Single-row cylindrical roller bearings
NU1044M Cylindrical Roller Bearing Dimensions & Specifications
NU1044M cylindrical roller bearing: 220 mm bore (d), 340 mm outside diameter (D), 56 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 220 mm |
|---|---|
| Outside diameter D | 340 mm |
| Width B | 56 mm |
| Mass | 18.2 kg |
| Catalogue dynamic load Cr | 500 kN |
| Catalogue static load Cor | 750 kN |
| Grease-lubricated speed grease | 1800 rpm |
| Oil-lubricated speed oil | 2200 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 320 mm |
|---|---|
| Abutment dimension db db | 238 mm |
| Minimum chamfer r12 r12 | 3 mm |
| Minimum chamfer r34 r34 | 3 mm |
| Maximum fillet ra ra | 2.5 mm |
| Maximum fillet rb rb | 2.5 mm |
| Roller envelope diameter Fw Fw | 250 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU1044M?
The NU1044M catalogue lists Da = 320 mm; ra ≤ 2.5 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 NU1044M?
The listed values for NU1044M are grease: 1800 rpm; oil: 2200 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 NU1044M?
The catalogue reference mass for NU1044M is 18.2 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.