51126 CT 130x170x30 mm

51126 CT 130x170x30 mm Thrust Ball Bearing

51126 CT is a single-direction thrust ball bearing with dimensions 130x170x30 mm, designed primarily to accommodate axial loads acting in one direction. The bearing has a separable construction consisting of a shaft washer, housing washer and ball-and-cage assembly, allowing the individual components to be mounted separately.

Technical data - 51126 CT

51126 bearing dimensions

The basic dimensions are:

d = 130 mm - bore diameter
D = 170 mm - outside diameter
T = 30 mm - total bearing height

Complete dimensions: 130x170x30 mm.

The dimensions 130x170x30 mm correspond to the standard 51126 bearing size. When selecting a replacement, the complete designation and bearing design should also be verified.

What is a 51126 thrust ball bearing?

The designation 51126 identifies a single-direction thrust ball bearing from the 511 series.

This type of bearing is designed primarily to accommodate axial loads, meaning forces acting parallel to the shaft axis.

Unlike radial ball bearings, a thrust ball bearing of this design is not intended to accommodate radial loads.

Construction of the 51126 CT

The 51126 CT consists of three main components:

• shaft washer
• housing washer
• ball-and-cage assembly

The washers contain raceways in which the balls operate.

The separable design allows the shaft washer, housing washer and ball-and-cage assembly to be mounted independently, simplifying installation and inspection of the bearing arrangement.

How does a thrust ball bearing work?

A thrust ball bearing transfers axial force through balls positioned between two washers with raceways.

In a single-direction thrust ball bearing, the bearing can accommodate axial load and locate the shaft axially in one direction.

If axial forces occur in both directions, the complete bearing arrangement must be designed accordingly.

Axial load capability

The 51126 CT is designed for axial loading.

Its primary function is to accommodate:

axial loads acting in one direction

The bearing should not be used as the component responsible for supporting radial loads.

Where both radial and axial loads occur in a machine, an appropriate radial bearing or another suitable bearing arrangement must be provided.

Single-direction design

The 51126 is a single-direction thrust ball bearing.

This means that it can:

• accommodate axial load in one direction
• locate a shaft axially in one direction
• operate as part of a bearing arrangement incorporating other bearings for additional load directions

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

Separable bearing construction

One important characteristic of the 51126 design is its separable construction.

The bearing components can be separated into:

shaft washer + housing washer + ball-and-cage assembly

This construction facilitates mounting because the individual components can be installed separately.

Care must be taken to ensure that the washers are installed in their correct positions.

51126 bearings from different manufacturers

The designation 51126 is used by multiple bearing manufacturers for single-direction thrust ball bearings with the standard dimensions 130x170x30 mm.

However, manufacturer-specific parameters may differ, including:

• basic dynamic load rating
• basic static load rating
• limiting speed
• reference speed
• bearing mass
• cage design and material

For this reason, catalogue values from another manufacturer should not automatically be assigned to the 51126 CT bearing.

Selecting a 51126 CT bearing

Before selecting this bearing or an equivalent product, verify:

• designation 51126 CT
• bearing type
• 130 mm bore diameter
• 170 mm outside diameter
• 30 mm height
• single-direction design
• required axial load capacity
• direction of axial load
• rotational speed
• lubrication conditions
• operating temperature
• mounting arrangement
• shaft and housing support surfaces

Matching the 130x170x30 mm dimensions alone should not be the only criterion when selecting an equivalent bearing.

Installation of the 51126 CT

Before installation, all mating surfaces and bearing components should be clean.

The shaft washer is intended to work with the rotating shaft, while the housing washer is positioned against the stationary housing component.

Because the bearing is separable, particular attention should be paid to the correct orientation and sequence of all components during assembly.

Mounting forces should not be unnecessarily transmitted through the rolling elements.

51126 CT vs radial ball bearing

A 51126 CT thrust ball bearing and a conventional radial ball bearing perform different functions.

The 51126 is primarily designed for axial loads, whereas radial ball bearings are primarily intended to accommodate loads acting perpendicular to the shaft axis.

Therefore, these bearing types should not be treated as direct substitutes simply because their bore diameters may be similar.

FAQ - 51126 CT 130x170x30

What are the dimensions of the 51126 CT?

The bearing has a 130 mm bore diameter, 170 mm outside diameter and 30 mm height. Its complete dimensions are 130x170x30 mm.

What type of bearing is 51126 CT?

It is a single-direction thrust ball bearing.

What loads can the 51126 CT accommodate?

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

Can the 51126 CT accommodate radial loads?

No. This type of thrust ball bearing is not designed to accommodate radial loads.

Is the 51126 CT a separable bearing?

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

What rolling elements are used in the 51126?

The bearing uses balls as its rolling elements.

What does single-direction mean?

It means that the bearing is designed to accommodate axial load and locate the shaft axially in one direction.

Are all 51126 bearings identical?

Not necessarily. The standard basic dimensions are 130x170x30 mm, but load ratings, speeds, cage design, mass and other manufacturer-specific parameters can differ.

51126 CT 130x170x30 - key information

51126 CT 130x170x30 mm is a single-direction thrust ball bearing designed to accommodate axial loads acting in one direction. It has a 130 mm bore, 170 mm outside diameter and 30 mm height. Its separable construction consists of a shaft washer, housing washer and ball-and-cage assembly.

Available from simmering.pl, a specialist supplier of bearings, rotary shaft seals and industrial sealing solutions. Stock in Poland with worldwide shipping.