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Deep groove ball bearing with two rubber seals · SKF 61901-2RS1/W64
SKF 61901-2RS1/W64 deep groove ball bearing

SKFBrand we market

SKF 61901-2RS1/W64 deep groove ball bearing

Manufacturer Part Number61901-2RS1/W64Dimensions: 12 x 24 x 6 mm (d x D x B)61901 bearing: all versions and brands →Also searched as: 619012RS1/W64 · 61901 2RS1/W64SKF 619 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 61901-2RS1/W64

619Series
Deep groove ball bearings, 619 series. For the same bore, each series has a different outside diameter and width.
01Bore
12 mm bore: code 01 stands for 12 mm by standard.
2RS1/W64Suffix
SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).

61901 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The SKF 61901-2RS1/W64 bearing has a 12 mm bore, a 24 mm outside diameter and a 6 mm width (12 x 24 x 6 mm).

SKF 61901-2RS1/W64 is a reference of deep groove ball bearing, within Bearings. Request a quote for 61901-2RS1/W64 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SKF deep groove ball bearings of the 2RS1/W64 series are sealed components with special grease for applications in humid environments or with water exposure. They incorporate two rubber seals that retain lubrication and block contaminants, making them ideal for equipment operating in washdown or outdoor conditions. MR Accesorios Industriales carries this line as part of its SKF bearing catalog.

The designation of these bearings combines the basic series code with suffixes indicating specific characteristics. For example, in 6006-2RS1/W64, the prefix 6006 corresponds to a deep groove ball bearing of the 60 series, with a thin section. The suffix 2RS1 indicates that it incorporates rubber seals on both sides, while /W64 identifies a special grease for applications with water contact. Other examples such as 6206-2RS1/W64 or 6305-2RS1/W64 follow the same logic: 62 or 63 series, double-sided sealing and W64 lubrication. Knowing these codes facilitates correct selection.

These bearings are used in industries where humidity or splashes are frequent: food and beverage plants, industrial washdown areas, water treatment equipment, agricultural machinery and irrigation systems. In Argentina, they are commonly found in centrifugal pumps, extraction fans, conveyors and process equipment requiring periodic washdowns. Their 2RS1 sealing prevents the entry of liquids and particles, extending service life in demanding environments.

To select the right bearing, take into account the load, speed and environmental conditions. The 2RS1 seal offers good grease retention and protection against contaminants, but it is not designed for high speeds. W64 grease is water-resistant and allows operation in the presence of moisture. During mounting, ensure correct alignment of the shaft and housing, and avoid striking the seals. Relubrication is not necessary, as they come lubricated from the factory for their entire service life.

Regarding equivalences, deep groove ball bearings with sealing and water-resistant grease from other brands can be interchanged if dimensions and specifications match. However, not all manufacturers use the same nomenclature for W64 grease. Therefore, when looking for a replacement, verify that the suffix indicates lubrication suitable for moisture. MR Accesorios Industriales carries SKF as a brand, guaranteeing traceability and quality of the original product.

If you need a quote for an SKF deep groove ball bearing with 2RS1 sealing and W64 grease, send us the complete code via WhatsApp. At MR Accesorios Industriales we advise you so you can choose the right option for your application. Write to us and we will respond promptly.

Dimensions

Boundary dimensions of the basic designation 61901 per ISO 15: 12 x 24 x 6 mm (d x D x B).

Bore
12mm
Outside diameter (D)
24mm
Width (B)
6mm

The same size in other brands

Pages from other brands with the basic designation 61901: 12 x 24 x 6 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 61901-2RS1/W64 bearing?
The SKF 61901-2RS1/W64 bearing has a 12 mm bore, a 24 mm outside diameter and a 6 mm width (12 x 24 x 6 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 61901.
What does the W64 suffix mean on an SKF bearing?
The W64 suffix indicates that the bearing comes factory-lubricated with a special water-resistant grease, suitable for applications where there is contact with moisture or splashes. It is not a size or sealing designation, but a lubricant one.
Can I replace a 2RS1/W64 bearing with a standard 2RS1 one?
It is not recommended if the equipment operates in a humid environment. The 2RS1 seal is similar, but W64 grease is formulated to resist water. A bearing with standard grease could degrade faster and fail prematurely.
Do I need to lubricate these bearings before mounting them?
No, SKF bearings with the W64 suffix come lubricated for life. They should not be relubricated because the 2RS1 seals are non-removable. Just make sure to mount them clean and with correct alignment.
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