SKF 61904-2RS1/C3HGJN deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove 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 SKF 61904-2RS1/C3HGJN
- 619Series
- Deep groove ball bearings, 619 series. For the same bore, each series has a different outside diameter and width.
- 04Bore
- 20 mm bore: 04 × 5.
- 2RS1/C3HGJNSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
61904 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 61904-2RS1/C3HGJN bearing has a 20 mm bore, a 37 mm outside diameter and a 9 mm width (20 x 37 x 9 mm).
SKF 61904-2RS1/C3HGJN is a reference of deep groove ball bearing, within Bearings. Request a quote for 61904-2RS1/C3HGJN via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF 619 series deep groove ball bearing is a thin-section, sealed bearing with C3 internal clearance. It is used in applications where radial space is limited and a compact bearing is required, such as in small electric motors, precision instruments, pumps and fans. Its single row ball design supports moderate radial and axial loads in both directions. MR Accesorios Industriales supplies this brand and advises you to choose the correct code.
The designation of this bearing is read in parts. The number 61904 indicates the 619 series, which is thin-section, and the 20 mm bore. The suffix 2RS1 means it has rubber seals on both sides, which retains the lubricant and blocks the entry of contaminants. The suffix C3 indicates a radial internal clearance greater than normal, useful when there is thermal expansion or interference fits. HGJN is a high-temperature, long-life lubricant code. For example, the code 61904-2RS1/C3HGJN combines all these characteristics.
This type of bearing is found in equipment where space is critical and smooth, quiet operation is needed. It is common in low-power electric motors, fans, small centrifugal pumps, measuring instruments and office machines. In Argentine industry, it is seen in packaging lines, medical equipment, and textile machinery. Its ability to support combined loads and its low noise level make it suitable for precision applications.
To select the correct bearing, take into account the internal clearance: C3 is recommended when the shaft or housing fit generates compression on the rings, or when the working temperature is high. The 2RS1 seal is suitable for environments with moderate dust or moisture, but if there are high speeds, verify that the lubricant and the seal allow it. When mounting, make sure to align the shaft and housing well, and avoid hitting the seals. Factory lubrication is sufficient for most cases, but under severe conditions it may require relubrication.
Regarding equivalences, deep groove ball bearings of similar series from other manufacturers can be interchanged, but always verify the tolerances and the internal clearance. Suffixes may vary between brands: for example, an SKF 2RS1 seal may be equivalent to 2RS from another brand, but do not assume that the lubricant or clearance are identical. It is best to consult a specialist before replacing one bearing with another of a different brand.
If you need this bearing or want to confirm the equivalence with the one you are using, send us the complete code by WhatsApp to MR Accesorios Industriales. We will reply with the alternatives we have for your application.
Dimensions
Boundary dimensions of the basic designation 61904 per ISO 15: 20 x 37 x 9 mm (d x D x B).
- Bore
- 20mm
- Outside diameter (D)
- 37mm
- Width (B)
- 9mm
The same size in other brands
Pages from other brands with the basic designation 61904: 20 x 37 x 9 mm (d x D x B) per ISO 15.
- FAG61904-2RSR6190461904-2Z
- RKB61904
- TIMKEN61904
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 61904-2RS1/C3HGJN bearing?
- The SKF 61904-2RS1/C3HGJN bearing has a 20 mm bore, a 37 mm outside diameter and a 9 mm width (20 x 37 x 9 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 61904.
- What does the C3 suffix mean on this bearing?
- C3 indicates a radial internal clearance greater than normal. It is used when the interference fit or thermal expansion can reduce the clearance and cause overloads. It is common in electric motors and applications with high temperatures.
- Does this bearing come with factory lubricant?
- Yes, the HGJN suffix indicates a high-temperature, long-life lubricant already applied. It does not need additional lubrication in most cases. For extreme conditions, consult us about relubrication options.
- Can I replace a bearing from another brand with this SKF one?
- In general, deep groove ball bearings of the same series and suffixes are interchangeable, but tolerances and lubricant may vary. Verify the specifications or consult us with the original code to ensure compatibility.