SKF 2307 EM/C3 self-aligning ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
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Decoding SKF 2307 EM/C3
- 23Series
- Self-aligning ball bearings, 23 series. Series differ in outside diameter and width even when the bore is the same.
- 07Bore
- Bore 35 mm (07 × 5).
- EM/C3Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
2307 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 2307 EM/C3 measures 35 mm across the bore and 80 mm across the outside diameter; its width is 31 mm (35 x 80 x 31 mm).
SKF 2307 EM/C3 belongs to self-aligning ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 2307 EM/C3 and any equivalents.
Self-aligning ball bearings in the SKF 23 series carry combined loads while absorbing angular misalignment between shaft and housing, thanks to a double row of balls running on a spherical raceway in the outer ring. Equipment such as fans, pumps, conveyors and agricultural machinery often relies on them where perfect alignment is difficult to maintain. MR Industrial Accessories LLC offers this line within its SKF bearing range.
Reading the code is the fastest way to know what you are ordering. Take 2307 EM/C3: the basic number 2307 identifies the bearing type and its dimension series, with the 23 prefix signaling a self-aligning ball bearing built to standard dimensions. The EM suffix means a machined brass cage, which suits higher speeds and temperatures. C3 calls out radial internal clearance above normal, a common choice with tight fits or when shaft and housing run at different temperatures.
Typical applications include industrial fans, centrifugal pumps, belt conveyors, mixers, screens and transmission equipment, as well as food, chemical, cement and aggregate processing. Agricultural machinery and tillage implements also use these bearings, where dust and changing loads call for a robust design. The self-aligning feature helps in assemblies where the shaft flexes or the housing is not fully rigid.
Selection comes down to radial and axial load, speed and the operating environment. An EM brass cage fits demanding running conditions; in very dirty settings, add suitable seals. Choose C3 clearance when the shaft fit is tight or thermal gradients are present. At mounting, start with reasonable alignment and apply the correct grease or oil. Self-aligning capacity is limited and does not remove the need for careful alignment.
Each manufacturer uses its own nomenclature, so equivalents require attention. A self-aligning bearing from another brand with matching dimensions and clearance may work, but check tolerances and cage style, since suffixes are not always equivalent. For a replacement, compare bore, outer diameter and width along with the operating conditions. MR Industrial Accessories LLC can help you confirm the right equivalent.
Send the code of your SKF self-aligning bearing by WhatsApp or email and the team will prepare a quote. If the code is unreadable, share measurements or a photo and they will help identify the replacement and suggest options.
Dimensions
35 x 80 x 31 mm (d x D x B): boundary dimensions for basic designation 2307, according to ISO 15.
- Bore
- 35mm
- Outside diameter (D)
- 80mm
- Width (B)
- 31mm
Same size, other brands
Other brands' pages with basic designation 2307: 35 x 80 x 31 mm (d x D x B) per ISO 15.
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF 2307 EM/C3 bearing: what are its dimensions?
- SKF 2307 EM/C3 measures 35 mm across the bore and 80 mm across the outside diameter; its width is 31 mm (35 x 80 x 31 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 2307.
- What does the EM suffix indicate on an SKF bearing?
- EM identifies a one-piece machined brass cage guided by the rolling elements. It withstands higher speeds and temperatures better than a standard sheet metal cage.
- When should I specify C3 clearance?
- C3 is radial clearance above normal. It is specified when fits on the shaft or housing are tight or when temperature differences between components could otherwise preload the bearing.
- How can I tell if another brand's bearing is equivalent?
- Match bore, outer diameter and width, then compare load and speed conditions. Suffix meanings differ between makers, so check cage type and radial clearance as well. If unsure, send the original code to MR.