NSK 6320-2RS-C3 Bearing — Specifications, Dimensions & Cross-Reference

The NSK 6320-2RS-C3 is a deep groove ball bearing double rubber sealed manufactured by NSK. It belongs to the 6300 series and features dimensions of 100 × 215 × 47 mm (bore × OD × width). This bearing has a dynamic load rating of 174,000 N and a static load rating of 140,000 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)100 mm
Outside Diameter (D)215 mm
Width (B)47 mm
Weight6.350 kg
Performance
Dynamic Load Rating (Cr)174,000 N
Static Load Rating (C₀r)140,000 N
Limiting Speed (Grease)3,000 rpm
Limiting Speed (Oil)3,600 rpm
💡 Application Note: The 6300 series bearings are commonly used in heavy-duty electric motors, mining equipment, construction machinery, and industrial gearboxes. The -2RS suffix indicates double rubber contact seals, providing excellent protection against dust, moisture, and contaminants — ideal for harsh operating environments.

Brand Cross-Reference — 6320-2RS-C3 Equivalents

The following bearings from other manufacturers are interchangeable with the NSK 6320-2RS-C3. All share identical dimensions (100×215×47mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
NSKNSK 6320-2RS-C3 ✦174,000140,000
Timken Timken 6320-2RS-C3 174,000 140,000
SKF SKF 6320-2RS-C3 174,000 140,000
NTN NTN 6320-2RS-C3 174,000 140,000
NACHI NACHI 6320-2RS-C3 174,000 140,000
KOYO KOYO 6320-2RS-C3 174,000 140,000
FAG FAG 6320-2RS-C3 174,000 140,000
Timken Timken 6320-2RS-C3 174,000 140,000
NTN NTN 6320-2RS-C3 174,000 140,000
SKF SKF 6320-2RS-C3 174,000 140,000

Available Variants

The NSK 6320 base bearing is available in these configurations:

NSK 6320-NR
Open with snap ring
NSK 6320-ZZ-C3
Double shielded, C3 clearance
NSK 6320-C3
Open, C3 clearance
NSK 6320-2Z
Double metal shielded (ISO)
NSK 6320-ZZ
Double metal shielded
NSK 6320-2RS
Double rubber sealed
NSK 6320
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NSK 6320-2RS-C3?

The NSK 6320-2RS-C3 has a bore diameter of 100mm, outside diameter of 215mm, and width of 47mm. It weighs 6.350kg.

What is the load capacity of the NSK 6320-2RS-C3?

The dynamic load rating (Cr) is 174,000 N and the static load rating (C₀r) is 140,000 N. The maximum recommended speed is 3,000 rpm with grease lubrication or 3,600 rpm with oil lubrication.

What bearings are equivalent to NSK 6320-2RS-C3?

The 6320-2RS-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 100×215×47mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.