SKF 6304 2ZNRJEM deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
How to read SKF 6304 2ZNRJEM
- 63Series
- Deep groove ball bearings, 63 series. For the same bore, each series has a different outside diameter and width.
- 04Bore
- 20 mm bore: 04 × 5.
- 2ZNRJEMSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
6304 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 6304 2ZNRJEM bearing has a 20 mm bore, a 52 mm outside diameter and a 15 mm width (20 x 52 x 15 mm).
SKF 6304 2ZNRJEM is a reference of deep groove ball bearing, within Bearings. Request a quote for 6304 2ZNRJEM via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF ZNRJEM series deep groove ball bearing is a bearing with an integrated snap ring and a protective shield. It is used for assemblies where the bearing must be axially secured in the housing without the need for covers or additional machining. It is a practical solution for equipment with shafts requiring simple and reliable fixing.
The designation of these bearings combines the basic series code (for example, 6007, 6203, 6215, 6304, 6307 or 6309) with suffixes indicating special characteristics. In this series, ZNRJEM indicates that the bearing has a protective shield (Z), a snap ring (NR) and a special execution (JEM) that may include a groove for the ring and a steel cage. The base number defines the size and load capacity according to the series (60, 62 or 63).
These bearings are used in a wide variety of industrial applications in Argentina, such as electric motors, pumps, fans, conveyors and agricultural machinery. Their design with a snap ring allows them to be mounted directly on shafts and housings, simplifying assembly and reducing the risk of axial displacement. They are common in equipment where firm but easy-to-install fastening is needed.
To select the appropriate bearing, take into account the shaft diameter, the type of load (radial, axial or combined) and the environmental conditions. The Z shield offers protection against dust and dirt, but it is not watertight; if there is moisture, consider a more robust seal. The snap ring requires the housing to have the corresponding groove. During mounting, ensure correct alignment and adequate lubrication to maximize service life.
Regarding equivalents, SKF bearings of this series can be interchanged with those of other brands that follow the same standardized dimensions, such as FAG, NSK or NTN, provided the base code and suffixes match. However, tolerances and materials may vary between manufacturers, so it is advisable to verify compatibility before replacing. MR Accesorios Industriales offers SKF as a brand, guaranteeing product quality.
If you need a quote for an SKF deep groove ball bearing with snap ring, send us the complete part number via WhatsApp. At MR Accesorios Industriales we advise you so you choose the correct option for your application.
Other SKF versions of the 6304 series
These versions of the 6304 series appear in SKF catalogues and do not have their own page on this site. Ask us about any of them with the part number: we will source it and send you a quote.
- SKF 6304 ETN9
- SKF 6304 N
Dimensions
Boundary dimensions of the basic designation 6304 per ISO 15: 20 x 52 x 15 mm (d x D x B).
- Bore
- 20mm
- Outside diameter (D)
- 52mm
- Width (B)
- 15mm
The same size in other brands
Pages from other brands with the basic designation 6304: 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 SKF 6304 2ZNRJEM bearing?
- The SKF 6304 2ZNRJEM 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 6304.
- What does the ZNRJEM suffix mean on an SKF bearing?
- ZNRJEM indicates that the bearing has a protective shield (Z), a snap ring (NR) and a special execution (JEM). This allows it to be mounted with axial fixing in the housing and protection against contaminants.
- Is this bearing suitable for very humid environments?
- The Z shield protects against dust and dirt, but it is not watertight. For humid environments or environments with liquids, we recommend a bearing with a 2RS type seal or contacting us to evaluate an alternative.
- How do I order the SKF ZNRJEM bearing I need?
- Send us the complete part number via WhatsApp, for example 6203 2ZNRJEM. At MR Accesorios Industriales we will quote you and advise you so you receive the correct product for your application.