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For safety and to comply with local and national safety codes, the purchaser or user must provide protective
guards over all shaft extensions and devices mounted thereon.
WARNING
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BRAVO
®
Single Reduction Reducers
BRAVO
®
Worm - Worm
Double Reduction
BRAVO
®
Helical - Worm
Double Reduction
BRAVO
®
Accessory Kits
High Efficiency Helical - Inline
Gear Reducers
High Efficiency Helical - Worm
Gear Reducers
A
Size
RBN867
RBN857
7.48
8.14
207
190
B
AD
7.87
9.13
232
200
7.93
216
8.50
201
D
BA
5.32
5.91
150
135
0.53
14
14
0.53
G
F
E
0.82
21
0.75
2.18
61
2.39
55
19
J
H
7.68
6.50
195
165
OA
3.94
3.94
100
100
8.48
215
9.08
231
240
8.40
213
9.44
Q
115
4.53
130
5.12
8.47
6.69
11.42
9.84
RBN897
RBN8107
RBN887
RBN877
341
387
15.25
13.42
288
11.34
220
8.66
140
5.51
115
4.53
160
185
7.28
6.30
12.59
17.32
14.37
16.08
14.00
356
408
11.96
9.97
304
253
365
440
320
245
9.65
9.84
250
8.86
225
7.09
180
140
5.51
250
290
215
170
16.78
15.84
13.04
10.47
12.21
14.57
310
370
10.24
260
205
8.07
35
1.38
38
1.50
25
28
1.11
0.98
55
2.16
74
2.93
90
4.00
102
3.55
23
26
1.02
0.91
19
0.75
18
0.69
402
426
331
266
19.00
16.41
417
483
10.79
12.99
330
274
1/2-13 x 1.13
1/2-13 x 1.13
M
1.51
1.51
UY
2.76
N/A
V
KEY
U
VO
0.44
0.44
Size
RBN857
RBN867
1.375
1.375
5/16 x 5/16 x 1-3/4
5/16 x 5/16 x 1-3/4
1.625
2.875
2.375
2.125
RBN8107
RBN877
RBN887
RBN897
3.19
5.51
2.34
2.64
1.78
3.94
4.72
3.15
0.67
0.45
0.64
0.70
3/4 x 3/4 x 4-1/8
1/2 x 1/2 x 2-5/8
5/8 x 5/8 x 3-3/4
3/8 x 3/8 x 2-1/4
3/4-10 x 1.61
3/4-10 x 1.61
3/4-10 x 1.61
5/8-11 x 1.38
Model
19.10
18.06
3/16 x 3/16 x 2
3/16 x 3/16 x 1-1/16
0.875
0.750
RBN867
RBN857
Size
FU
0.82
0.95
FZ
1.57
2.25
FV
0.25
N/A
FO
KEY
N/A
1/4-20 x 0.75
FM
BC
C
7.62
7.48
36.64
34.05
27.48
21.92
5/16 x 5/16 x 2-3/8
1/4 x 1/4 x 2-1/2
1.125
1.375
RBN887
RBN8107
RBN897
RBN877
1.51
1.23
3.15
2.63
0.35
N/A
1/2-13 x 1.41
3/8-16 x 1.00
11.73
15.54
14.79
9.32
N/A
6
0.24
N/A
K
N/A
N/A
N/A
N/A
11
0.35
9
0.45
X
2.83
2.94
5.62
3.27
4.06
4.95
5/16 x 5/16 x 2-3/8
1.375
1.51
3.15
0.35
1/2-13 x 1.41
3/16 x 3/16 x 1-1/16
0.750
0.82
1.57
0.25
N/A
RBN867
RBN857
RBN887
RBN8107
RBN897
RBN877
E
OA
J
A
OUTPUT
SHAFT
H
DIA HOLES
UY
Dimensions subject to change without notice
Q
C
B
F
U
BA
M
TAP
OUTPUT
KEY
VO
V
AD
FZ
INPUT
SHAFT
D
G
BC
K
X
FM
TAP
FV
FO
FU
INPUT
KEY
* See Page 444 For Additional Shaft Diameters Available.
inch
mm
+ 0.000
- 0.001
+ 0.000
- 0.001
LIFTING EYE ON
R887, R897 &
R8107 ONLY
Gearcase
Output Shaft - Inches
Input Shaft* - Inches
Gearcase/Input
Helical - Inline
Quad Reduction
Dimensions
Style RBN