FAG 7310-ZZ-C3 Bearing — Specifications, Dimensions & Cross-Reference

The FAG 7310-ZZ-C3 is a angular contact ball bearing double metal shielded manufactured by FAG. 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
Weight	1.056 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 -ZZ suffix indicates double metal shields, offering good protection while maintaining lower friction than rubber seals — suitable for higher speed applications.

Brand Cross-Reference — 7310-ZZ-C3 Equivalents

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

Brand	Part Number	Dynamic Load (N)	Static Load (N)
FAG	FAG 7310-ZZ-C3 ✦	63,700	40,500
SKF	SKF 7310-ZZ-C3	63,700	40,500
NTN	NTN 7310-ZZ-C3	63,700	40,500
KOYO	KOYO 7310-ZZ-C3	63,700	40,500
NACHI	NACHI 7310-ZZ-C3	63,700	40,500
Timken	Timken 7310-ZZ-C3	63,700	40,500
NSK	NSK 7310-ZZ-C3	63,700	40,500
NTN	NTN 7310-ZZ-C3	63,700	40,500
SKF	SKF 7310-ZZ-C3	63,700	40,500

Available Variants

The FAG 7310 base bearing is available in these configurations:

FAG 7310-ZZ

Double metal shielded

FAG 7310-NR

Open with snap ring

FAG 7310-C3

"Open

FAG 7310-2Z

Double metal shielded (ISO)

FAG 7310-2RS-C3

"Double sealed

FAG 7310-2RS

Double rubber sealed

FAG 7310

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the FAG 7310-ZZ-C3?

The FAG 7310-ZZ-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 FAG 7310-ZZ-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 FAG 7310-ZZ-C3?

The 7310-ZZ-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.