What lubricant do you recommend for the lead screw?

The ball screw has a load capacity far greater than the NEMA 17 Stepper motor can generate, the ball screw should last a very long time. Mine came with a very light coating of oil. Any light lubricating oil (not WD-40, it is not a lubricant) should be adequate (like 3 in one). It can be wiped on the ball screw and the ball nut / carriage run back and forth to transfer onto the balls in the ball nut. It does not have to be dripping or soaked in oil. It is not necessary and it is messy. A light grease could be used (white lithium grease for example) but I would wipe most of it off so it isn't a mess and attracting dust.

Your photos and date seem to indicate that 31mm and 47mm stepper motor mounting bolt patterns will work. can i mount a nema23 stepper to this product?

You can mount a NEMA 23 stepper motor, the mounting plate is compatible with both NEMA 17 and NEMA 23 stepper motors

What is the correct wiring for this actuator? the description says: red: a+, green: a-, yellow: b+, blue: b- yet i do not have a yellow line?

The correct wiring for this actuator is black: a+, green: a-, red: b+, blue: b-

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200mm Length Travel Linear Stage Actuator with Square Linear Rails Ballscrew SFU1605 with NEMA17 Stepper Motor for DIY CNC Router Parts X Y Z Axis

Product ID: 213483160

🚀Speed up to 100mm/s

⚙️±0.03mm repeat positioning accuracy

🏋️‍♂️30kg horizontal max load capacity

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Description

⚙️ Elevate Your DIY CNC Game with Precision and Power!

SWIFT AND SMOOTH MOTION - Accelerate your workflow with speeds reaching 100mm/s.
BUILT TO ENDURE HEAVY LOADS - Supports up to 30kg horizontally and 15kg vertically without compromise.
ROBUST SFU 1605 BALLSCREW SYSTEM - Experience reliable, backlash-minimized linear movement with premium C7 grade ballscrew.
PLUG AND PLAY NEMA 17 STEPPER MOTOR - Compact 1.2N.m torque motor ensures consistent, quiet, and efficient operation.
PRECISION THAT POWERS YOUR PROJECTS - Achieve ultra-fine ±0.03mm repeatability for flawless CNC results.

This 200mm Travel Linear Stage Actuator combines a high-precision SFU1605 ballscrew with a powerful NEMA17 stepper motor, delivering ±0.03mm repeat positioning accuracy and a robust 30kg horizontal load capacity. Designed for DIY CNC routers, it offers smooth, fast linear motion up to 100mm/s, making it an essential upgrade for professionals seeking reliable, heavy-duty performance in X, Y, and Z axis applications.

Specifications

ASIN	B085TG12D1
Best Sellers Rank	#207,405 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #195 in Linear Motion Actuators
Date First Available	March 12, 2020
Item Weight	4.02 pounds
Item model number	BE069-2
Manufacturer	Befenybay
Package Dimensions	16.34 x 3.9 x 2.95 inches

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