NSK 1304 self-aligning ball bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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How to read NSK 1304
- 13Series
- Self-aligning ball bearings, 13 series. For the same bore, each series has a different outside diameter and width.
- 04Bore
- 20 mm bore: 04 × 5.
1304 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NSK 1304 bearing has a 20 mm bore, a 52 mm outside diameter and a 15 mm width (20 x 52 x 15 mm).
NSK 1304 is a reference of self-aligning ball bearing, within Bearings. Request a quote for 1304 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The NSK self-aligning ball bearing is a self-aligning bearing with two rows of balls and a spherical outer raceway that compensates for misalignment between shaft and housing. It is used in applications where shaft deflection or mounting errors make precise alignment difficult. MR Accesorios Industriales sells this line in Buenos Aires, Argentina, in bearings and power transmission.
The designation of these NSK bearings is read according to the basic number: series 108, 126, 127, 129 and 135 correspond to compact designs with a single row of balls, while series 1200, 1201 and 1202 are two-row with a cylindrical bore. The usual suffixes indicate sealing, internal clearance or special tolerance variants. To identify the exact reference, take into account the full number and the suffixes that appear on the part or in the inquiry.
These bearings are used in equipment where the shaft may deflect or become misaligned, such as conveyors, fans, centrifugal pumps, textile, agricultural and packaging machinery. In Argentina, they are common in the food, chemical and process industries, where mounting conditions require tolerance to small alignment errors. Their self-aligning capability reduces wear and extends the service life of the assembly.
To select the right bearing, consider the radial and axial load, the rotation speed and the working environment. If there is dust or moisture, choose sealed variants. Mounting must be done with suitable tools, avoiding direct blows on the balls. Correct lubrication and initial alignment within the bearing's limits ensure stable operation. If in doubt, consult our technical team.
NSK self-aligning ball bearings can be interchanged with equivalent references from other brands, as long as the main dimensions, sealing type and internal clearance match. If you bring us the part number from another brand, we'll tell you the compatible alternative. Interchangeability depends on verifying each manufacturer's technical specifications.
To request a quote for the NSK self-aligning ball bearing you need, send the part number or size on WhatsApp to MR Accesorios Industriales. We reply shortly with the exact reference and alternatives if applicable. MR sells this brand.
Dimensions
Boundary dimensions of the basic designation 1304 per ISO 15: 20 x 52 x 15 mm (d x D x B).
- Bore
- 20 mm
- Outside diameter (D)
- 52mm
- Width (B)
- 15mm
Same size in SKF and other brands
Pages from other brands with the basic designation 1304: 20 x 52 x 15 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 1304 bearing?
- The NSK 1304 bearing has a 20 mm bore, a 52 mm outside diameter and a 15 mm width (20 x 52 x 15 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 1304.
- What does it mean for a bearing to be self-aligning?
- It means it has a spherical outer raceway that allows the shaft to become slightly misaligned relative to the housing without losing functionality. This compensates for shaft deflection or mounting errors, reducing stress and wear in applications with difficult alignment.
- How do I identify the series of an NSK self-aligning ball bearing?
- The series is identified by the basic number engraved on the bearing. Series 108, 126, 127, 129 and 135 are single-row; 1200, 1201 and 1202 are two-row. The suffixes indicate sealing, clearance or tolerance. Send us the full part number on WhatsApp and we'll quote it for you.
- Can I replace a bearing from another brand with an NSK one?
- Yes, if the main dimensions, sealing type and internal clearance match. Interchangeability between brands is possible by verifying the specifications. If you send us the part number of the original part, we'll tell you the equivalent NSK reference and quote it for you.