Single-row cylindrical roller bearings
NF38/630 Cylindrical Roller Bearing Dimensions & Specifications
NF38/630 cylindrical roller bearing: 630 mm bore (d), 780 mm outside diameter (D), 112 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 630 mm |
|---|---|
| Outside diameter D | 780 mm |
| Width B | 112 mm |
| Mass | 125 kg |
| Catalogue dynamic load Cr | 2100 kN |
| Catalogue static load Cor | 5400 kN |
| Grease-lubricated speed grease | 560 rpm |
| Oil-lubricated speed oil | 670 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Db Db | 764 mm |
|---|---|
| Abutment dimension da da | 646 mm |
| Minimum chamfer r12 r12 | 4 mm |
| Minimum chamfer r34 r34 | 4 mm |
| Maximum fillet ra ra | 3 mm |
| Maximum fillet rb rb | 3 mm |
| Roller envelope diameter Ew Ew | 745 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NF38/630?
The NF38/630 catalogue lists da = 646 mm; ra ≤ 3 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 NF38/630?
The listed values for NF38/630 are grease: 560 rpm; oil: 670 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 NF38/630?
The catalogue reference mass for NF38/630 is 125 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.