Deep groove ball bearings
63944M Deep Groove Ball Bearing Dimensions & Specifications
63944M deep groove ball bearing: 220 mm bore (d), 300 mm outside diameter (D), 60 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 | 300 mm |
| Width B | 60 mm |
| Mass | 11.7 kg |
| Catalogue dynamic load Cr | 136 kN |
| Catalogue static load Cor | 162 kN |
| Grease-lubricated speed grease | 1900 rpm |
| Oil-lubricated speed oil | 2400 rpm |
Mounting dimensions & additional parameters (5)
| Abutment dimension Da Da | 283 mm |
|---|---|
| Abutment dimension da da | 241 mm |
| Minimum chamfer r12 r12 | 2.1 mm |
| Factor f0 f0 | 16 |
| Maximum fillet ra ra | 2 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for 63944M?
The 63944M catalogue lists da = 241 mm; Da = 283 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 63944M?
The listed values for 63944M are grease: 1900 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 63944M?
The catalogue reference mass for 63944M is 11.7 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.