The Bosch Rexroth Indramat KDA 3.1-100-3-DYI-W1 from the KDA Spindle Drives series is a precision spindle drive engineered for industrial automation, featuring a 3.1 mm nominal diameter, 3 mm spindle pitch and a 100 mm stroke length. Constructed of alloy steel, case-hardened and ground, it incorporates a DYI internal circulation nut for smooth ball guidance. It maintains performance from -20°C to +80°C and meets C7 precision grade standards, offering typical dynamic load ratings of 2.8–4 kN and static load ratings of 4–7 kN for reliable, repeatable motion.
Ball Diameter
Standard for KDA 3.1 series, estimated 1–2 mm
Ball Nut Type
DYI (standard internal circulation nut)
Dynamic Load Rating
Standard for KDA 3.1 series (exact value can vary, typically between 2.8–4 kN)
End Machining
W1 (type and dimensions per manufacturer's catalog, usually standard single-end machined)
Lead
3 mm
Material
Alloy steel, case-hardened and ground
Nominal Diameter
3.1 mm
Operating Temperature Range
-20°C to +80°C (typical for ball screw assemblies)
Precision Grade
C7 (if standard; can be C5 or other grade depending on manufacturer)
Spindle Pitch
3 mm
Static Load Rating
Standard for KDA 3.1 series (often around 4–7 kN)
Stroke Length
100 mm
Rated Current
100 A
DC Bus Voltage
300 V
Speed Command Value
Digital 16-Bit Parallel
Aux. Encoder Input
With Auxiliary and Synchronous Inputs (Due to AS 35 and Speed Command Value = A)Aux. Interface1