SKF 61903-2RS1

SKF Deep Groove Ball Bearing 17x30x7mm 61903-2RS1

Description

This SKF 61903-2RS1 is a high-performance single-row deep groove ball bearing, engineered for reliability and long service life. Its versatile design makes it suitable for high radial and axial loads in both directions. The integrated contact seals on both sides provide excellent protection against dust, dirt, and moisture, ensuring the integrity of the lubricant and extending the bearing’s operational life.

Specifications

• Bore Diameter (d): 17 mm
• Outer Diameter (D): 30 mm
• Width (B): 7 mm
• Seals: Contact seal, NBR, on both sides
• Material: High-quality bearing steel
• Limiting Speed: 17000 r/min

Label Info

• Manufacturer: SKF
• Model: 61903-2RS1
• EAN: 7316577121936

Application

Ideal for use in a wide variety of applications including electric motors, pumps, gearboxes, industrial machinery, and automotive components where reliable, low-friction performance is critical.

Country of Origin

This product is made in Japan.

CO2 Impact

Opting for this component helps avoid the emission of approximately 0.04 kg of CO2 compared to manufacturing a new one. This is equivalent to the energy needed for nearly 5 full smartphone charges.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What does the “2RS1” suffix mean on this SKF bearing?
The “2RS1” suffix indicates that the bearing has a contact seal on both sides. These seals are made from acrylonitrile-butadiene rubber (NBR) and provide excellent protection against contamination and moisture, while retaining the lubricant.

What is the limiting speed for this 61903-2RS1 bearing?
The limiting speed for the SKF 61903-2RS1 bearing is typically around 17,000 revolutions per minute (r/min) for grease lubrication. However, this can vary based on the specific application, load, and operating temperature. Always consult the SKF technical datasheet for precise calculations.

Is this bearing suitable for high-temperature applications?
The NBR seals (RS1) have a standard operating temperature range of -40 to +100 deg C (with short peaks up to 120 deg C). For applications with continuous temperatures above this, a bearing with different seal materials (like FKM, suffix 2RSL) or an open bearing would be more appropriate.

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Last Update: Friday, March 13, 2026