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SKF
Spherical Roller Bearings SKF 22312 EK
- Technical data
- Inner diameter
- 60 mm
- Outer diameter
- 130 mm
- Width
- 46 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
- 3,05 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 10,26 € | 194,90 € |
| 20 | 20,52 € | 184,64 € |
Spherical Roller Bearings SKF 22312 EK
The SKF 22312 EK self-aligning roller bearing (60x130x46 mm) compensates for misalignment and accommodates high radial and axial loads in demanding shaft mountings.
The 22312 EK self-aligning roller bearing is a double-row roller bearing designed for demanding operating conditions. Manufactured from 100Cr6 bearing steel, this SKF Explorer series bearing is characterised by its high load-carrying capacity. With key dimensions of a 60 mm bore diameter, 130 mm outer diameter and 46 mm width, this design is suitable for medium to heavy-duty applications. Thanks to the hollow spherical outer ring raceway, the roller set dynamically adapts to misalignments of the shaft.
In which installation situations does the 22312 EK self-aligning roller bearing prove its worth?
This self-aligning roller bearing is used where high radial loads occur in conjunction with shaft deflection or misalignment. The geometry allows for continuous angular misalignment compensation during operation without additional edge pressures occurring on the rolling elements. Thanks to the sheet steel cage and the temperature range of -30 to +200 degrees, the bearing also withstands fluctuating thermal stresses during operation.
What are the special features of the tapered bore and lubrication groove?
The suffix ‘K’ denotes a tapered bore with a ratio of 1:12. This design facilitates mounting on tapered shaft seats or, using clamping and withdrawal sleeves, on cylindrical shafts, thereby allowing the remaining radial clearance to be precisely adjusted during installation. For lubrication, the outer ring features a circumferential lubrication groove with lubrication holes. Furthermore, the bearing has the standard dimensional accuracy PN in combination with the running accuracy P5, which contributes to smooth running.
What does the suffix ‘EK’ mean in the designation of the 22312 pendulum roller bearing?
The letter combination indicates design features. The ‘K’ stands for the tapered bore with a taper ratio of 1:12 for sleeve or shaft mounting. The ‘E’ indicates the optimised internal design with increased load-carrying capacity, which is achieved by means of a robust sheet steel cage.
What are the dimensions of the 22312 EK self-aligning roller bearing?
The bearing has a bore diameter of 60 mm, an outside diameter of 130 mm and a total width of 46 mm. These dimensions provide a robust cross-section capable of withstanding heavy combined loads, whilst maintaining a compact design in mechanical engineering.
Why does the bearing have a lubrication groove on the outer ring?
The lubrication groove and the associated lubrication holes in the outer ring allow the raceways to be relubricated directly. This ensures that the lubricant is distributed symmetrically to the centre of the bearing, cooling the contact zones and evenly displacing spent lubricant from the working area of both rows of rollers.
What distinguishes the P5 running accuracy from the standard class?
Whilst the dimensional accuracy PN complies with standardised manufacturing tolerances, the running accuracy P5 has tighter tolerance limits. This results in lower runout error during operation, reduces unwanted vibrations and ensures smooth running with an even load distribution across the rolling elements.
What is the temperature range for which the 22312 EK self-aligning roller bearing is designed?
Thanks to the heat treatment of the 100Cr6 roller bearing steel and the temperature-insensitive sheet steel cage, the open bearing can be operated within a temperature range of -30 to +200 degrees. When designing the bearing arrangement, the chosen lubricant must be selected to suit the intended temperature range.
How is a spherical roller bearing with a tapered bore fitted?
The bearing is pressed either directly onto a tapered shaft journal or, using a suitable mounting or withdrawal sleeve, onto a cylindrical shaft. As it is pushed on axially, the inner ring expands, thereby allowing the initial bearing clearance to be reduced by a defined amount.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership
10009115