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Ball Screw with Single Nut Cylindrical Cannula Protruding SMV
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ISUTAMI BEARINGS

Ball Screw with Single Nut Cylindrical Cannula Protruding SMV

Ball Screw with Single Nut Cylindrical Cannula Protruding SMV
ISUTAMI SMV ball screw with single cylindrical cannula protruding nut, is an outer circulation nut ball screw assembly. It converts rotary motion into linear motion with minimal friction. It consists of a ball screw and a non-flange cylindrical nut. The interface between the ball screw and the cylinder nut is made by ball bearings, which are rolled in a matching spherical shape. The threaded shaft provides a matching helical raceway for the ball bearings, and the balls roll between the slots to provide the only contact between the nut and the screw. The transmitted force is distributed over a large number of ball bearings, providing a lower relative load relative to each ball. They have tight tolerances and are therefore suitable for situations where high precision is required.
Ball Screw with Single Nut Cylindrical Cannula Protruding SMV
ISUTAMI SMV ball screw with single cylindrical cannula protruding nut, is an outer circulation nut ball screw assembly. It converts rotary motion into linear motion with minimal friction. It consists of a ball screw and a non-flange cylindrical nut. The interface between the ball screw and the cylinder nut is made by ball bearings, which are rolled in a matching spherical shape. The threaded shaft provides a matching helical raceway for the ball bearings, and the balls roll between the slots to provide the only contact between the nut and the screw. The transmitted force is distributed over a large number of ball bearings, providing a lower relative load relative to each ball. They have tight tolerances and are therefore suitable for situations where high precision is required.

Ball Screw with Single Nut Cylindrical Cannula Protruding SMV Size Chart

Ball Screw with Single Nut Cylindrical Cannula Protruding SMV

Model NO. OD Lead Bottom Diameter Ball OD Number
of Ball
Round
MountingSizes Dynamic Rated Load(KN) Static Rated Load(KN)
A B M L L1 Cr Cor
SMV16*5.08 16 5.08 12.50  3.175  3.5*1 25 34 15/16-16 UN-2A 45 12.7 7.5  13.0 
SMV20*5.08 20 16.50  29 38 1-1/8-18 UNEF-2A 45 18.0  34.0 
SMV25.4*6.35 25.4 6.35 20.80  3.969  38.1 49 1-9/16-18 UNEF-2A 60 27.0  54.0 
3.5*2 76 40.0  81.0 
3.5*3 102 54.0  90.0 
SMV38.1*6.35 38.1 6.35 33.80  3.5*2 53.3 64 2-18 UNS-3A 76 50.0  85.0 
3.5*3 102 81.0  160.0 

Ball Screw with Single Nut Cylindrical Cannula Protruding SMV Features

Compared with other kinds of ball screw nut, SMV series has some special parts, such as cannula, tablet. The bent cannula is inserted into the inner end hole of the working loop in the nut, and slightly protruded from the inner hole, then fastened with screws as well as a plate outside the nut. The tube itself is the return path of the ball, and the protruding part acts as a ball stop. In order to ensure the smooth flow of the balls in the pipe, the inner cylindrical surface at both ends must be tangent to the inner raceway to avoid impact, and a 0.2 to 0.3 mm interval between the tube and the ball is required. The nut has a simple structure, good fluency, good processability, and is suitable for mass production.

The ball screw assembly is regularly applied in CNC machine tools, precision special machines, high speed machine tools, electronic production equipment, medical equipment and other industries.
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