SKF 61903-2RS1/C3LHT23 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 61903-2RS1/C3LHT23
- 619Series
- Deep groove ball bearings, 619 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.
- 2RS1/C3LHT23Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
61903 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 61903-2RS1/C3LHT23 bearing has a 17 mm bore, a 30 mm outside diameter and a 7 mm width (17 x 30 x 7 mm).
SKF 61903-2RS1/C3LHT23 is a reference of deep groove ball bearing, within Bearings. Request a quote for 61903-2RS1/C3LHT23 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF deep groove ball bearing is an essential component in power transmission. Its single-row design supports radial and axial loads in both directions, with high speed and low maintenance. The variant with 2RS1 seals and C3 clearance is designed for demanding environments, with high-temperature lubrication. MR Accesorios Industriales supplies this brand.
The designation of these bearings follows the SKF system: the basic number indicates the size and the series. For example, 6024 belongs to the 60 series of extra-light section, 6206 and 6209 to the 62 series of light section, 6309 to the 63 series of medium section, and 61903 to the 619 series of extra-light section. The suffixes 2RS1 indicate rubber seals on both sides, C3 an internal radial clearance greater than normal, and LHT23 a specific lubrication for high temperatures. These codes make it possible to quickly identify the characteristics of each item.
These bearings are used in a wide variety of industries in Argentina: from electric motors and centrifugal pumps to industrial fans, conveyor belts and agricultural machinery. Their ability to withstand combined loads and high speeds makes them ideal for power transmission equipment. In food, textile or chemical plants, where temperatures can be high, the combination of seals and LHT23 lubricant offers reliable performance and extends the service life of the bearing.
To select correctly, take into account the radial and axial load, the rotation speed and the environmental conditions. The 2RS1 seal protects against dust and moisture, but if the environment is very dirty, consider additional seals. C3 clearance is recommended when there are significant thermal gradients, since it compensates for expansion. LHT23 lubrication is formulated for high temperatures, but verify that it is compatible with the operating range. During mounting, ensure precise alignment and avoid impacts that could damage the raceways.
As for equivalents, SKF deep groove ball bearings can be interchanged with those of other brands that follow the same basic designation and suffixes. However, not all manufacturers offer exactly the same performance in sealing or lubrication. Therefore, when replacing, it is essential to verify that the complete code matches, including the suffixes. If you have any doubts, ask us and we will advise you to find the best option.
If you need a quote for SKF deep groove ball bearings with 2RS1 seals, C3 clearance and LHT23 lubrication, write to us on WhatsApp. At MR Accesorios Industriales we reply with the technical information you need for your application. Send us the complete code and we will help you select the right bearing for your equipment.
Dimensions
Boundary dimensions of the basic designation 61903 per ISO 15: 17 x 30 x 7 mm (d x D x B).
- Bore
- 17mm
- Outside diameter (D)
- 30mm
- Width (B)
- 7mm
The same size in other brands
Pages from other brands with the basic designation 61903: 17 x 30 x 7 mm (d x D x B) per ISO 15.
- FAG61903-2RSR6190361903-2Z
- RKB61903
- TIMKEN61903
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 61903-2RS1/C3LHT23 bearing?
- The SKF 61903-2RS1/C3LHT23 bearing has a 17 mm bore, a 30 mm outside diameter and a 7 mm width (17 x 30 x 7 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 61903.
- What does the 2RS1 suffix mean on an SKF bearing?
- The 2RS1 suffix indicates that the bearing has rubber seals on both sides. These seals protect against the entry of contaminants and retain the lubricant, extending service life in demanding environments.
- When is it advisable to use a bearing with C3 clearance?
- C3 clearance is recommended when the bearing operates at high temperatures or with interference fits, since it compensates for thermal expansion and prevents the clearance from being reduced excessively, preventing premature failures.
- Is LHT23 lubrication compatible with high temperatures?
- Yes, LHT23 is a specific lubrication for high temperatures, designed to maintain its properties under severe conditions. It is important to verify the operating temperature range to ensure optimum performance.