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SKF
Spherical Roller Bearings SKF 23038 CC/C3W33
- Technical data
- Inner diameter
- 190 mm
- Outer diameter
- 290 mm
- Width
- 75 mm
- Material
- Standard bearing steel
- Seal
- None, open bearing
- Cage
- Sheet steel cage
- Clearance
- Slightly increased radial clearance
- Running accuracy
- Dimensional accuracy PN, Running accuracy P5
- Bore
- Cylindrical bore
- Outer ring
- Lubrication groove with lubrication holes on outer ring
- Version2
- Standard version
- Temperature range
- -30 to +200 °C
- Weight
- 18 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 48,78 € | 926,77 € |
| 3 | 97,56 € | 877,99 € |
Spherical Roller Bearings SKF 23038 CC/C3W33
The SKF 23038 CC/C3W33 self-aligning roller bearing, with a 190 mm bore, C3 clearance and W33 lubrication groove, provides reliable compensation for shaft deflection under heavy radial loads.
The SKF 23038 CC/C3W33 self-aligning roller bearing is a double-row roller bearing designed for industrial applications involving high radial forces and axial loads in both directions. With dimensions of a 190 mm bore, 290 mm outer diameter and 75 mm width, the barrel-shaped roller arrangement automatically compensates for misalignment and shaft deflection during operation. The open bearing, made from standard 100Cr6 rolling-element steel, features a sheet steel cage and is designed for operating temperatures ranging from -30 to +200 degrees.
What is the 23038 CC/C3W33 self-aligning roller bearing suitable for in industrial applications?
Design engineers and maintenance personnel use this bearing primarily in heavily loaded industrial applications where high radial loads, varying axial forces and shock loads occur. The double-row design with a hollow-spherical outer ring raceway accommodates misalignment between the inner and outer rings without causing excessive edge stresses. Thanks to the integrated lubrication groove with lubrication holes in the outer ring (W33), the open roller bearing can be supplied with fresh lubricant directly via the housing during the ongoing maintenance cycle.
What do the C3 bearing clearance and tolerance class P5 mean for your bearing arrangement?
The designation C3 indicates a slightly increased radial clearance compared with the standard version. This increased clearance between the rollers and raceways prevents the bearing from seizing up should temperature differences or tight fits lead to thermal expansion of the shaft. In addition, the bearing features increased running accuracy to Class P5 whilst maintaining standard dimensional accuracy PN. Low-friction operation is ensured by the internally guided sheet steel cage, which guides the roller elements even under demanding operating conditions.
What are the main dimensions of the 23038 CC/C3W33 self-aligning roller bearing?
The roller bearing has a cylindrical bore of 190 mm, an outer diameter of 290 mm and a width of 75 mm. These standardised mounting dimensions enable precise installation in suitable pedestal housings or machine housings as part of maintenance or new construction.
What is the function of the suffix W33 on this self-aligning roller bearing?
W33 denotes a circumferential lubrication groove with lubrication holes on the outer ring. This feature directs the lubricant from the housing lubrication system directly between the two rows of rollers. The lubricant is distributed evenly across the raceways, which reduces frictional wear and makes relubrication intervals easier to manage.
Why is the increased bearing clearance C3 important in the design process?
Bearing clearance class C3 offers greater radial clearance than the standard PN class. Where there are noticeable temperature differences between the shaft and the housing, the inner ring expands more rapidly than the outer ring. The increased bearing clearance compensates for this thermal expansion as well as manufacturing-related press fits, ensuring that the bearing rolls freely during operation.
What material are the rings and cage of bearing 23038 made of?
The bearing rings and roller elements are made from standard roller bearing steel (100Cr6), which is designed for high fatigue strength. A dimensionally stable sheet steel cage is used. It maintains a uniform spacing between the rolling elements and is suitable for operating temperatures between –30 and +200 degrees.
What are the characteristics of tolerance class P5 for this SKF bearing?
Whilst the dimensional accuracy of this model complies with PN standards, it offers enhanced running accuracy of class P5. This minimises radial and axial run-out. The result is smoother operation, reduced vibration in the machine train and more precise guidance of rotating machine components.
How is the 23038 open pendulum roller bearing protected against contamination?
As this version is supplied without integrated sealing washers, external housing seals such as labyrinth rings or radial shaft seals provide protection against dust and moisture. Open bearings allow the lubricant – whether grease or oil – to be flexibly adapted to the specific operating conditions on site.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership
10009947