Deep groove ball bearings
6221 Deep Groove Ball Bearing Dimensions & Specifications
6221 deep groove ball bearing: 105 mm bore (d), 190 mm outside diameter (D), 36 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 105 mm |
|---|---|
| Outside diameter D | 190 mm |
| Width B | 36 mm |
| Mass | 3.66 kg |
| Catalogue dynamic load Cr | 133 kN |
| Catalogue static load Cor | 105 kN |
| Grease-lubricated speed grease | 3200 rpm |
| Oil-lubricated speed oil | 3800 rpm |
Mounting dimensions & additional parameters (5)
| Abutment dimension Da Da | 179 mm |
|---|---|
| Abutment dimension da da | 116 mm |
| Minimum chamfer r12 r12 | 2.1 mm |
| Factor f0 f0 | 14 |
| 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 6221?
The 6221 catalogue lists da = 116 mm; Da = 179 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 6221?
The listed values for 6221 are grease: 3200 rpm; oil: 3800 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 6221?
The catalogue reference mass for 6221 is 3.66 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.