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Single Reduction
Worm Gear Reducers
Double Reduction
Worm - Worm Gear Reducers
Double Reduction
Helical - Worm Gear Reducers
WASHGUARD
®
Reducers
and GEAR+MOTOR™
Ratio Multipliers
Accessories and
Additional
Capabilities
www.grovegear.com219
GR Series
Dimensions
Styles: DXFEMQ, DXFEM, DXFE
STYLE DXFEMQ, DXFEM, DXFE DIMENSIONS (Inches)
Size
A
AC
AD
AM B
CD
D
F
FC
t
H
GR830
11.00 0.375 .31-18 UNC X 1.00 DP 3.15 11.00 3.00 4.60 9.00 N/A 0.56
GR832
12.50 0.375 .31-18 UNC X 1.00 DP 3.40 12.50 3.25 5.52 10.50 N/A 0.56
GR842
14.00 0.500 .31-16 UNC X 1.00 DP 3.62 14.00 4.25 5.74 12.00 N/A 0.69
GR852
16.00 0.750 .31-16 UNC X 1.00 DP 4.28 16.00 5.25 6.00 14.00 N/A 0.81
GR860
19.50 0.750 .31-16 UNC X 1.00 DP 5.28 19.50 6.00 7.00 17.00 10.24 0.88
GR870
H
22.00 1.000 .31-16 UNC X 1.00 DP 6.06 22.00 7.00 8.50 19.00 10.63 1.13
GR880
H
28.00 1.062 .31-11 UNC X 1.50 DP 6.22 28.00 8.00 8.86 24.00 11.93 1.31
GR8100
H
32.00 1.118 .31-11 UNC X 1.50 DP 7.94 32.00 10.00 12.50 28.00 14.34 1.31
Motor Mounting Dimensions
NEMA DIMENSIONS (Inches)
LM
L1
LQ
LQ1
RQ
Size
56C/
180TC/
250TC 48CZ/
180TC 210TC 250TC 48CZ/
180TC 210TC 250TC
140TC 210TC
56TC/140TC
56C/140TC
GR830
12.49 N/A N/A 11.01
n
N/A N/A N/A 10.62
n
N/A N/A N/A
GR832
12.68 N/A N/A 11.20
n
N/A N/A N/A 10.81
n
N/A N/A N/A
GR842
N/A 19.44 20.00 N/A 14.05 13.75 14.31 N/A 13.22 13.22 13.78
GR852
N/A 20.84 21.40 N/A 15.15 15.15 15.71 N/A 14.52 14.52 15.08
GR860
N/A 22.42 23.04 N/A 15.87 15.87 16.48 N/A 15.23 15.23 15.23
Frame AJ AK BD BE BE1 Bore Keyway
u
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 9.00 N/A 0.50 1.125 1/4 X 1/8 0.53
210TC
7.25 8.50 9.00 N/A 0.50 1.375 5/16 X 5/32 0.53
250TC
7.25 8.50 9.00 N/A 0.50 1.625 3/8 X 3/16 0.53
** Key not provided with gear reducer. Keyway dimension shown.
u
Keyway width by depth
n
48CZ not available
i
Style DXFE and DXFEM only.
Э
“O” dimension is the minimum dimension to output seal
or screw head on sizes GR860-GR8100.
v
Metric IEC B5 input flange options are available only on quill input styles.
t
Sizes 860-8100 have extended cap on input cover. Dimension FC is to back face of
the cap.
For safety, purchaser or user should provide protective guards over
shaft extensions and any couplings, sheaves and belts, sprockets
and chains, etc., mounted thereon.
WARNING
NEMA DIMENSIONS (Inches)
T
U
Input
Size
I
J
L
M N
O
Э
R
V
WP
X
+0.000
+0.000
Key
i
P
i
-0.0015
-0.0015
GR830
4.84 9.00 10.24 1.76 14.38 4.96 3.25 0.78 6.50 9.82 1.438 0.875 3/16 x 3/32 3/8 x 3.88
GR832
5.02 10.50 10.43 1.76 15.00 4.63 3.50 0.88 6.50 10.32 1.625 0.875 3/16 x 3/32 3/8 x 3.69
GR842
6.10 12.00 17.48 1.76 16.50 5.91 4.44 1.00 8.50 13.31 1.688 1.250 3/16 x 3/32 3/8 x 4.68
GR852
7.50 14.00 18.88 1.76 16.50 5.62 5.12 1.25 8.50 14.99 2.188 1.250 3/16 x 3/32 1/2 x 4.63
GR860
N/A 17.00 19.60 1.76 22.50 7.63 6.50 1.50 8.50 17.12 2.438 1.500 3/16 x 3/32 5/8 x 6.50
GR870
H
N/A 19.00 19.68 1.76 24.00 7.63 7.59 1.75 10.36 21.84 2.937 1.625 3/16 x 3/32 3/4 x 6.44
GR880
H
N/A 24.00 21.30 1.76 27.06 9.25 8.86 2.00 11.64 25.93 3.438 1.375 3/16 x 3/32 7/8 x 8.00
GR8100
H
N/A 28.00 25.78 1.76 29.50 9.43 10.36 2.25 13.85 31.35 3.938 2.250 3/16 x 3/32 1 x 7.75