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Linear Technology
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Seals
SKF
Spherical Roller Bearings SKF 23136 CCK/C4W33
- Technical data
- Inner diameter
- 180 mm
- Outer diameter
- 300 mm
- Width
- 96 mm
- Material
- Standard bearing steel
- Seal
- None, open bearing
- Cage
- Sheet steel cage
- Clearance
- Strongly increased 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
- Weight
- 27 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 57,77 € | 1.097,63 € |
| 3 | 115,54 € | 1.039,86 € |
Spherical Roller Bearings SKF 23136 CCK/C4W33
The SKF 23136 CCK/C4W33 self-aligning roller bearing, with a 180 mm bore, tapered seat and C4 clearance, offers high load-carrying capacity under shaft deflection.
The SKF 23136 CCK/C4W33 self-aligning roller bearing is a double-row roller bearing designed for demanding industrial applications involving high radial loads. With its main dimensions of 180 mm bore diameter, 300 mm outer diameter and 96 mm width, the bearing can also accommodate combined forces. The open design, made from standard roller bearing steel 100Cr6, is suitable for operating temperatures ranging from -30 to +200 degrees. Thanks to the spherical outer ring raceway, the component automatically compensates for misalignment and shaft deflection during operation.
What is the 23136 CCK/C4W33 spherical roller bearing suitable for in operation?
Typical applications include heavy-duty industrial drives, gearboxes and industrial plant where significant radial forces occur. As open roller bearings require external lubrication, the outer ring features a lubrication groove with lubrication holes in accordance with the W33 standard. This allows lubricant to flow directly between the roller rings and the sheet steel cage. This design is particularly suitable for machines with long shaft centres, as it compensates for angular misalignment between the shaft and the housing without causing increased edge stresses.
What are the distinctive features of the design with a tapered bore and C4 clearance?
The designation CCK refers to a tapered bore with a ratio of 1:12. This design allows for mounting directly onto a tapered shaft seat or using a clamping or withdrawal sleeve. The increased radial clearance (C4) compensates for operational thermal expansion and the radial expansion of the inner ring during tightening. With standard dimensional accuracy PN and increased running accuracy P5, the SKF bearing meets demanding requirements for concentricity and quiet operation.
What are the dimensions of the 23136 CCK/C4W33 self-aligning roller bearing?
The bearing has an internal diameter of 180 mm, an external diameter of 300 mm and a width of 96 mm. These standardised key dimensions enable it to be fitted precisely into suitable housings. The roller bearing is manufactured from 100Cr6 bearing steel, which retains its dimensional stability within a temperature range of -30 to +200 degrees.
What does the suffix CCK on this SKF bearing mean?
This designation refers to a spherical roller bearing with symmetrical rollers, a pressed sheet steel cage and a tapered bore with a taper ratio of 1:12. The tapered inner diameter allows for precise adjustment of the radial clearance during fitting onto shaft journals or sleeves. In addition, the sheet steel cage guides the rollers along the raceways with low friction.
Why is the increased C4 clearance required?
C4 denotes a significantly increased radial clearance compared with the standard version. When the tapered inner ring is pressed onto the shaft, the radial clearance is reduced. The C4 clearance ensures that, after tightening and during operation-induced heating up to 200 degrees, sufficient operating clearance remains, thereby preventing the rolling elements from becoming jammed.
What is the purpose of the W33 marking on the outer ring?
The suffix W33 denotes a circumferential lubrication groove with lubrication holes in the outer ring of the bearing. This design facilitates relubrication whilst the bearing is fitted, as grease or lubricating oil is fed evenly and directly into the interior of the bearing. The lubricant is thus distributed precisely across both rows of rollers.
What level of running accuracy does tolerance class P5 offer?
In this design, SKF combines the dimensional accuracy of the PN standard class with the finer running accuracy of class P5. Whilst the mounting dimensions have standard tolerances, the radial and axial runout of both the inner and outer rings are subject to particularly tight tolerances. This promotes low-vibration operation and reduces dynamic vibration at higher shaft speeds.
How is the open pendulum roller bearing protected against contamination?
As this bearing is manufactured without sealing washers, the seal must be provided by the surrounding bearing housing. Depending on the operating environment, labyrinth seals, felt strips or radial shaft seals are used. The open design also allows for the free choice of lubricant to suit operating temperatures ranging from -30 to +200 degrees.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership
10010303