SKF 6303-2RSH/C3GJN 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 6303-2RSH/C3GJN
- 63Series
- Deep groove ball bearings, 63 series. For the same bore, each series has a different outside diameter and width.
- 03Bore
- 17 mm bore: code 03 stands for 17 mm by standard.
- 2RSH/C3GJNSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
6303 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 6303-2RSH/C3GJN bearing has a 17 mm bore, a 47 mm outside diameter and a 14 mm width (17 x 47 x 14 mm).
SKF 6303-2RSH/C3GJN is a reference of deep groove ball bearing, within Bearings. Request a quote for 6303-2RSH/C3GJN via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF deep groove ball bearing with double-sided seals and increased internal clearance, factory-lubricated with high-temperature grease, is a precision component. It is used in applications where lubricant must be retained, contaminants excluded and thermal expansion accommodated, such as electric motors, pumps, fans and transmission equipment. MR Accesorios Industriales sells this line.
The designation of these bearings reads as follows: the basic number (for example, 6001, 6200, 6202) indicates the series and size; the suffix 2RSH indicates double nitrile contact seal, one on each side; C3 or C4 define the radial internal clearance, greater than normal; and GJN corresponds to a polyurea grease for temperatures up to 150 °C. Thus, a code such as 6004-2RSH/C3GJN combines sealing, C3 clearance and lubrication for demanding service.
These bearings are chosen in industries such as food, chemical, cement and automotive, and in equipment such as electric motors, centrifugal pumps, fans, compressors, conveyor belts and machine tools. In Argentina, they are common in food and beverage plants, where frequent washing requires seals that withstand water and moisture, and in the metalworking sector, where varying loads and temperatures call for adequate internal clearance.
To select correctly, take into account the speed, load and working temperature. The 2RSH seal is suitable for environments with dust, water or vapors, but not for immersion. C3 or C4 clearance compensates for thermal expansion and interference fits; if the housing is steel and the temperature moderate, normal clearance may be sufficient. GJN lubrication comes pre-filled; washing or re-greasing without need is not recommended. During mounting, ensure alignment and use suitable tools so as not to damage the seals.
As for equivalents, deep groove ball bearings with seals and increased clearance are available from different brands under similar designations, although the suffixes may vary. Therefore, when looking for a replacement, do not rely only on the basic number: verify that the sealing, clearance and lubrication match your equipment's conditions. If you have doubts, ask us with the full code and we will advise you.
If you need a quote or to confirm the application of an SKF 2RSH/C3GJN bearing, send us the code by WhatsApp at MR Accesorios Industriales. We will reply with the technical information you need.
Other SKF versions of the 6303 series
These versions of the 6303 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 6303 N
- SKF 6303 NR
Dimensions
Boundary dimensions of the basic designation 6303 per ISO 15: 17 x 47 x 14 mm (d x D x B).
- Bore
- 17mm
- Outside diameter (D)
- 47mm
- Width (B)
- 14mm
The same size in other brands
Pages from other brands with the basic designation 6303: 17 x 47 x 14 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 6303-2RSH/C3GJN bearing?
- The SKF 6303-2RSH/C3GJN bearing has a 17 mm bore, a 47 mm outside diameter and a 14 mm width (17 x 47 x 14 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 6303.
- What does the 2RSH suffix mean on an SKF bearing?
- 2RSH indicates that the bearing has nitrile contact seals on both sides. These seals retain the grease and block the entry of dust, water and contaminants, making them ideal for dirty or humid environments.
- When is it advisable to choose a bearing with C3 clearance instead of a normal one?
- C3 clearance is recommended when there are thermal differences between the inner and outer rings, interference fits or high speeds. In those cases, the increased clearance prevents the bearing from operating preloaded and overheating.
- Can the GJN grease in these bearings be re-greased?
- GJN grease comes factory-dosed for the entire service life of the bearing under normal conditions. Re-greasing or washing the bearing is not recommended, because it can become contaminated or lose the properties of the original lubricant.