Description Extremely compact aluminum profile (frame) with two zero-clearance ball rail systems Integrated precision ball screw assembly (BSA) in tolerance grade 7 with backlash-free nut system Product description Rexroth VKK Feed Modules are precise, ready-to-install Linear Motion Systems that combine high performance with space-saving dimensions. They are particularly suitable for handling tasks that require high precision and simultaneously place high demands on force and torque transmission. Because of their low moved system mass, VKK Feed Modules are ideal for vertical movements in z-axes. Structural design Rexroth Ball Screw Assembly with zero-backlash, Cylindrical Single Nut Fixed bearing end block Frame Thrust rod Bracket for mounting flange Front seal Attachments Maintenance-free servo drives with or without brake Motor mount and coupling or timing belt side drive for motor mounting Switch Bellows Technical data Maximum values for each size Size VKK-050 VKK-070 VKK-100 C N 6950 8120 26000 Cbs N 3800 12300 15700 Cfb N 4000 13400 17900 Mt Nm 97 160 670 ML Nm 61 280 1300 Mt max Nm 48 55 100 ML max. Nm 30 110 360 Lmax mm 480 600 680 amax m/s² 27 vmax 1) m/s 1.16 1.23 1.27 smax perm 2) mm 378 452 476 1) For all lengths 2) Max. movement path (without bellows) at maximum length. Maximum values depends on the selected configuration. Legend Symbol Description Unit C Dynamic load capacity, linear guide N Cbs Dynamic load capacity, ball screw drive N Cfb Dynamic load capacity, fixed bearing N Mt Dynamic torsional moment load capacity Nm ML Dynamic longitudinal moment load capacity Nm Mt max Maximum permissible torsional moment Nm ML max. Maximum permissible longitudinal load moment Nm Fy max Maximum dynamic load in y-direction N Fz max Maximum dynamic load in z-direction N Lmax Maximum length mm amax Maximum acceleration travel m/s2 vmax Maximum permissible speed m/s smax perm Maximum permissible travel range mm Mounting Mounting Mounting with clamping fixtures The additional component is done with clamping fixtures at the lateral slots. Size A B (mm) (mm) VKK-050 62,5 75,5 VKK-070 86,0 100,0 VKK-100 116,0 130,0 Fastening surface The connection/mounting of the feed module may only be done on the surface with the centering bores. 1) Fastening surface 2) Center holes 3) Switch slot Attachment to existing modules No intermediate plates required Positive lock via centering rings (EasyHandling-compatible) Easy mounting with clamping fixtures See the catalog "Connection technology for linear motion systems” for detailed information Feed module VKK to Compact Module CKK Switch mounting 1 Switch (magnetic field sensor) 2 T-slot for switches 3 Cables The switch activator is a magnet that is integrated in the thrust rod. Note For short stroke – not the length of the switches! Notes for mounting The magnetic field sensors (MFS) are pushed into the T-slot for switches and fixed with set screws. The cables of the MFS are laid laterally into the T-slot for swit
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