SKF 6315-NR Bearing — Specifications, Dimensions & Cross-Reference

The SKF 6315-NR is a deep groove ball bearing with snap ring groove manufactured by SKF. It belongs to the 6300 series and features dimensions of 75 × 160 × 37 mm (bore × OD × width). This bearing has a dynamic load rating of 114,000 N and a static load rating of 76,500 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)75 mm
Outside Diameter (D)160 mm
Width (B)37 mm
Weight2.860 kg
Performance
Dynamic Load Rating (Cr)114,000 N
Static Load Rating (C₀r)76,500 N
Limiting Speed (Grease)4,300 rpm
Limiting Speed (Oil)5,000 rpm
💡 Application Note: The 6300 series bearings are commonly used in heavy-duty electric motors, mining equipment, construction machinery, and industrial gearboxes. The -NR suffix indicates an external snap ring groove on the outer ring, allowing easy axial location in housing bores.

Brand Cross-Reference — 6315-NR Equivalents

The following bearings from other manufacturers are interchangeable with the SKF 6315-NR. All share identical dimensions (75×160×37mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
SKFSKF 6315-NR ✦114,00076,500
Timken Timken 6315-NR 114,000 76,500
NTN NTN 6315-NR 114,000 76,500
NACHI NACHI 6315-NR 114,000 76,500
KOYO KOYO 6315-NR 114,000 76,500
FAG FAG 6315-NR 114,000 76,500
Timken Timken 6315-NR 114,000 76,500
NSK NSK 6315-NR 114,000 76,500
NTN NTN 6315-NR 114,000 76,500
SKF SKF 6315-NR 114,000 76,500

Available Variants

The SKF 6315 base bearing is available in these configurations:

SKF 6315-ZZ-C3
"Double shielded
SKF 6315-ZZ
Double metal shielded
SKF 6315-C3
"Open
SKF 6315-2Z
Double metal shielded (ISO)
SKF 6315-2RS-C3
"Double sealed
SKF 6315-2RS
Double rubber sealed
SKF 6315
Open (no seal/shield)
SKF 6315-NR
Open with snap ring
SKF 6315-ZZ-C3
Double shielded, C3 clearance
SKF 6315-2RS-C3
Double sealed, C3 clearance
SKF 6315-C3
Open, C3 clearance
SKF 6315-2Z
Double metal shielded (ISO)
SKF 6315-ZZ
Double metal shielded
SKF 6315-2RS
Double rubber sealed
SKF 6315
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the SKF 6315-NR?

The SKF 6315-NR has a bore diameter of 75mm, outside diameter of 160mm, and width of 37mm. It weighs 2.860kg.

What is the load capacity of the SKF 6315-NR?

The dynamic load rating (Cr) is 114,000 N and the static load rating (C₀r) is 76,500 N. The maximum recommended speed is 4,300 rpm with grease lubrication or 5,000 rpm with oil lubrication.

What bearings are equivalent to SKF 6315-NR?

The 6315-NR is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 75×160×37mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.