Linear motion  linear modules LML series
Linear modules LML series are designed for precise fine motion of load on the straight. Such the fine linear motion is achieved by conversion of rotation to linear motion using a pulley gear. To realize the motion these modules are equipped with stepper motors.
The LML series linear modules consist of aluminium section, which guarantees essential stiffness and takes a role of a linear guide. The sections have Tshaped slots for fixation. Pulleys are placed at the ends of the section, cogged belt is strained between the pulleys. A carriage is secured on the cogged belt. A pitch of the pulleys is 2 mm. The pulleys have 20 teeths each, which provides linear motion 40 mm per one motor revolution.
The carriage is fixed on the section using 4 rolls made from polycarbonate. These rolls ensure smooth motion and low noise during operation process. It is possible to make adjustng of two rolls on the belt side and eliminate backlash and cross motion of the carriage, which could appear during working process.
Modifications of linear modules LML series
The linear modules LML series are produced in few modifications: different travel length, different motor orientation.
Linear module  Travel length, mm  Stepper motor position 

LML1000U 
1000 
upper 
LML500U 
500 

LML300U 
300 

LML1000L 
1000 
below 
LML500L 
500 

LML300L 
300 
The main parameters of linear modules LML series
 Nominal linear motion speed: 100 mm/s
 Linear displacement of the carriage per one motor revolution: 40 mm
 Linear displacement of the carriage per one motor step (1.8 ): 0.2 mm
 Nominal force Fx_{nom} at the carriage: 25 N
 Steadystate force Fx _{st} at the carriage: 40 N
 The maximum permissible force at the carriage F_{Y}: 320 N
 The maximum permissible force at the carriage F_{Z}: 320 N
 The maximum permissible torque at the carriage M_{X}: 4 N*m
 The maximum permissible torque at the carriage M_{Y}: 5 N*m
 The maximum permissible torque at the carriage M_{Z}: 6.5 N*m
 Nonfailure operating time: 5000 hours
Dimensions of linear modules LML series
Linear module with upper stepper motor position LMLU:
Linear module with below stepper motor position LMLL: