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SKF
Spherical Roller Bearings SKF 22240 CCK/W33
- Technical data
- Inner diameter
- 200 mm
- Outer diameter
- 360 mm
- Width
- 98 mm
- Material
- Standard bearing steel
- Seal
- None, open bearing
- Cage
- Sheet steel cage
- Clearance
- Normal radial clearance
- Running accuracy
- Dimensional accuracy PN, Running accuracy P5
- Bore
- Tapered bore (1:12)
- Outer ring
- Lubrication groove with lubrication holes on outer ring
- Version2
- Standard version
- Temperature range
- -30 to +200 °C
- Version
- Explorer
- Weight
- 42,5 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 94,71 € | 1.799,46 € |
| 3 | 189,41 € | 1.704,76 € |
Spherical Roller Bearings SKF 22240 CCK/W33
The SKF 22240 CCK/W33 self-aligning roller bearing, with a 200 mm bore, tapered seat and W33 lubrication groove, offers high load-carrying capacity for heavy-duty industrial applications.
The SKF 22240 CCK/W33 self-aligning roller bearing automatically compensates for misalignment and shaft deflection during operation. The double-row roller arrangement on the spherical outer ring raceway accommodates heavy radial loads and combined axial forces. This open roller bearing, made from standard 100Cr6 bearing steel, features a robust sheet steel cage and is suitable for a wide temperature range from –30 to +200 degrees. Thanks to its SKF Explorer class design, these bearings offer high fatigue strength for demanding continuous operation.
For which operating conditions is the 22240 CCK/W33 self-aligning roller bearing suitable?
The self-aligning roller bearing is suitable for applications involving heavy combined loads where elastic shaft deflection or angular misalignment may occur. The angularly adjustable internal geometry reduces edge stresses caused by shaft inclination. The combination of standard radial clearance, dimensional accuracy to PN class and increased running accuracy P5 ensures smooth running. The component reliably supports heavy shafts under varying load directions.
What are the advantages of a tapered bore and the W33 feature?
The designation CCK refers to a tapered bore with a ratio of 1:12. This fit facilitates mounting on clamping or withdrawal sleeves, as well as directly onto tapered shaft journals, as the radial operating clearance can be precisely adjusted during mounting. The designation W33 indicates a circumferential lubrication groove with lubrication holes in the outer ring. This allows grease or lubricating oil to flow directly into the interior of the bearing at maintenance intervals, which supports an even supply to the rolling elements.
What are the dimensions of the 22240 CCK/W33 self-aligning roller bearing?
The bearing has an internal diameter of 200 mm, an external diameter of 360 mm and a width of 98 mm. These standardised key dimensions enable it to be fitted precisely into suitable pedestal bearings or machine housings.
What does the suffix CCK/W33 mean?
The suffix describes specific design details: CC stands for the internal SKF design featuring window-type sheet steel cages and an inner ring without a guide ring. The ‘K’ indicates a tapered bore with a 1:12 taper, whilst ‘W33’ defines a lubrication groove with lubrication holes in the outer ring.
How is a spherical roller bearing with a tapered bore fitted?
Bearings with a tapered bore are mounted either directly onto a tapered shaft seat or onto cylindrical shafts using a clamping or withdrawal sleeve. When the bearing is fitted, the radial bearing clearance is reduced; therefore, the remaining operating clearance should be measured and checked during installation.
What are the bearing clearance and tolerances for this rolling bearing?
This model features the standard radial bearing clearance for normal operating conditions. In terms of manufacturing tolerances, this design combines standard dimensional accuracy (PN) with a tighter running accuracy of class P5, which enhances concentricity during operation.
Does the spherical roller bearing need to be lubricated before commissioning?
Yes, as this is an open bearing without integrated sealing washers. A suitable initial greasing or oil supply is required before first use. The lubricant can be topped up directly during subsequent operation via the W33 lubrication groove on the outer ring.
Within what temperature range can the bearing be operated?
The bearing, made from 100Cr6 roller bearing steel with a sheet steel cage, is designed for operating temperatures ranging from -30 to +200 degrees. The actual operating limit is always determined by the temperature resistance of the lubricant used and the surrounding sealing components.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership
10008898