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NTN thrust ball bearings

An NTN thrust ball bearing is described in relation to its shaft and the surfaces receiving thrust. Axial does not mean that the machine must stand vertically; it describes load direction relative to the rotating shaft. This distinction helps interpret an exploded drawing and prevents a similarly sized bearing from another family being treated as a substitute.

See all NTN bearings references →NTN guide →Thrust ball bearings from all brands →NTN tapered roller bearings →NTN angular contact bearings →

Series with dimension tables

Reading the designation

Catalog references include 51100, 51101, 51102 and 511/500. Copy each designation in full, including any slash. These examples identify products but do not define the entire support arrangement or operating conditions.

If parts separate during dismantling, keep them associated with their original position. Photograph both faces and preserve inscriptions to describe the removed assembly. Do not combine parts from different positions simply because they appear to fit.

Application and mounting position

At a thrust position, document which component transmits the force and where the assembly seats. The equipment drawing can show the sequence of parts, neighbouring supports and elements controlling axial position. This context is more informative than a dimension measured from one loose component.

State whether the mounting was previously modified or whether the repair follows a documented arrangement. Record wear marks and seat condition as observations without turning them into an automatic diagnosis. Replacement selection and failure investigation are related but require different information.

Information for a quote

Request a quote from MR with the NTN code, quantity and position description. Add photographs of the dismantled assembly and identify the parts required. When only measurements are available, label each on a sketch and distinguish drawing values from measurements taken on the removed part.

Does axial mean the shaft must be vertical?

No. It describes load direction relative to the shaft, regardless of machine orientation.

Can diameter alone identify the bearing?

No. Add the designation, assembly dimensions and position information.

What should I do with separated parts?

Keep them labelled by position and photograph the group and both faces to document the original assembly.

Products 402 results

Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.

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Main series

NTN thrust ball bearings

The NTN thrust ball bearing is a component designed to withstand predominantly axial loads in one direction. It consists of two washers, one shaft washer and one housing washer, and a row of balls that rotates between them. It is used in applications where the main load is vertical, such as conveyor belts, mixers, centrifugal pumps and lifting equipment. MR Accesorios Industriales sells these products and advises you on choosing the correct part number.

Some codes:511/500511/530511005110151102

NTN 5629 angular contact thrust ball bearings

NTN 5629 series angular contact thrust ball bearings are components designed to carry predominantly axial loads in one direction, with a higher load capacity than conventional thrust ball bearings. They are used in applications requiring high axial rigidity and precision, such as machine tool spindles, rotary tables and measuring equipment. MR Accesorios Industriales sells this series.

Some codes:562005562006562007562008562009

NTN 5629 series thrust ball bearing

The NTN 5629 series angular contact thrust ball bearing is a component designed to withstand predominantly axial loads in one direction, with a load capacity higher than that of conventional thrust ball bearings. It is used in applications requiring high precision and axial rigidity, such as machine tool spindles, rotary tables and measuring equipment. MR Accesorios Industriales sells this series in Buenos Aires, Argentina, and advises you on selecting the right configuration for your application.

Some codes:562005MM562006MM562007MM562008MM562009MM

Send us the NTN part number

Just the manufacturer part number is enough: we will quote it and provide dimensions and equivalents via WhatsApp or email.

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