HIWIN Corporation
HIWIN Corporation
12455 Jim Dhamer Dr
Huntley, IL 60142
Phone: 847.827.2270
Fax: 847.827.2291
Email: info@hiwin.com
Website: www.hiwin.com
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Offset pitch preload, flange end, single nut, tube within the nut diameter.
OFSW Type Nuts_GroundBallScrew Series
OFSW Type Nuts_GroundBallScrew Series Single Circulation 2
Unit of Measure
1 2 3 

Item #

Nominal Diameter

Lead

Ball Diameter

Pitch Circle Diameter (PCD)

Root Diameter (RD)

Circuits

16-5B1-OFSW-G N/A 16 mm N/A 5 mm N/A 3.175 mm N/A 16.6 mm N/A 13.324 mm N/A 2.5x1
16-5A1-OFSW-G N/A 16 mm N/A 5 mm N/A 3.175 mm N/A 16.6 mm N/A 13.324 mm N/A 1.5x1
20-5B1-OFSW-G N/A 20 mm N/A 5 mm N/A 3.175 mm N/A 20.6 mm N/A 17.324 mm N/A 2.5x1
20-5A2-OFSW-G N/A 20 mm N/A 5 mm N/A 3.175 mm N/A 20.6 mm N/A 17.324 mm N/A 1.5x2
20-6B1-OFSW-G N/A 20 mm N/A 6 mm N/A 3.969 mm N/A 20.8 mm N/A 16.744 mm N/A 2.5x1
25-4B1-OFSW-G N/A 25 mm N/A 4 mm N/A 2.381 mm N/A 25.25 mm N/A 22.792 mm N/A 2.5x1
25-4B2-OFSW-G N/A 25 mm N/A 4 mm N/A 2.381 mm N/A 25.25 mm N/A 22.792 mm N/A 2.5x2
25-5B1-OFSW-G N/A 25 mm N/A 5 mm N/A 3.175 mm N/A 25.6 mm N/A 22.324 mm N/A 2.5x1
25-5A2-OFSW-G N/A 25 mm N/A 5 mm N/A 3.175 mm N/A 25.6 mm N/A 22.324 mm N/A 1.5x2
25-5C1-OFSW-G N/A 25 mm N/A 5 mm N/A 3.175 mm N/A 25.6 mm N/A 22.324 mm N/A 3.5x1
25-6A2-OFSW-G N/A 25 mm N/A 6 mm N/A 3.969 mm N/A 25.8 mm N/A 21.744 mm N/A 1.5x2
25-6C1-OFSW-G N/A 25 mm N/A 6 mm N/A 3.969 mm N/A 25.8 mm N/A 21.744 mm N/A 3.5x1
25-10A1-OFSW-G N/A 25 mm N/A 10 mm N/A 4.763 mm N/A 26 mm N/A 21.132 mm N/A 1.5x1
28-5B1-OFSW-G N/A 28 mm N/A 5 mm N/A 3.175 mm N/A 28.6 mm N/A 25.324 mm N/A 2.5x1
28-5B2-OFSW-G N/A 28 mm N/A 5 mm N/A 3.175 mm N/A 28.6 mm N/A 25.324 mm N/A 2.5x2
28-6A2-OFSW-G N/A 28 mm N/A 6 mm N/A 3.175 mm N/A 28.6 mm N/A 25.324 mm N/A 1.5x2
32-5B1-OFSW-G N/A 32 mm N/A 5 mm N/A 3.175 mm N/A 32.6 mm N/A 29.324 mm N/A 2.5x1
32-5A2-OFSW-G N/A 32 mm N/A 5 mm N/A 3.175 mm N/A 32.6 mm N/A 29.324 mm N/A 1.5x2
32-5C1-OFSW-G N/A 32 mm N/A 5 mm N/A 3.175 mm N/A 32.6 mm N/A 29.324 mm N/A 3.5x1
32-6B1-OFSW-G N/A 32 mm N/A 6 mm N/A 3.969 mm N/A 32.8 mm N/A 28.744 mm N/A 2.5x1
32-6A2-OFSW-G N/A 32 mm N/A 6 mm N/A 3.969 mm N/A 32.8 mm N/A 28.744 mm N/A 1.5x2
32-6C1-OFSW-G N/A 32 mm N/A 6 mm N/A 3.969 mm N/A 32.8 mm N/A 28.744 mm N/A 3.5x1
32-8B1-OFSW-G N/A 32 mm N/A 8 mm N/A 4.763 mm N/A 33 mm N/A 28.132 mm N/A 2.5x1
32-8A2-OFSW-G N/A 32 mm N/A 8 mm N/A 4.763 mm N/A 33 mm N/A 28.132 mm N/A 1.5x2
32-8C1-OFSW-G N/A 32 mm N/A 8 mm N/A 4.763 mm N/A 33 mm N/A 28.132 mm N/A 3.5x1
Unit of Measure
1 2 3