Radial Shaft Seal CRW1 44.45x60.3x7.95 - Oil Seal with Metal Case and Wave Lip

Advanced Rotary Shaft Sealing Technology

Industrial and Automotive Applications

Technical Design and Performance Benefits

Main Description

The CRW1 radial shaft seal 44.45x60.3x7.95 is a high-quality oil seal designed for reliable rotary shaft sealing in industrial machinery, engines, gearboxes and mechanical assemblies. This simmering-type shaft seal is engineered for sealing oil and grease between rotating shafts and stationary housings, ensuring stable operation and long service life under demanding conditions.

The seal features a metal case that provides excellent rigidity, precise fit and dimensional stability in the housing bore. An integrated sealing compound on the outer diameter helps compensate for minor bore imperfections, improving sealing performance and simplifying installation. The sealing lip is made of nitrile rubber (NBR), offering strong resistance to oils, greases and common industrial lubricants.

A key advantage of this design is the Wave lip profile, which generates a higher pumping rate compared to conventional shaft seals. This reduces friction between the shaft and the lip, lowers contact temperature and significantly improves wear resistance. The integrated garter spring maintains constant radial pressure on the shaft, ensuring consistent sealing even under variable operating conditions.

The CRW1 radial shaft seal operates within a temperature range from -40°C to +100°C, with a maximum rotational speed of 3180 r/min and a permissible circumferential speed of 7.4 m/s. These parameters make it suitable for continuous operation in industrial applications, mechanical drives and selected automotive systems, where reliable oil retention and contamination protection are critical.

This single-lip shaft seal is commonly used as a technical sealing solution in pumps, motors, gear units, machine tools and power transmission systems. Its optimized design supports long-term performance, reduces maintenance requirements and minimizes the risk of lubricant leakage.

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FAQ - Frequently Asked Questions

What is the difference between a Wave lip seal and a standard shaft seal?
A Wave lip seal generates a higher pumping effect, reduces friction and lowers operating temperature, resulting in longer service life and improved sealing performance.

Is this a single-lip or double-lip shaft seal?
This is a single-lip shaft seal designed for oil and grease sealing in rotary applications.

Which lubricants is this oil seal compatible with?
The NBR sealing lip provides excellent resistance to mineral oils, greases and standard industrial lubricants.

How do I select the correct shaft seal size?
The inner diameter must match the shaft diameter. This seal is designed for shafts with a diameter of 44.45 mm.

Where is this radial shaft seal typically used?
It is widely used in industrial machinery, engines, gearboxes, pumps and mechanical drive systems requiring reliable rotary sealing.