Rotary Shaft Seal 42x62x10 SC NBR - single lip oil seal with spring

Industrial and automotive applications

NBR material - oil resistance and durability

SC / BA design - reliable rotary sealing

Rotary Shaft Seal 42x62x10 SC NBR, also known as oil seal single lip with spring BA or Wellendichtring BA, is a high-quality rotary oil seal designed to seal the interface between a rotating shaft and a stationary housing. This single lip oil seal with an integrated garter spring provides consistent radial force on the shaft, ensuring stable sealing performance over long operating periods.

The seal is manufactured from NBR (nitrile butadiene rubber), the most widely used elastomer for radial shaft seals in industrial applications and automotive systems. NBR offers an excellent balance of mechanical strength, abrasion resistance and resistance to oils and grease, making it a proven material for gearboxes, engines, pumps, compressors and hydraulic equipment. The standard NBR compound, with an optimized acrylonitrile content, delivers reliable sealing while maintaining good flexibility and wear resistance.

With precise dimensions 42x62x10 mm, this shaft sealing ring fits common shafts and housings used in machinery and drive systems. The SC / BA design combines a metal outer case for secure press-fit installation with a flexible sealing lip and spring that compensates for wear and shaft runout. As a technical seal, it effectively performs key sealing functions: retaining lubricants, excluding contaminants, separating different media and sealing under moderate pressure.

The operating temperature range of standard NBR seals is -30°C to +100°C, with short-term peaks up to +120°C, making this rotary shaft seal suitable for a wide range of hydraulic and automotive seals where predictable performance and high durability are required.

FAQ - frequently asked questions

What does SC or BA mean in an oil seal?
SC / BA indicates a single lip oil seal with a metal outer case and a garter spring for constant sealing pressure.

What is the difference between single lip and double lip oil seals?
A single lip oil seal retains the lubricant, while a double lip oil seal also protects against external contamination.

Is NBR suitable for oil and grease sealing?
Yes, NBR has very good resistance to mineral oil-based oils, greases and many hydraulic fluids.

Where is a 42x62x10 rotary shaft seal commonly used?
In engines, gearboxes, pumps, electric motors, compressors and general industrial machinery.

How do I select the correct rotary shaft seal size?
Match the inner diameter to the shaft, the outer diameter to the housing, and the width to the installation space.