Timken 51101 Bearing — Specifications, Dimensions & Cross-Reference

The Timken 51101 is a thrust ball bearing manufactured by Timken. It belongs to the 51100 series and features dimensions of 12 × 26 × 9 mm (bore × OD × width). This bearing has a dynamic load rating of 8,710 N and a static load rating of 5,730 N, making it suitable for light-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)12 mm
Outside Diameter (D)26 mm
Width (B)9 mm
Weight0.022 kg
Performance
Dynamic Load Rating (Cr)8,710 N
Static Load Rating (C₀r)5,730 N
Limiting Speed (Grease)10,000 rpm
Limiting Speed (Oil)13,000 rpm
💡 Application Note: The 51100 series bearings are commonly used in automotive steering mechanisms, machine tool tables, and applications with pure axial loads.

Brand Cross-Reference — 51101 Equivalents

The following bearings from other manufacturers are interchangeable with the Timken 51101. All share identical dimensions (12×26×9mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
TimkenTimken 51101 ✦8,7105,730
Timken Timken 51101 8,710 5,730
SKF SKF 51101 8,710 5,730
NACHI NACHI 51101 8,710 5,730
KOYO KOYO 51101 8,710 5,730
FAG FAG 51101 8,710 5,730
NSK NSK 51101 8,710 5,730
SKF SKF 51101 8,710 5,730
NTN NTN 51101 8,710 5,730

Available Variants

The Timken 51101 base bearing is available in these configurations:

Timken 51101-ZZ-C3
"Double shielded
Timken 51101-ZZ
Double metal shielded
Timken 51101-NR
Open with snap ring
Timken 51101-2Z
Double metal shielded (ISO)
Timken 51101-2RS-C3
"Double sealed
Timken 51101-2RS
Double rubber sealed
Timken 51101
Open (no seal/shield)
Timken 51101-NR
Open with snap ring
Timken 51101-ZZ-C3
Double shielded, C3 clearance
Timken 51101-2RS-C3
Double sealed, C3 clearance
Timken 51101-C3
Open, C3 clearance
Timken 51101-2Z
Double metal shielded (ISO)
Timken 51101-ZZ
Double metal shielded
Timken 51101-2RS
Double rubber sealed

Frequently Asked Questions

What are the dimensions of the Timken 51101?

The Timken 51101 has a bore diameter of 12mm, outside diameter of 26mm, and width of 9mm. It weighs 0.022kg.

What is the load capacity of the Timken 51101?

The dynamic load rating (Cr) is 8,710 N and the static load rating (C₀r) is 5,730 N. The maximum recommended speed is 10,000 rpm with grease lubrication or 13,000 rpm with oil lubrication.

What bearings are equivalent to Timken 51101?

The 51101 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 12×26×9mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.