Bearing Type | Cylindrical Roller Bearing |
| Seal Type | Open |
| Material | Chrome Steel |
| Bore (Inner Diameter) | 30 mm |
| Outer Diameter | 72 mm |
| Width / Thickness | 19 mm |
| Dynamic Load Rating (Cr) | 51 kN |
| Static Load Rating (C0r) | 46.5 kN |
| Reference Speed | 9,500 rpm |
| Approximate Weight | 0.36 kg |
Enquire About the Nachi NJ306
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 NJ306 — dimensions, load ratings, and material data.
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 Nachi NJ306
The Nachi NJ306, is a cylindrical roller bearing, in an open configuration for maximum speed and easy relubrication, featuring a 30mm bore, 72mm outer diameter, and 19mm width, manufactured from chrome steel, and is extended stock at Buy Bearings.
Single-row bearing with an NJ configuration, providing axial location in one direction and high radial stiffness. [Cylindrical Roller Bearings](https://www.nachi-bearings.de/media/crb_dimensions_web.pdf)
Key Specifications
The NJ306 cylindrical roller bearing is specified with 30mm bore (inner diameter), 72mm outer diameter, 19mm width, 51kN dynamic load rating, 46.5kN static load rating, 9,500rpm reference speed, 0.36kg 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 NJ306 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 NJ306 bearing?
The NJ306 is a Nachi Cylindrical Roller Bearing with a 30mm bore, 72mm outer diameter and 19mm width. It is Extended Stock at Buy Bearings.
What are the NJ306 dimensions?
The NJ306 measures 30mm bore (inner diameter) × 72mm outer diameter × 19mm 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 NJ306 in stock?
The NJ306 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 30mm shaft diameter — complementary components for your bearing.
