Rollvis BU support bearing units are engineered for the high-speed, high-acceleration duty of planetary roller screws: fixed-end BUC units use two deep-groove ball bearings for bidirectional axial loads, while floating-end BUM units combine a cylindrical roller with a deep-groove ball bearing to compensate thermal growth. Bore sizes 8-32 mm, load ratings up to 100 kN, grease nipples standard with optional oil ports, four-screw mounting, keyway and adjustable radial/axial play options - the matching support hardware for servo cylinders and humanoid linear actuators.
COMPONENT
Tolomatic (USA) RSA series are servo-driven electric rod-style actuators in six frame sizes RSA12-RSA64 with strokes to 1,524 mm (60 in), forces to 13,039 lbf (58 kN) and speeds to 3,120 mm/s; ball- and roller-screw lead options, integrated servo motor/drive sizing, IP65 rating and broad mounting accessories - a precision, energy-efficient replacement for hydraulic and pneumatic cylinders in automotive, tire, packaging and material-handling lines.
