SKF 7310-C3 Bearing — Specifications, Dimensions & Cross-Reference

The SKF 7310-C3 is a angular contact ball bearing with C3 clearance manufactured by SKF. It belongs to the 7300 series and features dimensions of 50 × 110 × 27 mm (bore × OD × width). This bearing has a dynamic load rating of 63,700 N and a static load rating of 40,500 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)50 mm
Outside Diameter (D)110 mm
Width (B)27 mm
Weight1.056 kg
Performance
Dynamic Load Rating (Cr)63,700 N
Static Load Rating (C₀r)40,500 N
Limiting Speed (Grease)5,600 rpm
Limiting Speed (Oil)6,700 rpm
💡 Application Note: The 7300 series bearings are commonly used in heavy-duty machine tool spindles, large pumps, and high-speed turbines. The -C3 suffix indicates greater-than-normal radial internal clearance, recommended for applications with temperature differentials or tight shaft/housing fits.

Brand Cross-Reference — 7310-C3 Equivalents

The following bearings from other manufacturers are interchangeable with the SKF 7310-C3. All share identical dimensions (50×110×27mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
SKFSKF 7310-C3 ✦63,70040,500
SKF SKF 7310-C3 63,700 40,500
NTN NTN 7310-C3 63,700 40,500
KOYO KOYO 7310-C3 63,700 40,500
FAG FAG 7310-C3 63,700 40,500
NACHI NACHI 7310-C3 63,700 40,500
Timken Timken 7310-C3 63,700 40,500
NSK NSK 7310-C3 63,700 40,500
NTN NTN 7310-C3 63,700 40,500

Available Variants

The SKF 7310 base bearing is available in these configurations:

SKF 7310-ZZ-C3
"Double shielded
SKF 7310-ZZ
Double metal shielded
SKF 7310-NR
Open with snap ring
SKF 7310-C3
"Open
SKF 7310-2Z
Double metal shielded (ISO)
SKF 7310-2RS-C3
"Double sealed
SKF 7310-2RS
Double rubber sealed
SKF 7310
Open (no seal/shield)
SKF 7310-NR
Open with snap ring
SKF 7310-ZZ-C3
Double shielded, C3 clearance
SKF 7310-2RS-C3
Double sealed, C3 clearance
SKF 7310-2Z
Double metal shielded (ISO)
SKF 7310-ZZ
Double metal shielded
SKF 7310-2RS
Double rubber sealed
SKF 7310
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the SKF 7310-C3?

The SKF 7310-C3 has a bore diameter of 50mm, outside diameter of 110mm, and width of 27mm. It weighs 1.056kg.

What is the load capacity of the SKF 7310-C3?

The dynamic load rating (Cr) is 63,700 N and the static load rating (C₀r) is 40,500 N. The maximum recommended speed is 5,600 rpm with grease lubrication or 6,700 rpm with oil lubrication.

What bearings are equivalent to SKF 7310-C3?

The 7310-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 50×110×27mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.