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Deep groove ball bearing with two rubber seals · SKF 6305-2RS2/C3HHT
SKF 6305-2RS2/C3HHT deep groove ball bearing

SKFBrand we market

SKF 6305-2RS2/C3HHT deep groove ball bearing

Manufacturer Part Number6305-2RS2/C3HHTDimensions: 25 x 62 x 17 mm (d x D x B)6305 bearing: all versions and brands →Also searched as: 63052RS2/C3HHT · 6305 2RS2/C3HHTSKF 63 series: dimension table →
Brand
SKF
Category
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 6305-2RS2/C3HHT

63Series
Deep groove ball bearings, 63 series. For the same bore, each series has a different outside diameter and width.
05Bore
25 mm bore: 05 × 5.
2RS2/C3HHTSuffix
SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).

6305 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The SKF 6305-2RS2/C3HHT bearing has a 25 mm bore, a 62 mm outside diameter and a 17 mm width (25 x 62 x 17 mm).

SKF 6305-2RS2/C3HHT is a reference of deep groove ball bearing, within Bearings. Request a quote for 6305-2RS2/C3HHT via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SKF deep groove ball bearing of the RS/C HHT series is a precision component designed to withstand moderate radial and axial loads in industrial applications. Its sealed construction and controlled internal clearance make it suitable for environments with contaminants and elevated temperatures. MR Accesorios Industriales supplies this line.

The designation of this series combines several suffixes that indicate specific characteristics. For example, in 6305-2RS2/C3HHT, the numeric prefix identifies the size and dimension series. The suffix 2RS2 indicates double nitrile contact seal, which protects against dust and moisture. The slash separates the base code from the additional suffixes. C3 indicates a greater internal radial clearance than standard, suitable for applications with interference fits or thermal gradients. HHT refers to a special heat treatment for high temperatures. Understanding these codes allows you to select the correct bearing for each requirement.

In Argentine industry, these bearings are used in electric motors, centrifugal pumps, industrial fans, conveyors and process equipment. Their ability to withstand moderate speeds and combined loads makes them common in food, textile, chemical and water treatment plants. They also appear in machine tools and packaging equipment. The sealed version is preferred in environments with dust, chips or moisture, where greater protection and less maintenance are required.

To select correctly, consider the type of seal: the double contact 2RS2 offers maximum protection but can increase friction; in high-speed applications, evaluate alternatives. The C3 clearance is recommended when the fit on the shaft or housing reduces internal clearance, or when there are thermal differences between rings. Factory lubrication is suitable for most cases; if relubricating, use grease compatible with the original. During assembly, ensure precise alignment and avoid blows that damage the seals. Keeping the environment clean is key to extending service life.

Regarding equivalences, sealed deep groove ball bearings from different brands are usually interchangeable if dimensions and suffixes match. However, always verify tolerances and internal clearance, as they can vary between manufacturers. Seal and clearance codes are not universally standardized; therefore, comparing only the base number can lead to errors. At MR Accesorios Industriales we can advise you to find the right replacement according to your equipment specifications.

If you need this bearing or want to confirm the exact designation for your application, send us the code on WhatsApp. At MR Accesorios Industriales we reply with the technical information and the corresponding quote. We back every inquiry with knowledge and reliability.

Other SKF versions of the 6305 series

These versions of the 6305 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 6305 ETN9
  • SKF 6305 N

Dimensions

Boundary dimensions of the basic designation 6305 per ISO 15: 25 x 62 x 17 mm (d x D x B).

Bore
25mm
Outside diameter (D)
62mm
Width (B)
17mm

The same size in other brands

Pages from other brands with the basic designation 6305: 25 x 62 x 17 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 6305-2RS2/C3HHT bearing?
The SKF 6305-2RS2/C3HHT bearing has a 25 mm bore, a 62 mm outside diameter and a 17 mm width (25 x 62 x 17 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 6305.
What does the 2RS2 suffix mean on an SKF bearing?
The 2RS2 suffix indicates that the bearing has double nitrile contact seal on both sides. This provides an effective barrier against dust, moisture and other contaminants, ideal for demanding environments. It slightly increases friction, so in very high-speed applications other options are evaluated.
When is it advisable to choose a bearing with C3 clearance?
C3 clearance is recommended when the interference fit on the shaft or housing reduces internal clearance, or when there are thermal gradients between rings during operation. Also in applications where expansion needs to be compensated. Always verify the assembly conditions and ask if you have doubts.
How do I know if a bearing from another brand is equivalent?
To evaluate an equivalence, compare the main dimensions (bore, outer diameter and width), the type of seal and the internal clearance. Suffix codes can vary between manufacturers, so the base number alone is not enough. At MR we help you identify the correct replacement.
Request a quote for 6305-2RS2/C3HHT via WhatsApp
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