Part Number
Diagram		 Nominal Diameter Threads Per Inch Flange Thickness
(A)		 Flange Diameter
(B)		 Bolt Circle Inches
(C)		 Thread Size
(D)		 Mounting Hole Diameter
(E)		 Number
of Holes		 Catalog
Page
A102520-3 1/4 20 0.410 1.600 1.125 .563-18 0.266 4 PDF
A103712-3 3/8 12 0.410 1.600 1.125 .563-18 0.266 4 PDF
A105010-3 1/2 10 0.530 2.600 2.090 .938-16 0.266 4 PDF
A106208-3 5/8 8 0.530 2.600 2.090 .938-16 0.266 4 PDF
A106210-3 5/8 10 0.530 2.600 2.090 .938-16 0.266 4 PDF
A206210-3 5/8 10 (2 st) 0.530 2.600 2.090 .938-16 0.266 4 PDF
A107505-3 3/4 5 0.530 2.600 2.090 1.00-18 0.266 4 PDF
A107506-3 3/4 6 0.530 2.600 2.090 1.00-18 0.266 4 PDF
A107510-3 3/4 10 0.530 2.600 2.090 1.00-18 0.266 4 PDF
A108706-3 7/8 6 0.530 2.750 2.260 1.375-16 0.266 4 PDF
A108706-3 7/8 5 0.530 2.750 2.260 1.375-16 0.266 4 PDF
A110004-3 1 4 0.530 2.750 2.260 1.375-16 0.266 4 PDF
A110005-3 1 5 0.530 2.750 2.260 1.375-16 0.266 4 PDF
A110010-3 1 10 0.530 2.750 2.260 1.375-16 0.266 4 PDF
A111205-3 1 1/8 5 0.530 4.200 3.440 1.967-18 0.397 4 PDF
A112504-3 1 1/4 4 0.832 4.200 3.440 1.967-18 0.397 4 PDF
A115004-3 1 1/2 4 0.832 4.200 3.440 1.967-18 0.397 4 PDF
A117504-3 1 3/4 4 0.895 4.95 4.062 2.848-18 0.531 4 PDF

Flanges are manufactured form low carbon steel with a black oxide finish.
All flanges are supplied with set screw for attachment to nut.
For more permanent attachment, pinning is recommended, see flange attachment section in our catalog or web site.
Custom flanges can be produced per customer specifications. (submit drawing or consult factory)
Note: The products shown in this catalog are intended for industrial use only and should not be used to lift, support or otherwise transport people, unless you obtain a written authorization for each individual application from Rockford Ball Screw Co. The specifications and data in this publication are believed to be accurate and reliable. However, it is the responsibility of the product user to determine the suitability of Rockford Ball Screw products for a specific application.