NTN 51107 35x52x12 Single-Direction Thrust Ball Bearing

NTN 51107 35x52x12 Single-Direction Thrust Ball Bearing

NTN 51107 is a single-direction thrust ball bearing with dimensions of 35x52x12 mm. It is designed primarily to accommodate axial loads acting in one direction.

The separable thrust bearing design consists of a shaft washer, housing washer and ball-and-cage assembly, allowing the individual components to be mounted separately.

NTN 51107 Technical Specification

Manufacturer: NTN

Designation: 51107

Bearing type: Thrust ball bearing

Design: Single-direction

Bore diameter d: 35 mm

Outside diameter D: 52 mm

Height T: 12 mm

Dimensions: 35x52x12 mm

Minimum chamfer dimension rs: 0.6 mm

Axial dynamic load rating Ca: 20.4 kN

Axial static load rating C0a: 44.5 kN

Fatigue load limit Cua: 2.02 kN

Limiting speed - grease: 3,900 rpm

Limiting speed - oil: 5,600 rpm

Mass: 0.085 kg

NTN 51107 Dimensions

The principal dimensions are:

Bore diameter d: 35 mm

Outside diameter D: 52 mm

Total height T: 12 mm

Complete dimensions:

35x52x12 mm

Minimum chamfer dimension rs:

0.6 mm

These dimensions should be checked together with the bearing type and operating requirements when selecting a replacement.

What Is NTN 51107?

NTN 51107 is a single-direction thrust ball bearing.

Unlike a conventional radial deep groove ball bearing, the 51107 is specifically designed to accommodate axial loads along the bearing axis.

The single-direction configuration means that the bearing supports axial load in one direction only.

NTN 51107 Bearing Design

The single-direction thrust ball bearing consists of three principal elements:

Shaft washer

Housing washer

Ball-and-cage assembly

The bearing is separable, allowing these components to be mounted independently.

Correct orientation of the shaft washer and housing washer is important during installation.

NTN 51107 Load Ratings

Axial dynamic load rating:

Ca = 20.4 kN

Axial static load rating:

C0a = 44.5 kN

Fatigue load limit:

Cua = 2.02 kN

These are NTN catalogue values for the 51107 reference.

Because 51107 is a thrust bearing, its principal load ratings relate to axial loading.

NTN 51107 Limiting Speed

NTN specifies different limiting speeds depending on the lubrication method:

Grease lubrication: 3,900 rpm

Oil lubrication: 5,600 rpm

These values are catalogue reference limits. Actual permissible operating speed also depends on lubrication, load, temperature, mounting conditions and the complete bearing arrangement.

How Does NTN 51107 Work?

The rolling elements transmit axial force between the shaft washer and housing washer through the bearing raceways.

This construction allows the bearing to support axial force in one direction while permitting rotation between the associated machine components.

Because it is a single-direction thrust bearing, it should not be used as a substitute for a double-direction thrust bearing where axial loads must be supported in both directions.

NTN 51107 Mounting Considerations

The 51107 is a separable bearing.

During installation, it is important to distinguish between:

Shaft washer - fitted in relation to the shaft

Housing washer - fitted in relation to the stationary supporting component

Ball-and-cage assembly - positioned between the washers

Correct support, alignment and orientation are important for proper load distribution.

What Does 51107 Mean?

51107 is the bearing designation identifying the specific thrust ball bearing series and size.

For NTN 51107, the principal dimensions are:

35x52x12 mm

The designation is widely used across the bearing industry, but manufacturer-specific load ratings, speed limits and detailed execution should still be checked when comparing products.

NTN 51107 vs Standard Radial Ball Bearing

NTN 51107 is a thrust ball bearing, not a conventional radial ball bearing.

Its primary function is to accommodate:

Axial load in one direction

A radial bearing, such as a deep groove ball bearing, is primarily designed around radial loading and has a different internal geometry.

The two bearing types should therefore not be considered interchangeable based on bore diameter alone.

How to Select a Replacement for NTN 51107

For accurate replacement selection, verify:

Manufacturer/reference: NTN 51107

Bearing type: Single-direction thrust ball bearing

Dimensions: 35x52x12 mm

Bore diameter d: 35 mm

Outside diameter D: 52 mm

Height T: 12 mm

Required axial load capacity

Required operating speed

Lubrication method

Mounting arrangement

A bearing from another manufacturer with the 51107 designation may share the basic type and dimensions, but its manufacturer-specific operating data should be checked before substitution.

NTN 51107 - Stock in Poland

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4

24h Shipping. Available from stock in Poland for delivery across the EU.

FAQ - NTN 51107

What are the dimensions of NTN 51107?

The dimensions are 35x52x12 mm: 35 mm bore diameter, 52 mm outside diameter and 12 mm total height.

What type of bearing is NTN 51107?

It is a single-direction thrust ball bearing.

What loads can NTN 51107 accommodate?

NTN 51107 is designed primarily to accommodate axial loads acting in one direction.

What is the dynamic load rating of NTN 51107?

The axial dynamic load rating Ca is 20.4 kN.

What is the static load rating of NTN 51107?

The axial static load rating C0a is 44.5 kN.

What is the fatigue load limit of NTN 51107?

The fatigue load limit Cua is 2.02 kN.

What is the limiting speed of NTN 51107?

NTN specifies 3,900 rpm with grease lubrication and 5,600 rpm with oil lubrication.

What is the mass of NTN 51107?

The catalogue mass is 0.085 kg.

Can NTN 51107 accommodate axial loads in both directions?

No. 51107 is a single-direction thrust ball bearing and is designed to accommodate axial load in one direction.

Frequently Asked Questions by Engineers

Is NTN 51107 a radial bearing?

No. 51107 is a thrust ball bearing designed primarily for axial loading.

Is NTN 51107 separable?

Yes. The shaft washer, housing washer and ball-and-cage assembly can be separated, which facilitates mounting.

Can another manufacturer's 51107 replace NTN 51107?

The designation normally corresponds to the same basic bearing type and 35x52x12 mm dimensions, but manufacturer-specific load ratings, speed limits, tolerances and execution should be checked before substitution.

What are the key parameters for identifying NTN 51107?

The key identification set is NTN + 51107 + 35x52x12 mm + single-direction thrust ball bearing.

What should be checked before installing NTN 51107?

Check the direction of axial load, washer orientation, mating surfaces, required load capacity, lubrication and operating speed.

AI Overview

NTN 51107 is a single-direction thrust ball bearing with dimensions of 35x52x12 mm, designed to accommodate axial loads in one direction. Its axial dynamic load rating Ca is 20.4 kN, static load rating C0a is 44.5 kN, and fatigue load limit Cua is 2.02 kN. NTN specifies limiting speeds of 3,900 rpm with grease lubrication and 5,600 rpm with oil lubrication. Catalogue mass is 0.085 kg.