LKR Series: Linear Module Main Introduction Caution This series of products belong to electromechanical equipment, in order to maintain the safety of users, before selecting the model and the actual operation of this product, please be sure to read the relevant information and the following precautions and use in accordance with the instructions, if not in accordance with the precautions to use this product and cause abnormal function, damage or other accidents, the company will not be responsible. Life Safety O This product is intended for industrial use and should not be used on security components directly related to human life or personal safety. O When operating this product, personnel should remain outside the range of mechanical action to avoid entrapment or other safety accidents. O When this product is connected to a motor and energized, the person installing the cardiac pacemaker should remain one meter away to avoid interference. O This product should not be installed near fire sources, flammable materials, or combustible gases to prevent fire. Storage and Installation O Avoid dropping or collision when handling. O When storing this product, it is recommended to store it flat and pack it properly to avoid exposure to high temperature, low temperature and humidity. O Do not disassemble or modify the product by yourself to avoid foreign objects entering or damaging the product, causing abnormal function or safety accidents. O The product should be locked during installation to avoid loosening due to vibration. O When installing the coupling and motor, use the appropriate fittings and pay attention to the centerline of the shaft and then lock the screws, do not force the installation. Operation Use O Operation shall be in accordance with the rated conditions of the data, such as maximum speed and load, to avoid functional damage or safety accidents. O Foreign objects such as dust and chips should be avoided to enter the ball circulation system, which may cause damage, shortened life or abnormal function. O The operating environment temperature should be below 80° If the product needs to be applied C. in high temperature place, please consult us. O If the environment is special, such as strong vibration, vacuum chamber, clean room, corrosive chemicals, organic solvents or chemicals, extremely high or low temperature, wet splash, oil drops and oil mist, high salt, heavy load, vertical or cantilever installation, etc., please consult us first to confirm the conditions of application of the products. O If the load is in danger of falling when installed vertically, it is recommended to install appropriate brakes and confirm that the brakes function properly before use.

Maintenance O The grease should be replenished before the first use, please pay attention to the type of greases, different ones should not be mixed. O Under normal use, it is recommended to check the running condition once every 100km, remove the dirt, and replenish the grease, the guide way and ball screw should be greased. Installation instructions for motor flange, motor and coupling O Three types of misalignments may exist while installing the ball screw with motor axis, which are shown as below. 1.Parallel misalignment[A]: 2. Angular misalignment [B]: O Confirmation of axial alignment:...

Selection Steps When choosing a module based on different conditions and restrictions, below selection steps may be helpful: 1. User requirements O Location restrictions (width, height, length) O Installation type (horizontal, vertical, side mount) O Position of gravity, center of loading O Operating conditions (lead, speed, acceleration and deceleration, duty cycle) O Environment (high temperature, vibration, oil, water, corrosion) 3. Configuration 5. Motor load calculation O With or without brake (included, plug-in) O Motor torque calculation O Special combination 6. Operation analysis O Acceleration...

Speed 1. Maximum linear velocity The module's maximum linear velocity (V) is calculated from the ball screw speed (S) multiplied by the lead (L). V(mm/sec)=S(rpm)÷ 60×L(mm) 2. Maximum rotational speed The maximum allowable rotational speed of the ball screw is decided by it's critical rotational speed. If the ball screw speed exceeds it's critical speed it may result in resonance. Hence, the critical speed is related to the ball screw length, the critical speed can help to determine the ball screws effective stroke and total length. The maximum allowable rotational speed of the ball screw is...

Motor Loading Calculation 1. Confirm the moving conditions required by the loading mechanism, including acceleration, deceleration, the weight of the mechanism and it's movement. 2. Momentum loading calculation: Momentum calculation for loads moving along a straight line JL : Momentum of load, calculated to the motors axial output (kg.cm2) V : Velocity of load along a straight line(mm/min) ΔS : Displacement of load per motor rotation(mm) W : Weight of load (kg) N : Rotational speed of motor[r/min] 3. Select suitable specification of motor with the proportional principle per the momentums between...

5. Per the loads, installation methods, friction coefficients, and motor efficiency, calculate the torque at uniform motion. F : Axial force moving along a straight line F=FC + μx (Wxg + F0) TL : Load torque (N.m) FC : External force exerted in the axial direction (N) F0 : External positive pressure exerted by the load onto the module (N) W : Load (including sliding platform) (kg) μ : Friction coefficient η : Mechanical efficiency V : Velocity of load in a straight line (mm/min) N : Rotational speed of motor (r/min) g : Gravity (9.8m/s2) ΔS : Displacement of load per motor rotation (mm) 6. The...

Installation If the ball screw is used in the vertical direction (Z axis), the load should be within the maximum value indicated for vertical loading. Vertical installation using timing belts is forbidden. Service life For horizontal, side or slope (less than 30 degrees) orientation, the service life depends on the life of guide way, but for vertical or slope (more than 30 degrees) orientation, the service life depends on the life of ball screw or fixed bearing (on the which is shorter). The listed dynamic load (Fy, Fz, Mx, My, Mz) is based on a service life of 10,000km of travel. If the load...