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Deep groove ball bearing SKF 6304-2RSHNR
- Manufacturer Part Number
- 6304-2RSHNR
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
Other brands in this family
- FAG
- NTN
- TIMKEN
Ask us about alternatives. Equivalence is verified for each reference and application.
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Request your quote via WhatsApp or email, with the quantity and time frame you need.
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Description
SKF 6304-2RSHNR is a deep groove ball bearing reference, within Bearings. Request a quote for 6304-2RSHNR via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
SKF 2RSHNR series deep groove ball bearings combine double-sided sealing with a retaining ring on the outer ring. This simplifies axial mounting in housings without a shoulder, since the ring holds the bearing in position. They are suitable for equipment requiring protection against contaminants and simple fixing, such as electric motors, pumps and light transmissions.
The designation of these bearings is interpreted as follows: the basic number (for example, 6004, 6205 or 6304) indicates the size and dimension series. The suffix 2RSH indicates that they have two rubber seals, one on each side, which retain the grease and block the entry of dust and moisture. The NR ending indicates that the outer ring has a groove and comes with a retaining ring, which allows the bearing to be fixed axially in the housing. Thus, 6004-2RSHNR is a sealed bearing with a ring, and the same applies to the other part numbers in the list.
These bearings are used in a wide variety of industrial equipment in Argentina. They appear in low and medium power electric motors, centrifugal pumps, gearboxes, fans, conveyors and agricultural machinery. The double-sided sealing makes them suitable for environments with dust, chips or splashes, provided high speeds are not required. The retaining ring is practical in split housings or housings where there is no shoulder to stop the bearing, because it simplifies the design and mounting.
To select correctly, take into account the radial and axial load it will support, the rotation speed and the environmental conditions. The 2RSH seal is already lubricated at the factory, so it needs no additional maintenance; if the equipment works at high temperatures or high speeds, evaluate other variants. During mounting, ensure careful alignment between shaft and housing, and avoid hitting the seals. The retaining ring is placed in the groove of the outer ring and rests against one face of the housing; check that the groove is clean and free of burrs.
As for equivalences, deep groove ball bearings with seals and retaining ring from different brands are usually interchangeable if the main dimensions and the type of fixing match. For example, a part number with the 2RS and NR suffixes from another brand can replace an SKF 2RSHNR, but always confirm the tolerances and internal clearance. Not all manufacturers use the same nomenclature, so it is essential to verify the complete part number and dimensions before replacing.
If you need to replace a bearing of this type, send us the part number engraved on the ring or the main dimensions (inner diameter, outer diameter and width) via WhatsApp. At MR Accesorios Industriales we help you identify the exact reference and provide a quote. We work with SKF and other brands so you can find the right solution for your equipment.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the 2RSHNR suffix mean on an SKF bearing?
- The 2RSH suffix indicates that the bearing has two rubber seals, one on each side, which protect against contaminants. NR means that the outer ring has a groove with a retaining ring for axial fixing. Together, they identify a sealed bearing with a ring.
- Can they be replaced by bearings from other brands?
- Yes, as long as the main dimensions and the type of sealing and fixing match. A bearing with equivalent suffixes (for example, 2RS and NR) from another brand may be interchangeable, but verify tolerances and internal clearance before installing it.
- Do these bearings need maintenance?
- No, bearings with 2RSH sealing come lubricated for life and do not require relubrication. You only need to check that the seals are not damaged and that mounting is correct to prevent grease leaks or the entry of dirt.

