News 2006 - Bahr Modultechnik - (Version JPG) - Page n° 2 - PDF Catalogue | Technical Documentation

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Positioner, Guide, Linear unit, Linear positioner, Roller guide

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Positioning system MLZ 60, 80, 80S

Specifications

Belt drive

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Function:

This linear unit consists of an aluminium square profile with integrated, hardened steel guide rods. The carriage which has internal linear ball bearings, that can be adjusted free of play is driven along the guide rods by a timing belt. The advantage of this system is that the belt is guided within the profile, ensuring that the belt is always tight and thus enabling the system to be operated e.g. when lying on its side. The pulleys have maintenance-free ball bearings. Belt tension can be readjusted by a simple screw adjustment device in the carriage. This device can also be used for symmetrical adjustment of two or more linear units running parallel.

Fitting position: Carriage mounting: Unit mounting: Belt type:

As required, max. length 6.000 mm without joints. By T-slots.

By T-slots or tapped holes in the bearing block, mounting sets.

HTD with steel reinforcement, no backlash when changing direction, repeatability: ± 0,1 mm.


Size	MLZ 60		MLZ 80		MLZ 80 S		MLZ 100
Forces/Torques	static	dynamic	static	dynamic	static	dynamic	static	dynamic
F_x (N)	894	800	1900	1800	1900	1800
F (N)	3000	2000	3000	2000	4600	3600
F_z (N)	1700	1100	1700	1 100	3000	1800
M_x (Nm)	67	43	90	55	170	140
M (Nm) ^y	90	70	110	80	270	230
M_z (Nm)		100	150	120	300	220
All forces and to existing values values of table	ques relate to the following: Fy Fz Mx + My + Mz					1
All forces and to existing values values of table	^Fydyn ^Fzdyn ^Mxdyn ^Mydyn ^Mzdyn					1
No-load torque
Nm 0,6 0,9 1,2
Speed
(m/sec) max 5 6 8
Tensile force
permanent (N)	900		1900		1900
0,2 sec (N)	1000		2090		2090
Geometrical moments of inertia of aluminium profile
l_x mm⁴	4,83x10⁵		17,49x10⁵		17,49x10⁵
l mm⁴ ^y	5,03x10⁵		18,02x10⁵		18,02x10⁵
E-Modulus N/mm²	70000		70000		70000

Forces and torques

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For life-time calculation of rollers use our CD-ROM or homepage!

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Formula: MLZ

Driving torque:

F*P*S


			F*L3 L
F	= force	(N) ₍	^f EI192 ^^_J_
P	= pulley action perimeter	(mm)
S.	= safety factor 1,2 ... 2		f = deflection	(mm)
M_leer	= no-load torque	(Nm)	F = load	(N)
n	= rpm pulley	(min^-1)	L = free length	(mm)
M_a	= driving torque	(Nm)	E = elastic modulus 70000	(N/mm²)
P_a	= motor power	(KW)	I = second moment of area	(mm⁴)

2000*n

M *n 95^a50

P_a=

Henceforth our QL-, QS-, QLZ- und QSSZ systems are cleanroom certified according DIN EN ISO 14644-1 class100, ISO class 5

News 2006 - Bahr Modultechnik - #2

Positioner, Guide, Linear unit, Linear positioner, Roller guide