BRAKING ELEMENT UBPS 4505 BS1LA &

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The Bosch Rexroth BRAKING ELEMENT UBPS 4505 BS1LA (R181044051) is a high-performance pneumatic braking unit designed for roller rail systems. This robust and maintenance-free component ensures dynamic and static stabilization in the axial direction, offering clamping and braking capabilities even without pressurization, thanks to its spring energy accumulator. With a compact design that is compatible with DIN standards, the UBPS 4505 BS1LA can achieve up to 2 million clamping cycles and up to 250,000 emergency braking operations. This model features an integrated all-around sealing and boasts a high continuous output with exceptional positioning accuracy. The mechanical gate valve gear mechanism contributes to its reliability, while the solid, rigid steel housing with a chemical nickel-plated finish enhances durability. Remarkably efficient in terms of air consumption, this braking element is designed for use with all SNS roller guide rails. Capable of delivering very high axial holding forces of up to 4,500 N at 5 bar release pressure, it can further increase the holding force to up to 28,000 N through additional pressurization on the airplus port. Its functional principle involves clamping and braking with spring force; in case of pressure drop, the effect is generated via a dual-acting gate valve gear mechanism equipped with spring energy accumulators. An integrated quick-exhaust valve ensures short reaction times. The UBPS 4505 BS1LA operates effectively within a permissible ambient temperature range of -30°C to +80°C and has been engineered for compatibility with various profiled rail systems including sizes B, E, H, d, N as well as size S thread diameter profiled rail systems M12. It has a nominal size of 45 and weighs approximately 3.2 kg. The unit operates at an air pressure range between 4-6 bar for MBPS and between 4-8 bar for UBPS while enabling free movement when decompressed by compressed air.