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Linear Units with Ball Screw feed Axis 
LES 1 (Double-Track Feed Unit 1) 
Ball Screw Feed Axis
- precision feed units from L = 300 up to L = 1,500 mm
- clearance-free feed devices with stepping motors
- NC coupling via a 15-pole amphenol plug on the stepping motor
- ball spindle drive 16 x 5 mm with four flange bearings
- repeatability ± 0.01 mm (reproducibility)
- clamping surfaces L 220 x B 175 x H 8 mm, with holes
- face-milled surfaces, accuracy < 0.05 mm
- great stiffness and high load capacity due to eight linear bearings
- lip seal with teflon coat
- limit and/or reference position at 5 mm pitch > 0.0125 mm
- The double-track feed unit 1 from isel is available in closed design with stepping motor and ball screw drive up to a length of 1.5 metre.
The feed units consist of aluminium rectangular profiles (W 175 x H 30 mm) in different lengths with two double-track feed guides. On the top of it, a clearance-free and torsion-resistant precision feed with eight clearance-free linear ball bearings is mounted.
The feed has a face-milled clamping surface (L 220 x W 175 x H 8 mm) with clamping and centre holes. Two eight-millimetre thick aluminium covers serve as fixing elements for the flange bearing and the stepping motor.
The stepping motor drive consists of a stepping motor with coupling, hand wheel and limit switch. The stepping motor drives a clearance-free ball screw drive (16 x 5 mm) with a repeatability of ± 0.01 mm (reproducibility).
Stroke = L - 243 mm.
Options:
- feed from 75 to 1,250 mm (Ø 25mm)
- pitches: 2.5/4/10 and 20 mm
Copyright © 2009 Micromech Ltd. All rights reserved.
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