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SKF
Self-Aligning Ball B. SKF 2213 E-2RS1KTN9/C3
- Technical data
- Inner diameter
- 65 mm
- Outer diameter
- 120 mm
- Width
- 31 mm
- Material
- Standard bearing steel
- Ball rows
- Double row bearing
- Seal
- Contact seal on both sides
- Cage
- Polyamide cage
- Clearance
- Slightly increased radial clearance
- Running accuracy
- Tolerance class P0/PN2 / ABEC 1
- Bore
- Tapered bore (1:12)
- Inner ring
- Standard version
- Temperature range
- -30 to +100 °C
- Weight
- 1,45 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 4,53 € | 86,14 € |
| 20 | 9,06 € | 81,61 € |
Self-Aligning Ball B. SKF 2213 E-2RS1KTN9/C3
The SKF 2213 E-2RS1KTN9/C3 self-aligning ball bearing, with dimensions of 65 × 120 × 31 mm, compensates for misalignment and protects against the ingress of dirt.
This double-row self-aligning ball bearing 2213 E-2RS1KTN9/C3 from SKF is characterised by its hollow-ball outer ring raceway. This allows the rolling bearing to self-align automatically in the event of shaft misalignment. Manufactured from standard rolling-element bearing steel 100Cr6 and fitted with seals that seal on both sides, this component provides a durable solution for industrial bearing arrangements subject to shaft deflection.
What is the 2213 E-2RS1KTN9/C3 self-aligning ball bearing suitable for?
Design engineers primarily use this self-aligning ball bearing where elastic deflection of the shaft or misalignment between bearing seats occurs. The two rows of balls absorb radial loads and compensate for angular misalignment during operation. Thanks to the contact seals, grease remains inside whilst dust and moisture are kept out. For demanding operating environments in general mechanical engineering, the bearing thus offers effective protection for the contact surfaces.
What is the function of the tapered bore and the C3 clearance?
The design with a tapered bore at a ratio of 1:12 simplifies installation using a shrink sleeve or directly onto a tapered shaft seat. This reduces the radial bearing clearance when the inner ring is pushed on axially. For this reason, the bearing is supplied ex-works with a slightly increased C3 bearing clearance to maintain a suitable operating clearance after installation. The polyamide cage guides the rolling elements precisely and is suitable for operating temperatures ranging from –30 to +100 degrees Celsius.
What are the dimensions of the 2213 E-2RS1KTN9/C3 self-aligning ball bearing?
The bearing has an inner diameter of 65 mm at the tapered bore, an outer diameter of 120 mm and a width across flats of 31 mm. These dimensions provide a wide mounting surface on the shaft and enable the bearing to accommodate radial forces.
Why does this bearing have a clearance rating of C3?
The increased radial clearance C3 compensates for the expansion of the inner ring that occurs during fitting onto tapered shafts or adapter sleeves. Furthermore, the bearing clearance accommodates temperature-induced expansion during operation without the balls becoming jammed between the raceways.
What does the suffix 2RS1 mean in SKF terminology?
The designation 2RS1 indicates synthetic rubber sealing rings fitted on both sides. These seals contact the inner ring, retain the factory-applied grease inside the bearing and prevent the ingress of dirt particles or splash water.
What material is the TN9 cage made of?
The suffix TN9 denotes a polyamide cage. This material is characterised by its low weight and good damping properties, and retains its dimensional stability within the specified temperature range of -30 to +100 degrees Celsius.
How is the tapered bore fitted?
A bearing with a tapered bore is usually mounted on a cylindrical shaft using a locking sleeve, or directly onto a tapered shaft journal. It is secured by axial sliding, with the reduction in radial clearance serving as an indicator of a correct fit.
Does the self-aligning ball bearing compensate for misalignment during operation?
Thanks to the shared hollow spherical raceway in the outer ring, the inner ring and ball cages can move at an angle to the housing axis. This enables the rolling bearing to compensate for misalignment and shaft deflection during operation without any significant increase in friction.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership
10018547