NTN 7306 angular contact ball bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Angular contact ball bearings
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Since 1945 · Martínez, Buenos Aires, Argentina
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Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
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How to read NTN 7306
- 73Series
- Angular contact ball bearings, 73 series. For the same bore, each series has a different outside diameter and width.
- 06Bore
- 30 mm bore: 06 × 5.
7306 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NTN 7306 bearing has a 30 mm bore, a 72 mm outside diameter and a 19 mm width (30 x 72 x 19 mm).
NTN 7306 is a reference of angular contact ball bearing, within Bearings. Request a quote for 7306 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The angular contact ball bearing is a component designed to withstand combined radial and axial loads. Its design with offset raceways allows angular contact between the balls and the raceways, giving it a higher axial load capacity than a deep groove ball bearing. It is used in applications requiring high precision and rigidity, such as machine tool spindles, pumps, compressors and gearboxes. At MR Accesorios Industriales we sell the NTN line for the Argentine market.
The designation of these bearings follows a numerical scheme that begins with the bearing type. For example, the 7000 series corresponds to single-row bearings with a 15° or 25° contact angle, while the 7200 series has a larger angle, and the 7300 series even more. The suffixes indicate additional characteristics: C for a 15° contact angle, AC for 25°, B for 40°. Letters such as P for polyamide cage, G for brass cage, or DB, DF, DT for paired mountings may also appear. Learn more about these variants by asking for the full part number.
These bearings are used in industries such as metalworking, food, petrochemical and process industries. In Argentina, they are commonly found in milling machine and CNC lathe spindles, centrifugal pumps, screw compressors, gearboxes and transmission equipment. Their ability to withstand axial loads in one direction makes them ideal for mountings requiring preload and rigidity. MR Accesorios Industriales supplies workshops, factories and industrial maintenance operations throughout the country.
To correctly select an angular contact bearing, take into account the magnitude and direction of the loads, the rotation speed and the environmental conditions. Sealing can be open, with shields (ZZ) or with seals (LLB, LLU), depending on contamination and the need to retain lubricant. Internal clearance and preload are critical: a mounting with inadequate preload can cause overheating. Alignment between supports must be precise, since these bearings are sensitive to misalignment. Lubrication can be grease or oil, depending on speed and temperature.
As for equivalents, NTN angular contact bearings are interchangeable with those of other brands such as SKF, FAG, NSK or Timken, provided the main dimensions and contact angle match. Suffixes may vary between manufacturers, so it is essential to verify the full part number and technical specifications. If you replace a bearing, make sure the new one has the same load capacity and configuration. For an exact equivalent, consult our technical team.
If you need a quote for an NTN angular contact bearing, write to us on WhatsApp with the part number or dimensions you require. At MR Accesorios Industriales we advise you so you can find the right solution for your application. We can also indicate the compatible alternative if you provide us with another brand's part number. We are here to help you keep your equipment running with the quality and reliability your operation needs.
Dimensions
Boundary dimensions of the basic designation 7306 per ISO 15: 30 x 72 x 19 mm (d x D x B).
- Bore
- 30mm
- Outside diameter (D)
- 72mm
- Width (B)
- 19mm
Same size in SKF and other brands
Pages from other brands with the basic designation 7306: 30 x 72 x 19 mm (d x D x B) per ISO 15.
- Looking for the SKF 7306? We also quote:7306 BEP7306 BECBM7306 BECBP7 more →
- FAG7306-B-XL-JP7306-B-XL-TVP7306-B-XL-2RS-TVP
- NSK7306 A7306 B7306 BEAT85
- RKB7306
- TIMKEN7306 B
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 NTN 7306 bearing?
- The NTN 7306 bearing has a 30 mm bore, a 72 mm outside diameter and a 19 mm width (30 x 72 x 19 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 7306.
- What does the C suffix mean on an NTN angular contact bearing?
- The C suffix indicates a 15-degree contact angle. This affects the bearing's axial load capacity and rigidity. It is important to verify the full suffix to ensure compatibility with your application.
- How do I choose between an open and a sealed bearing?
- It depends on the environment and lubrication. Open bearings allow higher speed and heat dissipation, but require external lubrication. Sealed ones (ZZ or LLU) retain grease and protect against contaminants, ideal for dirty or humid environments.
- Can I replace a bearing from another brand with an NTN one?
- Yes, provided dimensions and contact angle match. Suffixes may vary, so verify the specifications. If you send us the original part number, we will quote you the NTN equivalent or the compatible alternative.