Model BNFN SERIES
MORE +
CLOSE +
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
Dynamic
rating

Ca
Static
rating

C0a
mm mm mm mm mm mm kN kN
BNFN 6310-2.5 Ball Screw
63
10
64.75
108
154
137
35.4
111.7
BNFN 5510-5 Ball Screw
55
10
56.75
102
144
201
60.7
194
BNFN 5510-2.5 Ball Screw
55
10
56.75
102
144
141
33.4
97
BNFN 5510-7.5 Ball Screw
55
10
56.75
102
144
261
85.9
291.1
BNFN 5512-2.5 Ball Screw
55
12
57
105
147
165
39.3
108.8
BNFN 5512-3 Ball Screw
55
12
57
105
147
191
46
131.3
BNFN 5512-3.5 Ball Screw
55
12
57
105
147
189
52.4
152.9
BNFN 5512-5 Ball Screw
55
12
57
105
147
237
71.3
218.5
BNFN 5512-7.5 Ball Screw
55
12
57
105
147
309
100.9
327.3
BNFN 5516-2.5 Ball Screw
55
16
57.7
110
158
196
76.1
201.9
BNFN 5516-5 Ball Screw
55
16
57.7
110
158
292
138.2
402.8
BNFN 5520-2.5 Ball Screw
55
20
57.7
112
158
227
76
201.9
BNFN 5520-5 Ball Screw
55
20
57.7
112
158
347
138.2
403.8