433 / 663
433
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
www.grovegear.com
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
RBQ8107
RBQ897
RBQ887
RBQ877
Size
-
182TC
184TC
56C
250TC
E
OA
J
A
RBQ8107
RBQ897
RBQ877
RBQ887
13.42
15.25
387
341
8.66
220
11.34
288
Gearcase
14.37
17.32
440
365
9.65
12.59
320
245
14.00
408
16.08
356
253
9.97
304
11.96
5.51
9.84
11.42
290
250
6.69
170
UY
Dimensions subject to change without notice
0.69
18
1.02
26
23
0.91
0.75
19
0.98
1.50
38
1.38
1.11
3.55
102
4.00
90
2.93
74
2.16
55
35
28
25
8.07
14.57
12.21
10.24
370
310
260
205
6.30
7.28
185
160
4.53
115
10.47
266
13.04
331
15.84
402
426
-
-
28.34
28.34
483
12.99
16.41
417
19.00
330
10.79
274
22.30
22.98
22.98
16.87
14.97
17.89
140
180
7.09
225
8.86
250
9.84
-
-
280TC
-
16.78
140TC
-
28.89
D
8.47
215
5.51
140
AD
OUTPUT
SHAFT
"H" DIA. HOLES
DB
C
F
B
Q
M
TAP
BA
U
G
V
X
VO
OUTPUT
KEY
86
73
2.87
3.39
49
60
1.91
2.36
RBQ867
PBQ717
14.10
9.60
0.45
9
0.35
11
N/A
N/A
N/A
N/A
K
A
Size
RBQ867
RBQ847
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
DB
1.91
1.91
49
49
N/A
6
0.24
N/A
K
-
-
-
-
-
-
RBQ837
5.72
145
6.30
160
168
6.61
4.33
110
0.39
10
0.59
1.40
35
15
5.12
130
2.95
75
6.68
170
7.29
185
90
3.54 1.50
38
0.29
7
RBQ857
7.48
190
7.87
200
7.93
201
5.32
135
14
0.53
0.75
2.18
55
19
6.50
165
3.94
100
8.48
215
8.40
213
115
4.53 1.91
49
N/A
N/A
Output Shaft - Inches
1/2-13 x 1.13
3/8-24 x 0.88
3/8-24 x 0.91
M
1.51
1.36
1.10
UY
2.76
2.36
N/A
V
U
VO
0.41
0.44
0.40
Size
RBQ847
RBQ867
RBQ837
1.000
1.250
1.375
1/4 x 1/4 x 1-1/2
1/4 X 1/4 x 1-11/16
5/16 x 5/16 x 1-3/4
1.625
2.875
2.375
2.125
RBQ8107
RBQ877
RBQ887
RBQ897
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
1/2-13 x 1.13
1.51
N/A
0.44
RBQ857
1.375
5/16 x 5/16 x 1-3/4
RBQ857
13.06
-
-
-
RBQ847
RBQ837
13.06
10.68*
-
-
-
-
-
-
RBQ827
5.72
145
6.30
160
168
6.61
4.33
110
0.39
10
0.59
1.40
35
15
5.12
130
2.95
75
6.68
170
7.29
185
90
3.54 1.50
38
0.29
7
3/8-24 x 0.91
1.10
N/A
0.40
RBQ827
1.000
1/4 x 1/4 x 1-1/2
RBQ827
10.68*
-
-
-
NEMA Motor Mounting Dimensions - Inches
Output Key
inch
mm
BE1
BE
Dimension “C”
** 56 Only
+ 0.000
- 0.001
LIFTING EYE ON
R887, R897 &
R8107 ONLY
AK
BD
AJ
(4) HOLES
BF
BORE
Frame
AJ
AK
BD
BE
BE1 Bore
Keyway
BF
Dia.
48CZ
3.75 3.00 4.36 0.38 N/A 0.500 1/8 X 1/16 0.28
56C
5.88 4.50 6.50 0.38 N/A 0.625 3/16 X 3/32 0.41
140TC
5.88 4.50 6.50 0.38 N/A 0.875 3/16 X 3/32 0.41
180TC
7.25 8.50 8.50 N/A 0.50 1.125 1/4 X 1/8 0.53
210TC
7.25 8.50 8.50 N/A 0.50 1.375 5/16 X 5/32 0.53
250TC
7.25 8.50 8.50 N/A 0.50 1.625 3/8 X 3/16 0.53
280TC
9.00 10.50 11.25 N/A 0.55 1.875 1/2 X 1/4 0.55
Helical - Inline
Triple Reduction
Dimensions
Style RBQ