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NSK angular contact ball bearing · NSK 7310 AW
NSK 7310 AW angular contact ball bearing

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NSK 7310 AW angular contact ball bearing

Manufacturer Part Number7310 AWDimensions: 50 x 110 x 27 mm (d x D x B)Other bearings 50 x 110 x 27 mm →Also searched as: 7310AW · 7310-AWNSK 73 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 7310 AW

73Series
Angular contact ball bearings, 73 series. For the same bore, each series has a different outside diameter and width.
10Bore
50 mm bore: 10 × 5.
AWSuffix
NSK suffix: it defines the variant (sealing, cage, internal clearance or other features).

7310 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The NSK 7310 AW bearing has a 50 mm bore, a 110 mm outside diameter and a 27 mm width (50 x 110 x 27 mm).

NSK 7310 AW is a reference of angular contact ball bearing, within Bearings. Request a quote for 7310 AW via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NSK AW series angular contact ball bearing is a component designed to support combined radial and axial loads in a single direction. Its contact angle design allows high speeds and greater rigidity than a deep groove ball bearing. It is used in applications requiring precision and load capacity, such as machine tool spindles, pumps, compressors and gearboxes. At MR Accesorios Industriales we sell this series with NSK quality.

The AW series designation is interpreted as follows: the first digits indicate the size, where the first two digits correspond to the bore diameter according to a code (for example, 70 in 7000 AW equals a 10 mm bore). The AW suffix indicates a polyamide cage reinforced with fiberglass, suitable for high speeds and moderate temperatures. Examples such as 7000 AW, 7002 AW or 7013 AW show how the size varies within the same series. Learn more about this nomenclature by consulting MR.

These bearings are used in Argentine industries such as metalworking, food, petrochemical and automotive. Typical applications include main spindles of milling machines and lathes, centrifugal pumps, screw compressors, gearboxes and power transmission equipment. Their ability to support axial loads in one direction makes them ideal for paired arrangements, where two bearings are combined to absorb forces in both directions. MR Accesorios Industriales sells them throughout the country.

To correctly select an angular contact bearing, take into account the direction of the axial load, the rotation speed and the environmental conditions. Mounting requires precise alignment and, in many cases, controlled axial adjustment to achieve the proper internal clearance. Lubrication can be with grease or oil, depending on the application; at high speeds oil is recommended. Sealing will depend on environmental contamination. If you need advice, the MR technical team will indicate the best option for your equipment.

As for equivalences, angular contact bearings from other brands can be interchanged if dimensions and contact angle match. However, not all suffixes are equivalent: the AW from NSK may have its counterpart in other nomenclatures, but it is essential to verify tolerances and clearance. If you have the code from another brand, we can help you find the right replacement. It is always advisable to consult specialists before replacing a critical bearing.

To request a quote for the NSK AW series bearing you need, send the complete code by WhatsApp to MR Accesorios Industriales. We will reply shortly with availability and commercial terms. We can also advise you if you have doubts about the designation or mounting. MR is your reliable partner for precision industrial components.

Dimensions

Boundary dimensions of the basic designation 7310 per ISO 15: 50 x 110 x 27 mm (d x D x B).

Bore
50 mm
Outside diameter (D)
110mm
Width (B)
27mm

Same size in SKF and other brands

Pages from other brands with the basic designation 7310: 50 x 110 x 27 mm (d x D x B) per ISO 15.

They share the boundary dimensions set by ISO 15, 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 7310 AW bearing?
The NSK 7310 AW bearing has a 50 mm bore, a 110 mm outside diameter and a 27 mm width (50 x 110 x 27 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 7310.
What does the AW suffix mean on an NSK bearing?
The AW suffix indicates a polyamide cage reinforced with fiberglass, suitable for high speeds and moderate temperatures. It is important to verify operating conditions to ensure compatibility.
How do I choose between an angular contact bearing and a deep groove ball bearing?
The angular contact one supports axial loads in one direction and offers greater rigidity, while the deep groove ball bearing is for mainly radial loads. The choice depends on the combination of loads and the required precision.
Can I replace a bearing from another brand with an NSK AW series one?
Yes, if dimensions and contact angle match. We help you find the right equivalence. Send the code of the original part by WhatsApp and we will quote the corresponding NSK option.
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