Precision Metric Ball Screw Assembly, Single Nut with V-Thread, 20 x 20 RA

Nook Industries has always been a leader in developing high quality linear motion components and systems to meet the ever increasing demand for precision linear motion. Precision-rolled ball screws have long been a hallmark of Nook Industries, and the latest innovations from Nook Industries are Precision Metric Ball Screws (PMBS™). A precision metric ball screw assembly is manufactured in the United States to meet the increasing demand for metric ball screws in the global market.

Mounting dimensions per DIN69 051 part 5 Type c.

Consult factory or Nook website to design end machining and bearing mounts for ease of applications. Check engineering section of the catalog to verify application data to assure product performance.


  • The V-Thread mounting provides a compact connection.
  • Two flats offer ease of mounting.
  • Utilizing precision thread-rolling technology
  • Wide range of diameters and leads
  • T3, T5, T7, and T10 lead accuracy per ISO 3408-3
  • Preloaded and clearance nuts
  • State-of-the-art ball return mechanisms
  • Integral wipers

To configure a part number, download 2D/3D models, or request a quote, please select the "Quote or Download" tab and click the "Configure" button. (Step 4 of 4)

Product MBN20x20R-4VW
Product Info
Nominal Rod Diameter [mm] 20
Material Alloy
Thread Direction RH
Lead [mm] 20
Active Turns 4
Nominal Ball Dia. [mm] 3.500
Screw Weight [kg/m] 1.94
Nut Weight [kg] 0.25
End Code for Types 1,2, and 3 15
End Code for Types 4 10
End Code for Types 5 15
End Code for Types 6 15
End Code for Types 7 15
Performance Specifications
Dynamic Load Ca [N] 12110
Static Load [N] 22010
Linear Speed (Based on DN Values) [mm/min] 70000
Screw Dimensions
d0 [mm] 20
d1 [mm] 19.26
d2 [mm] 16.38
Nut Dimensions
D1 (h8) [mm] 43
L [mm] 36
Lx [mm] 40
LY [mm] 17
Lz [mm] 19
Lp [mm] 15.5
Dp [mm] 1.2
T (6g) M40 × 1.5

To continue, please configure your item below.

    No product compatiblities identified for this product.