Single-row cylindrical roller bearings
NU3856M Cylindrical Roller Bearing Dimensions & Specifications
NU3856M cylindrical roller bearing: 280 mm bore (d), 350 mm outside diameter (D), 52 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 280 mm |
|---|---|
| Outside diameter D | 350 mm |
| Width B | 52 mm |
| Mass | 11.6 kg |
| Catalogue dynamic load Cr | 435 kN |
| Catalogue static load Cor | 985 kN |
| Grease-lubricated speed grease | 1700 rpm |
| Oil-lubricated speed oil | 2000 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 334 mm |
|---|---|
| Abutment dimension db db | 293 mm |
| Minimum chamfer r12 r12 | 2 mm |
| Minimum chamfer r34 r34 | 1.1 mm |
| Maximum fillet ra ra | 2 mm |
| Maximum fillet rb rb | 1 mm |
| Roller envelope diameter Fw Fw | 298 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU3856M?
The NU3856M catalogue lists Da = 334 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 NU3856M?
The listed values for NU3856M are grease: 1700 rpm; oil: 2000 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 NU3856M?
The catalogue reference mass for NU3856M is 11.6 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.