Rotary Shaft Seal 17x24x3 ZBA NBR - Oil Seal

Compact rotary sealing without spring

Reliable performance in clean operating conditions

Main description

The Rotary Shaft Seal 17x24x3 ZBA NBR is a compact single lip oil seal designed for basic and reliable rotary shaft sealing in light-duty and precision industrial applications. This sealing solution is specifically intended for operating conditions where a garter spring is not required and where simplicity, low friction, and minimal installation space are critical.

The ZBA design (also known as BAOF or VC) features a single elastomer sealing lip without a spring and an elastomer outer jacket. Compared to a double lip oil seal, this configuration offers reduced friction and a simpler geometry, making it suitable for clean environments, low pressure systems, and moderate shaft speeds. It is commonly used where contamination levels are low and stable operating conditions can be maintained.

Manufactured from NBR (nitrile butadiene rubber), the seal provides good resistance to oils and grease, fuels, and standard technical fluids. NBR is widely applied in technical seals due to its elasticity, abrasion resistance, and reliable performance in everyday operating temperatures. These properties contribute to high durability and consistent sealing behavior during continuous operation.

With dimensions of 17x24x3 mm, this shaft sealing ring is ideal for small mechanisms, auxiliary drives, precision equipment, and compact assemblies. It functions as a rotary seal, shaft seal, engine seal, and oil seal in applications where space constraints and low friction are essential. The seal is commonly used within hydraulic and automotive seals segments for auxiliary systems and light mechanical units requiring dependable technical sealing without additional dust protection.

Applications

• Small electric motors

• Precision mechanical devices

• Auxiliary and light-duty drives

• Compact industrial equipment

• Clean environments requiring low-friction rotary sealing

Advantages

• Single lip oil seal without spring for simple applications

• Compact design for limited installation space

• Good resistance to oils and grease

• Reduced friction compared to spring-loaded seals

• Elastomer outer jacket for stable static sealing

FAQ - frequently asked questions

What is the difference between single lip and double lip oil seals?
A single lip oil seal has one sealing lip and no dust lip, making it suitable for clean environments and simpler applications.

Is a spring necessary for effective sealing?
Not always. In low pressure and moderate speed applications, seals without springs perform reliably.

Is NBR suitable for oil sealing?
Yes, NBR offers good resistance to oils, greases, fuels, and common technical fluids.

How do I select the correct rotary shaft seal size?
Match the inner diameter to the shaft (17 mm), the outer diameter to the housing (24 mm), and the width to the available installation space (3 mm).

Where are ZBA oil seals typically used?
In small motors, precision devices, auxiliary drives, and light industrial equipment operating in clean conditions.