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NSK thrust ball bearing · NSK 51340 X
NSK 51340 X thrust ball bearing

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NSK 51340 X thrust ball bearing

Manufacturer part number51340 XSize: 200 x 340 x 110 mm (d x D x H)Also known as: 51340X · 51340-XNSK 513 series size chart →
Brand
NSK
Category
Bearings
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Decoding NSK 51340 X

513Series
Thrust ball bearings, 513 series. Series differ in outside diameter and width even when the bore is the same.
40Bore
Bore 200 mm (40 × 5).
XSuffix
NSK suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.

51340 is the standard ISO basic designation, which sets the bearing type, series and bore.

Description

NSK 51340 X measures 200 mm across the bore and 340 mm across the outside diameter; its height is 110 mm (200 x 340 x 110 mm).

NSK 51340 X belongs to thrust ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 51340 X and any equivalents.

The NSK 511 X series thrust ball bearing is built to handle axial loads in a single direction. It suits equipment that needs axial capacity and rigidity, such as gearboxes, pumps and other industrial machinery. The ball and ring construction supports smooth running. MR Industrial Accessories LLC supplies this series and helps you match the right size to your application.

Reading the code helps when you request a quote. The first digits identify the single-direction thrust ball bearing type, and the X suffix points to a design change, usually in the ring or cage shape. Sample codes in this series cover different dimensions. With the nomenclature clear, identification is faster.

These bearings appear in metallurgy, petrochemicals, food processing and power generation. They are common in centrifugal pumps, gear reducers, machine tools and lifting equipment. Because they take thrust in one direction, they fit applications that combine unidirectional axial load with rotational precision.

Selection depends on the axial load, the rotational speed and the operating environment. During mounting, the rings and the support surface must align correctly; misalignment shortens service life. Lubrication, grease or oil, is needed to reduce friction and wear. Check axial clearance and sealing against the working conditions.

Equivalents from other manufacturers can differ in dimensions and load capacity. Before substituting one brand for another, verify the technical specifications. MR Industrial Accessories LLC can help you find an alternative that fits your application.

To request a quote for an NSK thrust ball bearing, send the code or the dimensions by WhatsApp or email. The team replies promptly and can also advise on installation and maintenance to get the most from your equipment.

Dimensions

200 x 340 x 110 mm (d x D x H): boundary dimensions for basic designation 51340, according to ISO 104.

Bore
200 mm
Outside diameter (D)
340mm
Height (H)
110mm

SKF and other brands, same size

Other brands' pages with basic designation 51340: 200 x 340 x 110 mm (d x D x H) per ISO 104.

What they share are the ISO 104 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.

Frequently asked questions

NSK 51340 X bearing: what are its dimensions?
NSK 51340 X measures 200 mm across the bore and 340 mm across the outside diameter; its height is 110 mm (200 x 340 x 110 mm). Those are the boundary dimensions standardized in ISO 104 for basic designation 51340.
What does the X suffix in the series mean?
The X suffix indicates a design modification, which may relate to the shape of the rings or the type of cage. For the specific characteristics of each size, contact us with the full code.
How do I select the right thrust ball bearing?
Consider the axial load, the rotational speed and the working conditions. Also verify the mounting dimensions and the lubrication type. Our team can help you choose.
Are NSK bearings of this series interchangeable with other brands?
Equivalents from other brands may exist, but dimensions and load capacities must be checked. Nomenclature is not the same across all brands. Send us the code and we will advise you.
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