Single nut Model BNF

The simplest type with a single ball screw nut.

Model No. Screw 
shaft 
outer 
diameter

d		 Lead


Ph		 Ball 
center-to-
center 
diameter

dp
 		 Outer 
diameter

D
g6		 Flange 
diameter


D1		 Overall 
length


L1		 Basic load rating Detail specifications CAD Dimensional drawing
Dynamic 
rating

Ca		 Static 
rating

C0a		 2D 
(DXF)		 3D
mm mm mm mm mm mm kN kN
BNF 1605-2.5(Unfinished Shaft Ends) 16 5 16.75 40 60 41 7.4 13.9
BNF 1810-2.5(Unfinished Shaft Ends) 18 10 18.8 42 65 69 7.8 15.9
BNF 2005-5(Unfinished Shaft Ends) 20 5 20.75 44 67 56 15.1 35
BNF 2505-5(Unfinished Shaft Ends) 25 5 25.75 50 73 55 16.7 44
BNF 2510A-2.5(Unfinished Shaft Ends) 25 10 26.3 58 85 70 15.8 33
BNF 2806-5(Unfinished Shaft Ends) 28 6 28.75 55 85 68 17.5 49.4
BNF 3205-5(Unfinished Shaft Ends) 32 5 32.75 58 85 56 18.5 56.4
BNF 3206-5(Unfinished Shaft Ends) 32 6 33 62 89 63 25.2 70.4
BNF 3210A-5(Unfinished Shaft Ends) 32 10 33.75 74 108 100 47.2 112.7
BNF 3610-5(Unfinished Shaft Ends) 36 10 37.75 75 120 111 50.1 126.4
BNF 4010-5(Unfinished Shaft Ends) 40 10 41.75 82 124 103 52.7 141.1
BNF 4012-5(Unfinished Shaft Ends) 40 12 42 84 126 119 61.6 158.8
BNF 5010-5(Unfinished Shaft Ends) 50 10 51.75 93 135 103 58.2 176.4