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NJ421ECM
Cylindrical Roller Bearing
NJ421ECM
Cylindrical Roller Bearing
ISB Cylindrical Roller Bearing with Open seals measuring 105mm bore × 145mm outer diameter × 28mm width. Built for heavy radial loads in gearboxes, conveyors and industrial drives. 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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ISB Cylindrical Roller Bearing with Open seals measuring 105mm bore × 145mm outer diameter × 28mm width. Built for heavy radial loads in gearboxes, conveyors and industrial drives. 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) | 105mm |
| Outer Diameter (D) | 145mm |
| Width (B) | 28mm |
NJ421ECM
Cylindrical Roller Bearing
Technical Specifications
| Part Number | NJ421ECM |
| Brand | ISB |
| Bearing Type | Cylindrical Roller Bearing |
| Seal Type | Open |
| Material | Chrome Steel (SAE 52100) |
| Bore (Inner Diameter) | 105 mm |
| Outer Diameter | 145 mm |
| Width / Thickness | 28 mm |
Enquire About the ISB NJ421ECM
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Technical Datasheet
Download full specifications for NJ421ECM — dimensions, load ratings, and material data.
ISB Technical Resources
Engineering support
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About the ISB NJ421ECM
The ISB NJ421ECM, is a cylindrical roller bearing, in an open configuration for maximum speed and easy relubrication, featuring a 105mm bore, 145mm outer diameter, and 28mm width, manufactured from chrome steel (sae 52100), and is in stock at Buy Bearings.
ISB Cylindrical Roller Bearing with Open seals measuring 105mm bore × 145mm outer diameter × 28mm width. Built for heavy radial loads in gearboxes, conveyors and industrial drives. 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 NJ421ECM cylindrical roller bearing is specified with 105mm bore (inner diameter), 145mm outer diameter, 28mm 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
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 NJ421ECM from Buy Bearings?
- UK-authorised distributor with genuine ISB 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 NJ421ECM bearing?
The NJ421ECM is a ISB Cylindrical Roller Bearing with a 105mm bore, 145mm outer diameter and 28mm width. It is In Stock at Buy Bearings.
What are the NJ421ECM dimensions?
The NJ421ECM measures 105mm bore (inner diameter) × 145mm outer diameter × 28mm 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 NJ421ECM in stock?
The NJ421ECM 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 105mm shaft diameter — complementary components for your bearing.
