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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
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
250TC
18.45
14.83
RBQ8107
RBQ897
RBQ887
RBQ877
Size
-
180TC
56C
210TC
E
OA
J
A
UY
Dimensions subject to change without notice
Q
C
B
F
U
BA
G
M
TAP
OUTPUT
KEY
VO
X
V
14.83
14.83
23.19
23.49
20.89
-
20.89
20.89
-
14.15
18.45
364TC/366TC
19.00
20.89
22.15
24.75
280TC
-
324TC/326TC
-
140TC
18.45
-
23.49
23.49
D
AD
OUTPUT
SHAFT
"H" DIA. HOLES
K
A
Size
RBQ867
RBQ857
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
RBQ897
RBQ8107
RBQ887
RBQ877
341
387
15.25
13.42
288
11.34
288
8.66
140
5.51
140
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
304
365
440
320
320
9.65
9.84
250
8.86
225
7.09
180
180
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
1.10
UY
2.76
N/A
N/A
V
Output Key
U
VO
0.44
0.44
0.40
Size
RBQ857
RBQ867
RBQ827
1.000
1.375
1.375
1/4 x 1/4 x 1-1/2
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
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
N/A
6
0.24
N/A
K
N/A
N/A
N/A
N/A
11
0.35
9
0.40
X
2.83
2.94
5.62
3.27
4.06
4.95
RBQ867
RBQ857
12.14
13.16
13.16
12.12
11.10
12.12
-
-
-
-
-
-
RBQ847
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
N/A
N/A
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
0.29
7
RBQ827
3/8-24 x 0.91
3/8-24 x 0.088
1/4 x 1/4 x 1-1/2
1.10
1.36
2.36
0.41
0.40
RBQ847
RBQ837
1.250
1.000
1/4 x 1/4 x 1-11/16
2.43
2.12
2.12
N/A
-
RBQ847
RBQ837
11.21
12.12
11.10
12.12
9.90
-
-
-
-
-
-
RBQ827
PBQ717
9.90
11.21
-
-
8.83
-
-
-
-
-
-
-
3/8-24 x 0.91
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
0.29
7
Gearcase
Output Shaft - Inches
NEMA Motor Mounting Dimensions - Inches
BE1
BE
+ 0.000
- 0.001
inch
mm
Dimension “C”
LIFTING EYE ON
R887, R897 &
R8107 ONLY
Helical - Inline
Double Reduction
Dimensions
Style RBQ
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
320TC
11.00 12.50 14.00 N/A 0.55 2.125 1/2 X 1/4 0.65
360TC
11.00 12.50 14.00 N/A 0.55 2375 5/8 X 5/16 0.65