KOYO 51102-2RS-C3 Bearing — Specifications, Dimensions & Cross-Reference

The KOYO 51102-2RS-C3 is a thrust ball bearing double rubber sealed manufactured by KOYO. It belongs to the 51100 series and features dimensions of 15 × 28 × 9 mm (bore × OD × width). This bearing has a dynamic load rating of 8,830 N and a static load rating of 6,000 N, making it suitable for light-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)15 mm
Outside Diameter (D)28 mm
Width (B)9 mm
Weight0.024 kg
Performance
Dynamic Load Rating (Cr)8,830 N
Static Load Rating (C₀r)6,000 N
Limiting Speed (Grease)9,500 rpm
Limiting Speed (Oil)12,000 rpm
💡 Application Note: The 51100 series bearings are commonly used in automotive steering mechanisms, machine tool tables, and applications with pure axial loads. The -2RS suffix indicates double rubber contact seals, providing excellent protection against dust, moisture, and contaminants — ideal for harsh operating environments.

Brand Cross-Reference — 51102-2RS-C3 Equivalents

The following bearings from other manufacturers are interchangeable with the KOYO 51102-2RS-C3. All share identical dimensions (15×28×9mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
KOYOKOYO 51102-2RS-C3 ✦8,8306,000
Timken Timken 51102-2RS-C3 8,830 6,000
SKF SKF 51102-2RS-C3 8,830 6,000
NACHI NACHI 51102-2RS-C3 8,830 6,000
Timken Timken 51102-2RS-C3 8,830 6,000
FAG FAG 51102-2RS-C3 8,830 6,000
NSK NSK 51102-2RS-C3 8,830 6,000
NTN NTN 51102-2RS-C3 8,830 6,000
SKF SKF 51102-2RS-C3 8,830 6,000

Available Variants

The KOYO 51102 base bearing is available in these configurations:

KOYO 51102-ZZ-C3
"Double shielded
KOYO 51102-ZZ
Double metal shielded
KOYO 51102-NR
Open with snap ring
KOYO 51102-2Z
Double metal shielded (ISO)
KOYO 51102-2RS
Double rubber sealed
KOYO 51102
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the KOYO 51102-2RS-C3?

The KOYO 51102-2RS-C3 has a bore diameter of 15mm, outside diameter of 28mm, and width of 9mm. It weighs 0.024kg.

What is the load capacity of the KOYO 51102-2RS-C3?

The dynamic load rating (Cr) is 8,830 N and the static load rating (C₀r) is 6,000 N. The maximum recommended speed is 9,500 rpm with grease lubrication or 12,000 rpm with oil lubrication.

What bearings are equivalent to KOYO 51102-2RS-C3?

The 51102-2RS-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 15×28×9mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.