SKF 7310 Bearing — Specifications, Dimensions & Cross-Reference

The SKF 7310 is a angular contact ball bearing 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.

Brand Cross-Reference — 7310 Equivalents

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

BrandPart NumberDynamic Load (N)Static Load (N)
SKFSKF 7310 ✦63,70040,500
NTN NTN 7310 63,700 40,500
KOYO KOYO 7310 63,700 40,500
FAG FAG 7310 63,700 40,500
NACHI NACHI 7310 63,700 40,500
Timken Timken 7310 63,700 40,500
NSK NSK 7310 63,700 40,500
NTN NTN 7310 63,700 40,500
SKF SKF 7310 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-NR
Open with snap ring
SKF 7310-ZZ-C3
Double shielded, C3 clearance
SKF 7310-2RS-C3
Double sealed, C3 clearance
SKF 7310-C3
Open, 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?

The SKF 7310 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?

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?

The 7310 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.