Grove Gear 8050 Catalog
GR Series Dimensions Styles: DXTMQ, DXTM, DXT
Single Reduction Worm Gear Reducers
STYLE DXTMQ, DXTM, DXT DIMENSIONS (Inches)
T
U
Input Key L
Output
Size
A
B
C
CD
CE
D
F
FC W
G
H
I
J
K
L
M
N
O
O*
V
WP
X
+0.000
+0.000
Key
-0.0015 -0.0015
GR813 GR815 GR818 GR821 GR824 GR826 GR830 GR832 GR842
4.24 5.37 5.19 1.33 1.91 2.25 3.31 5.56 6.50 5.97 1.54 1.91 2.50 4.31 5.75 6.99 6.44 1.75 1.91 2.75 4.50 6.00 7.69 7.09 2.06 1.91 3.00 4.69 6.19 8.37 7.69 2.38 2.36 3.25 4.88 6.50 9.25 8.75 2.63 2.36 3.69 5.25 7.50 10.00 9.63 3.00 2.36 4.00 5.88 7.75 11.12 10.25 3.25 2.36 4.38 6.13 9.75 13.24 12.38 4.25 2.87 5.44 7.63
N/A 1.66 0.34 2.61 4.37 2.19 N/A N/A 4.00 2.16 1.94 0.53 5.00 6.69 0.625 N/A N/A N/A 2.16 0.41 3.14 5.25 2.63 N/A N/A 4.31 2.11 1.90 0.59 5.00 7.15 0.750 N/A N/A N/A 2.25 0.41 3.24 5.75 2.88 N/A N/A 4.31 2.05 1.84 0.69 5.00 7.61 0.875 N/A N/A N/A 2.34 0.47 3.61 6.38 3.19 N/A N/A 4.68 2.29 2.08 0.72 5.00 8.17 1.000 N/A N/A N/A 2.44 0.49 3.77 7.06 3.53 10.24 1.76 5.14 2.66 2.44 0.75 6.50 9.20 1.125 0.625 3/16 x 1.38 1/4 X 1.75 3/16 X 1.50 3/16 X 1.50 3/16 X 1.38 1/4 X 1.44
Worm - Worm Gear Reducers
Double Reduction
N/A 2.63 0.53 4.34 8.00 4.00 10.80 1.76 5.63 2.73 2.52 0.75 6.50 9.88 V
0.625 3/16 x 1.38 1/4 X 1.75
N/A 2.94 0.53 4.84 8.44 4.22 11.56 3.61 6.75 3.60 3.36 0.75 6.50 10.57 1.250 0.625 3/16 x 1.38 1/4 X 1.75
N/A 3.06 0.53 5.02 9.50 4.75 11.75 3.61 7.06 3.66 3.42 0.81 6.50 11.20 V
0.625 3/16 x 1.38 3/8 X 2.25
N/A 3.81 0.66 6.10 11.12 5.56 17.48 3.61 8.12 4.50 4.21 1.00 8.50 14.31 1.875 1.250 1/4 x 2.00 1/2 X 3.06
GR852 10.50 16.24 15.13 5.25 2.87 6.25 8.38 N/A 4.19 0.78 7.50 14.12 7.06 18.88 3.61 9.06 4.78 4.53 1.13 8.50 16.12 2.000 1.250 1/4 x 2.00 1/2 X 3.50 GR860 12.00 18.99 17.75 6.00 2.87 7.75 9.50 10.24 4.75 0.91 N/A 16.49 8.25 19.60 3.61 10.00 4.65 4.65 1.25 8.50 18.37 2.500 1.250 1/4 x 2.00 5/8 X 4.00 GR870 + 13.38 15.38 20.33 7.00 3.49 9.00 11.25 10.63 5.63 1.13 N/A 13.00 6.50 19.68 2.50 11.76 5.65 5.65 1.42 10.36 23.25 2.750 1.125 1/4 x 2.25** 5/8 x 4.00** GR880 + 13.50 17.37 22.61 8.00 4.07 10.50 11.50 11.93 5.75 1.13 N/A 14.75 7.38 21.30 3.00 12.25 5.98 5.98 1.65 11.64 27.57 3.000 1.375 5/16 x 2.75** 3/4 x 4.50** GR8100 + 16.88 21.14 27.12 10.00 4.90 12.00 14.00 14.34 7.00 1.44 N/A 17.00 8.50 25.78 3.50 14.75 6.76 6.76 1.65 13.85 32.99 3.750 1.500 3/8 x 3.25** 7/8 x 5.00*
Helical - Worm Gear Reducers
V
See feature comparison chart.
Double Reduction
FEATURE COMPARISON (821, 826, 832)
Output
Mounting Footprint Needed?
Grove Gear
LEESON IRONMAN Interchange
Replace With Series Code
Output Key
All Other Features
Shaft Diameter
Flexaline
Size
Needed?
Needed?
Interchange
Below:
GRG GRL GRG GRL GRG GRL
Identical lj
821
Identical
Identical
Identical
1.250" 1.125" 1.500" 1.375"
826
Identical
Identical
Identical
3/8 x 2.63 5/16 x 2.63
832
Identical
Identical
WASHGUARD ® Reducers and GEAR+MOTOR™ Ratio Multipliers
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NOTE: If reducer is used without the accessory mounted, select based mounting dimensions on pages 212-213 (DXMQ, DXM, DX).
Motor Mounting Dimensions NEMA DIMENSIONS (Inches) LM L1 LQ LQ1
NEMA DIMENSIONS (Inches)
RQ
Frame
AJ
AK
BD
BE
BE1 Bore Keyway X
BF
Size
56C/ 140TC
180TC/ 250TC
48CZ/
180TC
210TC 250TC
48CZ/
180TC 210TC
250TC
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
210TC
56C/140TC
56C/140TC
GR813 GR815 GR818 GR821 GR824
N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.66 20.66 22.06 22.06 22.78 22.78
8.29 8.82 8.92 9.29
N/A N/A N/A N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A N/A
7.79 8.32 8.42 8.79
N/A N/A N/A N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A N/A
9.38 Q 9.94 Q
12.49
9.88 Q
GR826 13.05
10.44 Q 11.20 Q 11.39 Q
GR830
10.70 Q 10.89 Q
13.55
GR832 13.74
GR842 GR852 GR860
N/A N/A N/A
N/A N/A N/A
14.97 14.97 15.53 16.37 16.37 16.93 17.09 17.09 17.65
N/A N/A N/A
14.46 14.46 15.86 15.86 16.58 16.58
14.86 16.26 16.98
Y Metric IEC B5 input flange options are available only on quill input styles. Dimensions same for GRG and GRL Series W Sizes 860-8100 have extended cap on input cover. Dimension FC is to back face of the cap.
* Applies to double output shaft ** Key not provided with gear reducer. Keyway dimension shown. X Keyway width by depth Q 48CZ not available L Style DXT and DXTM only. + Sizes 870-8100 have an input shaft which is not aligned with centerline of primary stage reducer.
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
Additional Capabilities
Accessories and
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