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NSK thrust ball bearing · NSK 51430 X
NSK 51430 X thrust ball bearing

NSKBrand we market

NSK 51430 X thrust ball bearing

Manufacturer Part Number51430 XDimensions: 150 x 300 x 120 mm (d x D x H)Also searched as: 51430X · 51430-XNSK 514 series: dimension table →
Brand
NSK
Category
Bearings
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Since 1945 · Martínez, Buenos Aires, Argentina

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How to read NSK 51430 X

514Series
Thrust ball bearings, 514 series. For the same bore, each series has a different outside diameter and width.
30Bore
150 mm bore: 30 × 5.
XSuffix
NSK suffix: it defines the variant (sealing, cage, internal clearance or other features).

51430 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The NSK 51430 X bearing has a 150 mm bore, a 300 mm outside diameter and a 120 mm height (150 x 300 x 120 mm).

NSK 51430 X is a reference of thrust ball bearing, within Bearings. Request a quote for 51430 X via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NSK thrust ball bearing is a component designed to support predominantly axial loads in one direction. It is used in applications requiring high axial load capacity and rigidity, such as gearboxes, pumps and industrial equipment. Its ball and ring design allows smooth operation and a long service life. MR Accesorios Industriales sells this series with technical advice to select the right size for each application.

The series designation is interpreted as follows: the first digits indicate the type of single-direction thrust ball bearing, and the X suffix indicates a design modification, generally related to the shape of the rings or the cage. For example, the sample codes correspond to bearings in this series with different dimensions. Knowing this nomenclature makes identification easier when requesting a quote.

These bearings are used in industries such as metallurgy, petrochemicals, food processing and power generation. In Argentina, they are common in centrifugal pumps, gear reducers, machine tools and lifting equipment. Their ability to support axial loads makes them suitable for applications where thrust is unidirectional and rotational precision is required.

To select the right thrust ball bearing, it is essential to consider the axial load to be supported, the rotational speed and the environmental conditions. Mounting must ensure correct alignment between the rings and the support surface, avoiding misalignments that reduce service life. Proper lubrication, whether with grease or oil, is essential to minimize friction and wear. In addition, axial clearance and sealing must be checked according to the working environment.

As for equivalents and interchangeability, thrust ball bearings from different manufacturers may show variations in dimensions and load capacities. For this reason, it is advisable to verify the technical specifications before replacing one bearing with another of a different brand. MR Accesorios Industriales can advise you to find the alternative compatible with your application.

If you need a quote for an NSK thrust ball bearing, send us the code or the dimensions via WhatsApp. At MR Accesorios Industriales we provide personalized attention and quote you promptly. We can also advise you on installation and maintenance to maximize the performance of your equipment.

Dimensions

Boundary dimensions of the basic designation 51430 per ISO 104: 150 x 300 x 120 mm (d x D x H).

Bore
150 mm
Outside diameter (D)
300mm
Height (H)
120mm

Same size in SKF and other brands

Pages from other brands with the basic designation 51430: 150 x 300 x 120 mm (d x D x H) per ISO 104.

They share the boundary dimensions set by ISO 104, not the technical data: seals or shields, internal clearance, cage and load rating can differ by brand and suffix. We quote each one by its full part number.

Frequently Asked Questions

What are the dimensions of the NSK 51430 X bearing?
The NSK 51430 X bearing has a 150 mm bore, a 300 mm outside diameter and a 120 mm height (150 x 300 x 120 mm). These are the standardised boundary dimensions (ISO 104) of the basic designation 51430.
What does the X suffix in the series mean?
The X suffix indicates a modification in the bearing design, which may refer to the shape of the rings or the type of cage. To learn the specific characteristics of each size, contact us with the full code.
How do I select the right thrust ball bearing?
You should consider the axial load, the rotational speed and the working conditions. It is also important to verify the mounting dimensions and the type of lubrication. Our technical team can help you choose the best option.
Are NSK bearings of this series interchangeable with other brands?
Equivalents from other brands may exist, but it is essential to verify the dimensions and load capacities. Not all brands use the same nomenclature. Contact us with the code and we will advise you.
Request a quote for 51430 X via WhatsApp
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