SKF 61904-2RS1/C3HGJN deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Decoding SKF 61904-2RS1/C3HGJN
- 619Series
- Deep groove ball bearings, 619 series. Series differ in outside diameter and width even when the bore is the same.
- 04Bore
- Bore 20 mm (04 × 5).
- 2RS1/C3HGJNSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
61904 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 61904-2RS1/C3HGJN measures 20 mm across the bore and 37 mm across the outside diameter; its width is 9 mm (20 x 37 x 9 mm).
SKF 61904-2RS1/C3HGJN belongs to deep groove ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 61904-2RS1/C3HGJN and any equivalents.
When radial space is tight, the SKF 61904-2RS1/C3HGJN deep groove ball bearing offers a thin-section, single-row solution. This sealed bearing with C3 internal clearance handles moderate radial and axial loads in both directions, making it a fit for compact electric motors, precision instruments, pumps, and fans. MR Industrial Accessories supplies this brand and can help you confirm the right code for your application.
Reading the designation helps you verify a replacement. The 61904 portion identifies a 619 series bearing (thin-section) with a 20 mm bore. The 2RS1 suffix denotes rubber seals on both sides, which keep lubricant in and contaminants out. C3 means radial internal clearance is greater than normal, useful when fits or thermal expansion might otherwise reduce clearance. HGJN is a high-temperature, long-life lubricant code. Together, 61904-2RS1/C3HGJN captures all these attributes.
You will find this bearing in equipment where space is limited and quiet, smooth running matters. Typical examples include low-power electric motors, fans, small centrifugal pumps, measuring instruments, and office machines. It is also common in packaging lines, medical equipment, and textile machinery. Its ability to take combined loads and its low noise level suit precision applications.
Selection hinges on internal clearance and sealing. Choose C3 when shaft or housing fits compress the rings, or when operating temperatures are elevated. The 2RS1 seal works well in moderately dusty or moist environments, but at high speeds confirm that the lubricant and seal are appropriate. During mounting, align shaft and housing carefully and avoid striking the seals. Factory lubrication covers most cases; severe conditions may call for relubrication.
Interchangeability with other brands is possible for deep groove ball bearings of similar series, but always check tolerances and internal clearance. Suffix meanings can differ: an SKF 2RS1 seal may correspond to 2RS from another maker, yet the lubricant or clearance may not match. Consult a specialist before substituting a different brand.
To order this bearing or verify an equivalence, send the complete code via WhatsApp. The MR team will respond promptly with suitable alternatives for your application.
Dimensions
20 x 37 x 9 mm (d x D x B): boundary dimensions for basic designation 61904, according to ISO 15.
- Bore
- 20mm
- Outside diameter (D)
- 37mm
- Width (B)
- 9mm
Same size, other brands
Other brands' pages with basic designation 61904: 20 x 37 x 9 mm (d x D x B) per ISO 15.
- FAG61904-2RSR6190461904-2Z
- RKB61904
- TIMKEN61904
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF 61904-2RS1/C3HGJN bearing: what are its dimensions?
- SKF 61904-2RS1/C3HGJN measures 20 mm across the bore and 37 mm across the outside diameter; its width is 9 mm (20 x 37 x 9 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 61904.
- What does the C3 suffix mean on this bearing?
- C3 indicates radial internal clearance greater than normal. It is specified when interference fits or thermal expansion could otherwise reduce clearance and cause overloads. It is common in electric motors and high-temperature applications.
- 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.