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SKF
Self-Aligning Ball B. SKF 2307 ETN9
- Technical data
- Inner diameter
- 35 mm
- Outer diameter
- 80 mm
- Width
- 31 mm
- Material
- Standard bearing steel
- Ball rows
- Double row bearing
- Seal
- None, open bearing
- Cage
- Polyamide cage
- Clearance
- Normal radial clearance
- Running accuracy
- Tolerance class P0/PN2 / ABEC 1
- Bore
- Cylindrical bore
- Inner ring
- Standard version
- Temperature range
- -30 to +120 °C
- Weight
- 0,68 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 15 | 3,08 € | 58,45 € |
| 30 | 6,15 € | 55,38 € |
Self-Aligning Ball B. SKF 2307 ETN9
The 2307 ETN9 double-row self-aligning ball bearing from SKF Rolling Bearings, with a 35 mm bore, compensates for misalignment caused by shaft deflection within a temperature range of -30 to +120 degrees.
The SKF 2307 ETN9 double-row self-aligning ball bearing is designed to accommodate radial loads whilst allowing for shaft misalignment. Thanks to the spherical raceway in the outer ring, the two rows of balls can adjust their angular position. With key dimensions of a 35 mm bore, 80 mm outer diameter and 31 mm width, this open roller bearing made from standard roller bearing steel (100Cr6) provides stable support for dynamically loaded shaft systems in mechanical engineering.
What is the 2307 ETN9 self-aligning ball bearing suitable for in operation?
This design is particularly useful where misalignment between bearing positions or elastic deflection of the shaft needs to be compensated for. As the ball elements compensate for angular misalignment directly via the spherical raceway, no harmful edge stresses are generated on the bearing rings. As an open bearing without seals, the component can be flexibly integrated into externally sealed bearing housings with oil or grease lubrication.
What are the characteristics of the ETN9 polyamide cage?
The suffix ETN9 denotes a polyamide cage with ball guides, characterised by its low weight and favourable running properties. This material dampens vibrations and supports low-friction operation of the two rows of balls. The permissible operating temperature range is from -30 to +120 degrees. With standard radial bearing clearance and a cylindrical bore, the standard inner ring is mounted directly onto the cylindrical shaft seat.
What makes the 2307 ETN9 self-aligning ball bearing stand out?
A double-row self-aligning ball bearing with a common hollow-spherical raceway in the outer ring, which automatically compensates for misalignment of the shaft. This version has a cylindrical bore of 35 mm, an outer diameter of 80 mm and a width of 31 mm with standard bearing clearance.
What are the dimensions of the 2307 self-aligning ball bearing?
The bearing has an inside diameter of 35 mm, an outside diameter of 80 mm and a width of 31 mm. This double-row component is manufactured from conventional standard roller bearing steel (100Cr6) and is designed as an open version without seals.
What does the suffix ETN9 mean at SKF?
The designation ETN9 indicates an optimised internal design and a polyamide cage. This plastic cage reduces the weight of the rotating components, dampens running noise and is designed to withstand continuous temperatures ranging from -30 to +120 degrees.
What is the bearing clearance on this model?
The bearing has the standard radial clearance (CN), which is intended for standard fits and typical operating temperatures. This clearance class offers a balanced compromise between smooth running, swivelling freedom and low radial play in the bearing assembly.
Why is the bearing designed as an open type?
The open design, which does not feature integrated sealing washers, allows for flexible lubricant selection, with oil or grease applied directly via the housing. If necessary, the lubricant can be easily replaced as part of regular maintenance intervals, and the bearing housing can be efficiently relubricated.
What is the tolerance class of this component?
The self-aligning ball bearing is manufactured to the standard tolerance class P0 (normal tolerance, comparable to ABEC 1). This classification meets the criteria for dimensionally accurate manufacturing and is in line with standard requirements in general mechanical engineering.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership
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