Single-row cylindrical roller bearings
NU3884M Cylindrical Roller Bearing Dimensions & Specifications
NU3884M cylindrical roller bearing: 420 mm bore (d), 520 mm outside diameter (D), 75 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 420 mm |
|---|---|
| Outside diameter D | 520 mm |
| Width B | 75 mm |
| Mass | 35.4 kg |
| Catalogue dynamic load Cr | 800 kN |
| Catalogue static load Cor | 1990 kN |
| Grease-lubricated speed grease | 900 rpm |
| Oil-lubricated speed oil | 1100 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 498 mm |
|---|---|
| Abutment dimension db db | 440 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 | 447 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU3884M?
The NU3884M catalogue lists Da = 498 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 NU3884M?
The listed values for NU3884M are grease: 900 rpm; oil: 1100 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 NU3884M?
The catalogue reference mass for NU3884M is 35.4 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.