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Ball Screw Brake - Nexen Group, Inc. - #2

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Dimensions
1/8-27
E
B
■K (Maximum shaft insertion)
A, Bore Diameter
Figure 1
Model Size
Product Numbers
A
(Bore Range)
B
C
D
E
F
G
H
I
K
Brake
Coupling
BSB 2
964640
8 mm 964641
4-12,7 [0.16-0.50]
63-91 [2.48-3.58]
50 [1.97]
50 [1.97]
3
[0.12]
74,2 [2.92]
74,2 [2.92]
6,3 [0.24]
56 [2.20]
12 [0.5]
BSB 3
964740
14 mm 964741
5-16 [0.020-0.63]
95-108 [3.74-4.25]
50 [1.97]
50 [1.97]
3
[0.12]
77,7 [3.06]
92 [3.62]
7
[0.28]
65 [2.56]
18.5 [0.73]
BSB 4
964840
20 mm 964841
12-32 [0.47-1.26]
115-150 [4.53-5.91]
95 [3.74]
95 [3.74]
3
[0.12]
100 [3.94]
125 [4.92]
10 [0.39]
82 [3.23]
24.2 [0.95]
BSB 5
964940
20 mm 964841
12-32 [0.47-1.26]
165-186 [6.49-7.32]
130 [5.12]
130 [5.12]
3
[0.12]
127 [5.00]
150 [5.91]
12 [0.47]
95 [3.74]
25.5 [1.00]
BSB 7
965040
30 mm 965041
19-35 [0.75-1.38]
215 [8.47]
130 [5.12]
130 [5.12]
3,5 [0.14]
102 [4.02]
192 [7.56]
15* [0.59]
113 [4.45]
29.1 [1.14]
* Clearance Hole Diameter
Specifications
Model Size
Minimum Holding Torque
Release Pressure
Maximum Speed (RPM)
Inertia / Coupling kg.m2 [lbs-ft2]
Torsional Rigidity Nm/radian [lb-ft/radian]
Axial Misalignment
Weight
Brake
Coupling
BSB 2
2 Nm [20 in-lbs]
5.5 bar [80 psi]
10,000
0,00002 [0.0005]
6180 [4550]
350 [258]
+/- 2 mm [+/- 0.08 in]
1,3 kg [2.9 lbs]
BSB 3
8 Nm [70 in-lbs]
5.5 bar [80 psi]
10,000
0,00006 [0.0014]
9613 [7090]
600 [442]
+/- 2 mm [+/- 0.08 in]
1,6 kg [3.5 lbs]
BSB 4
22 Nm [200 in-lbs]
5.5 bar [80 psi]
10,000
0,00031 [0.0145]
23796 [17550]
9750 [7191]
+/- 2 mm [+/- 0.08 in]
3,4 kg [7.6 lbs]
BSB 5
45 Nm [400 in-lbs]
5.5bar [80 psi]
10,000
0,00114 [0.0271]
36184 [26688]
9750 [7191]
+/- 2 mm [+/- 0.08 in]
6,6 kg [14.6 lbs]
BSB
7
125 Nm [1100 in-lbs]
5.5 bar [80 psi]
5,000
0,00394 [0.0935]
54772 [40390]
10600 [7818]
+/- 2 mm [+/- 0.08 in]
14,7 kg [32.4 lbs]
Linear to Rotary Torque Formula
L (P)
L = Load
Drive Torque =
2000 (pi) n
P = Pitch
n = mechanical effiency (0.9)
nexen
Nexen Group, Inc.
560 Oak Grove Parkway
Vadnais Heights, MN 55127
In accordance with Nexen's established policy of constant product improvement, the specifications contained in this document are subject to change without notice. Technical data listed in this document are based on the latest information available at the time of printing and are also subject to change without notice. For current information, please consult www.nexengroup.com
800.843.7445 Fax: 651.286.1099 www.nexengroup.com
Nexen has sales offices throughout the United States, Europe, Japan, and Australia.
ISO 9001 Certified
©2006 Nexen Group, Inc.
21694-D-1106
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