NACHI 51107-2RS Bearing — Specifications, Dimensions & Cross-Reference

The NACHI 51107-2RS is a thrust ball bearing double rubber sealed manufactured by NACHI. It belongs to the 51100 series and features dimensions of 35 × 52 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 19,000 N and a static load rating of 16,600 N, making it suitable for medium-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)35 mm
Outside Diameter (D)52 mm
Width (B)12 mm
Weight0.073 kg
Performance
Dynamic Load Rating (Cr)19,000 N
Static Load Rating (C₀r)16,600 N
Limiting Speed (Grease)5,300 rpm
Limiting Speed (Oil)7,000 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 — 51107-2RS Equivalents

The following bearings from other manufacturers are interchangeable with the NACHI 51107-2RS. All share identical dimensions (35×52×12mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
NACHINACHI 51107-2RS ✦19,00016,600
Timken Timken 51107-2RS 19,000 16,600
SKF SKF 51107-2RS 19,000 16,600
KOYO KOYO 51107-2RS 19,000 16,600
Timken Timken 51107-2RS 19,000 16,600
FAG FAG 51107-2RS 19,000 16,600
NSK NSK 51107-2RS 19,000 16,600
SKF SKF 51107-2RS 19,000 16,600
NTN NTN 51107-2RS 19,000 16,600

Available Variants

The NACHI 51107 base bearing is available in these configurations:

NACHI 51107-ZZ-C3
"Double shielded
NACHI 51107-ZZ
Double metal shielded
NACHI 51107-NR
Open with snap ring
NACHI 51107-2Z
Double metal shielded (ISO)
NACHI 51107-2RS-C3
"Double sealed
NACHI 51107
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NACHI 51107-2RS?

The NACHI 51107-2RS has a bore diameter of 35mm, outside diameter of 52mm, and width of 12mm. It weighs 0.073kg.

What is the load capacity of the NACHI 51107-2RS?

The dynamic load rating (Cr) is 19,000 N and the static load rating (C₀r) is 16,600 N. The maximum recommended speed is 5,300 rpm with grease lubrication or 7,000 rpm with oil lubrication.

What bearings are equivalent to NACHI 51107-2RS?

The 51107-2RS is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 35×52×12mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.