Rotary Shaft Seal 285x310x16 B2 NBR - Oil Seal

Technical Specifications, Applications & Benefits of 285x310x16 B2 NBR Shaft Seal

The Rotary Shaft Seal 285x310x16 B2 NBR is a high-performance oil seal engineered for rotating shafts in industrial and automotive systems. It features internal diameter 285 mm, external diameter 310 mm, and width 16 mm, with a construction designated B2, and elastomer material NBR (nitrile rubber).

Material & Construction

• NBR (nitrile rubber): offers strong resistance against mineral oils, lubricants, greases, and moderate temperature ranges.

• B2 construction: includes a metal-reinforced outer shell and a sealing lip designed to press against the shaft, creating a tight barrier to liquid leaks.

• The seal maintains radial compression against the shaft, often aided by a garter spring, ensuring consistent sealing even under wear.

• The design is suitable for installation in standard open grooves per ISO and DIN norms, making it compatible with common housing designs.

Performance & Applications

This oil seal is ideal for scenarios where leakage prevention and durability are critical. Typical usage includes:

• Gearboxes and reducers

• Pumps, motors, and drive shafts

• Industrial machinery requiring rotational sealing

• Hydraulic and lubrication systems

Users globally often search with terms like “285x310x16 oil seal”, “B2 shaft seal 285 310 16 NBR”, “285 mm shaft oil seal NBR”, “rotary seal B2 NBR 285x310x16”.

By combining precise dimensions, robust NBR elastomer, and proven B2 design, this shaft seal is built to withstand harsh operating environments while ensuring smooth, leak-free performance.

FAQ - Frequently Asked Questions

Q: What does “B2 NBR” indicate in this seal?
A: “B2” is a construction type with a reinforced shell and sealing lip optimized for radial applications. NBR denotes the rubber material used for the lip.

Q: What are the exact dimensions of this seal?
A: Inner diameter 285 mm, outer diameter 310 mm, width 16 mm.

Q: What operating conditions can it handle?
A: Typical NBR ratings support -30 °C to around +100 °C, with exposure to oils, greases, and rotational speeds.

Q: What are common applications?
A: Gearboxes, pumps, bearings, motors, drive shafts, industrial machines — anywhere a rotating shaft must be sealed against leakage.

Q: Does simmering.pl offer alternate variants like dual lips or dust lips?
A: Yes — to prevent internal overlap, this listing is specific to the B2 variant. Other types (double lip, AO, TC, etc.) are offered in separate listings.