Timken 6306 Bearing — Specifications, Dimensions & Cross-Reference

The Timken 6306 is a deep groove ball bearing manufactured by Timken. It belongs to the 6300 series and features dimensions of 30 × 72 × 19 mm (bore × OD × width). This bearing has a dynamic load rating of 28,100 N and a static load rating of 16,000 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)30 mm
Outside Diameter (D)72 mm
Width (B)19 mm
Weight0.327 kg
Performance
Dynamic Load Rating (Cr)28,100 N
Static Load Rating (C₀r)16,000 N
Limiting Speed (Grease)9,000 rpm
Limiting Speed (Oil)11,000 rpm
💡 Application Note: The 6300 series bearings are commonly used in heavy-duty electric motors, mining equipment, construction machinery, and industrial gearboxes.

Brand Cross-Reference — 6306 Equivalents

The following bearings from other manufacturers are interchangeable with the Timken 6306. All share identical dimensions (30×72×19mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
TimkenTimken 6306 ✦28,10016,000
SKF SKF 6306 28,100 16,000
NTN NTN 6306 28,100 16,000
NACHI NACHI 6306 28,100 16,000
KOYO KOYO 6306 28,100 16,000
FAG FAG 6306 28,100 16,000
Timken Timken 6306 28,100 16,000
NSK NSK 6306 28,100 16,000
NTN NTN 6306 28,100 16,000
SKF SKF 6306 28,100 16,000

Available Variants

The Timken 6306 base bearing is available in these configurations:

Timken 6306-ZZ-C3
"Double shielded
Timken 6306-ZZ
Double metal shielded
Timken 6306-NR
Open with snap ring
Timken 6306-2Z
Double metal shielded (ISO)
Timken 6306-2RS-C3
"Double sealed
Timken 6306-2RS
Double rubber sealed
Timken 6306-NR
Open with snap ring
Timken 6306-ZZ-C3
Double shielded, C3 clearance
Timken 6306-2RS-C3
Double sealed, C3 clearance
Timken 6306-C3
Open, C3 clearance
Timken 6306-2Z
Double metal shielded (ISO)
Timken 6306-ZZ
Double metal shielded
Timken 6306-2RS
Double rubber sealed
Timken 6306
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the Timken 6306?

The Timken 6306 has a bore diameter of 30mm, outside diameter of 72mm, and width of 19mm. It weighs 0.327kg.

What is the load capacity of the Timken 6306?

The dynamic load rating (Cr) is 28,100 N and the static load rating (C₀r) is 16,000 N. The maximum recommended speed is 9,000 rpm with grease lubrication or 11,000 rpm with oil lubrication.

What bearings are equivalent to Timken 6306?

The 6306 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 30×72×19mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.