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Appendices
Ap p e n d i x E
Linear Slide Option
Features
• Screw driven slide offering exceptional linear speed, accurate positioning and long life at a compelling
value
• High bidirectional repeatability of up to 50 micro-inches (1.25 microns)
• Positional lead accuracy of 0.0006"/in. – accuracies to 0.0001"/in. available
• Linear speeds not limited by critical screw speed
• Standard leads:
- 0.10" travel per revolution - 0.50" travel per revolution
- 0.20" travel per revolution - 1.00" travel per revolution
• Achieve speeds that exceed 60.0"/second while offering excellent repeatability, accuracy and axial
stiffness
• Optional sensor flag kit available for home, limits and general purpose inputs
• Assembly includes a precision aluminum guide and carriage which is driven by a precision rolled
stainless steel lead screw
• Sliding contact areas coated with TFE (Teflon) permanent lubrication to offer a low 0.09 coefficient of
friction
• Exceptional torsional stiffness and stability
• Standard lengths from 12.0" to 42.0", longer sizes available upon request
• Comes standard with wear-compensating, anti-backlash driven carriage
• Additional passive carriages or slides available to support cantilevered loads
• Easily mountable with provided mounting flange and holes
• Extrusions provided for sensor mounts
MDrive34Plus Linear Slide
†
Speed/Force correlating equations:
Axial Force = F
friction
+ F
acceleration
+ F
gravity
F
friction
= (Weight)(0.09)
F
acceleration
= (Weight)(Acceleration) / Accel. of gravity
F
gravity
= 0 for horizontal application and 1 Weight for vertical application
1
Torque =
Force in lbs; Torque in oz-in, Lead in inches/rev
(0.393)(Screw Efficiency)
(Axial Force)(Screw Lead)
2
Lead in inches/rev; Velocity in inches/second
Full Steps (200 Full Steps/Rev)(Velocity)
Second Lead
=
3
Figure E.1: Speed Force Limitations
Speed-Force Limitations
†
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15 20
25 30 35 40 45 50
44
89
133
178
222
267
356
400
445
311
Axial Force in N
(127)
(254)
(381) (508)
(635) (762) (889) (1016) (1143) (1270)
Axial Force in lbs
1.00" Screw Lead
0.50" Screw Lead
0.20" Screw Lead
0.10" Screw Lead
V Inches / sec (mm / sec)
Speed-Torque Curves
Figure E2: MDrive34Plus Speed Torque Curves
300
400
500
600
200
100
Torque – Oz - In
Torque in N - cm
212
283
354
424
141
71
Speed – Full Steps/Second (RPM)
0 2000
(600)
4000
(1200)
6000
(1800)
10000
(3000)
8000
(2400)
0
700 495
C
B
A
C
B
A
240 VAC
120 VAC
Single Stack
Double Stack
Triple Stack