Seals Type BS

Type BS shaft seals, manufactured in accordance with DIN 3760-BS, are radial sealing elements for rotating shafts. They feature an exposed metal outer casing, a primary sealing lip made of elastomeric rubber reinforced with a helical tension spring to maintain constant contact with the shaft, and a secondary dust lip without a spring that acts as an additional barrier against the ingress of dust, dirt, or external splashes. This dual-lip design offers enhanced internal and external protection, making it particularly suitable for environments with moderate contamination or the presence of airborne particles. The metal casing ensures a secure and precise fit in machined housings.

Within the BS seal range, various lip design variants are available, including the standard type (TB), semi-rubber-coated outer casing (TBC), same with a grooved finish (TBG), partially rubber-coated inner casing (TM), fully rubber-coated version (TZ), and even options with special anti-corrosion treatment (TB-H), among others. Additionally, some models feature helix-shaped grooves on the sealing lip, designed to support specific shaft rotation directions: ‘L’ for left-hand rotation, ‘R’ for right-hand rotation, and ‘W’ for bidirectional applications.

You can consult the detailed technical data sheets for each variant or send us your enquiry via the CONTACT. Our technical team will advise you on the best solution for your application.