Single-row cylindrical roller bearings
NU1948M Cylindrical Roller Bearing Dimensions & Specifications
NU1948M cylindrical roller bearing: 240 mm bore (d), 320 mm outside diameter (D), 38 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 240 mm |
|---|---|
| Outside diameter D | 320 mm |
| Width B | 38 mm |
| Mass | 8.68 kg |
| Catalogue dynamic load Cr | 315 kN |
| Catalogue static load Cor | 550 kN |
| Grease-lubricated speed grease | 2000 rpm |
| Oil-lubricated speed oil | 2400 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 302 mm |
|---|---|
| Abutment dimension db db | 253 mm |
| Minimum chamfer r12 r12 | 2.1 mm |
| Minimum chamfer r34 r34 | 2.1 mm |
| Maximum fillet ra ra | 2 mm |
| Maximum fillet rb rb | 2 mm |
| Roller envelope diameter Fw Fw | 260 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU1948M?
The NU1948M catalogue lists Da = 302 mm; ra ≤ 2 mm. Check these symbols against the bearing drawing and the shaft/housing shoulders; they are not shaft or housing fit tolerances.
What speed values are available for NU1948M?
The listed values for NU1948M are grease: 2000 rpm; oil: 2400 rpm. These catalogue references do not determine a safe operating speed on their own. Confirm load, clearance, lubrication and heat conditions for the application.
What is the reference mass of NU1948M?
The catalogue reference mass for NU1948M is 8.68 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.