FAG 7304 Bearing — Specifications, Dimensions & Cross-Reference

The FAG 7304 is a angular contact ball bearing manufactured by FAG. It belongs to the 7300 series and features dimensions of 20 × 52 × 15 mm (bore × OD × width). This bearing has a dynamic load rating of 15,900 N and a static load rating of 7,800 N, making it suitable for medium-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)20 mm
Outside Diameter (D)52 mm
Width (B)15 mm
Weight0.138 kg
Performance
Dynamic Load Rating (Cr)15,900 N
Static Load Rating (C₀r)7,800 N
Limiting Speed (Grease)13,000 rpm
Limiting Speed (Oil)16,000 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 — 7304 Equivalents

The following bearings from other manufacturers are interchangeable with the FAG 7304. All share identical dimensions (20×52×15mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
FAGFAG 7304 ✦15,9007,800
SKF SKF 7304 15,900 7,800
NTN NTN 7304 15,900 7,800
KOYO KOYO 7304 15,900 7,800
NACHI NACHI 7304 15,900 7,800
Timken Timken 7304 15,900 7,800
NSK NSK 7304 15,900 7,800
NTN NTN 7304 15,900 7,800
SKF SKF 7304 15,900 7,800

Available Variants

The FAG 7304 base bearing is available in these configurations:

FAG 7304-ZZ-C3
"Double shielded
FAG 7304-ZZ
Double metal shielded
FAG 7304-NR
Open with snap ring
FAG 7304-C3
"Open
FAG 7304-2Z
Double metal shielded (ISO)
FAG 7304-2RS-C3
"Double sealed
FAG 7304-2RS
Double rubber sealed

Frequently Asked Questions

What are the dimensions of the FAG 7304?

The FAG 7304 has a bore diameter of 20mm, outside diameter of 52mm, and width of 15mm. It weighs 0.138kg.

What is the load capacity of the FAG 7304?

The dynamic load rating (Cr) is 15,900 N and the static load rating (C₀r) is 7,800 N. The maximum recommended speed is 13,000 rpm with grease lubrication or 16,000 rpm with oil lubrication.

What bearings are equivalent to FAG 7304?

The 7304 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 20×52×15mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.