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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.com
231
NH Series
Dimensions
Styles: DXMQ, DXM, DX
STYLE DXMQ, DXM, DX DIMENSIONS (Inches)
* Applies to double output shaft
X
Keyway width by depth
Q
48CZ not available
L
Style D and DM only
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
H
T
U
Input
Output
Size
A
B
C
CD
CE
D
D1
E
F
G
I
J
K
L
M
N
O
O*
WP
X
+0.000
+0.000
Key
L
Key
Tap Size
Depth
-0.0015
-0.0015
NH813
2.82 3.80 4.66 1.33 1.91 1.72 2.81 2.47 2.00 1.00 5/16-18 UNC .50 2.61 3.25 1.63 N/A N/A 4.00 2.16 1.94 5.00 6.16 0.750 N/A
N/A
3/16 X 1.50
NH815
2.57 4.06 5.00 1.54 1.91 1.88 2.81 2.47 1.88 0.94 5/16-18 UNC .63 3.14 3.25 1.63 N/A N/A 4.25 2.56 2.35 5.00 6.53 0.750 N/A
N/A
3/16 X 1.50
NH818
2.56 4.50 5.44 1.75 1.91 2.06 2.81 2.47 1.88 0.94 5/16-18 UNC .63 3.24 3.75 1.88 N/A N/A 4.75 2.94 2.73 5.00 6.92 1.000 N/A
N/A
1/4 X 1.75
NH821
2.50 4.50 6.00 2.06 1.91 2.31 2.81 2.47 1.88 0.94 5/16-18 UNC .63 3.61 3.25 1.63 N/A N/A 4.34 2.66 2.45 5.00 7.48 0.875 N/A
N/A
3/16 X 1.50
NH824
2.94 5.25 6.88 2.38 2.36 2.69 3.25 2.82 2.13 1.06 3/8-16 UNC .69 3.77 4.00 2.00 5.51 2.38 4.88 2.91 2.69 6.50 8.64 1.000 0.625 3/16 X 1.63 1/4 X 1.75
NH826
2.88 5.75 7.38 2.63 2.36 2.94 3.25 2.82 2.13 1.06 3/8-16 UNC .69 4.34 4.00 2.00 6.07 2.38 5.25 3.28 3.07 6.50 9.13 1.125 0.625 3/16 X 1.63 1/4 X 1.75
NH830
3.12 6.62 8.25 3.00 2.36 3.38 3.25 2.82 2.38 1.19 3/8-16 UNC .75 4.84 4.63 2.31 6.57 2.38 5.77 3.56 3.31 6.50 9.95 1.250 0.625 3/16 X 1.63 1/4 X 1.75
NH832
4.44 8.00 10.06 3.25 2.36 4.19 3.25 2.82 3.50 1.75 1/2-13 UNC 1.00 5.02 7.00 3.50 6.76 2.38 7.03 4.24 3.99 6.50 11.01 1.500 0.625 3/16 X 1.63 3/8 X 2.25
NH842
4.75 9.75 11.50 4.25 2.87 4.50 4.25 4.03 3.75 1.88 1/2-13 UNC 1.00 6.10 7.50 3.75 9.57 3.47 7.50 3.88 3.59 8.50 13.37 1.750 1.250 1/4 X 2.50 3/8 X 2.25
NH852
6.19 11.00 12.69 5.25 2.87 4.88 4.25 4.03 4.50 2.25 5/8-11 UNC 1.25 7.50 9.00 4.50 10.88 3.38 9.00 4.72 4.47 8.50 14.75 2.000 1.250 1/4 X 3.00 1/2 X 2.50
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
56C/140TC
56C/140TC
NH813
N/A
N/A N/A
8.29
N/A
N/A
N/A
7.79
N/A
N/A
N/A
NH815
N/A
N/A N/A
8.82
N/A
N/A
N/A
8.32
N/A
N/A
N/A
NH818
N/A
N/A N/A
8.92
N/A
N/A
N/A
8.42
N/A
N/A
N/A
NH821
N/A
N/A N/A
9.29
N/A
N/A
N/A
8.79
N/A
N/A
N/A
NH824
12.49
N/A N/A
9.88
Q
N/A
N/A
N/A
9.38
Q
N/A
N/A
N/A
NH826
13.05
N/A N/A
10.44
Q
N/A
N/A
N/A
9.94
Q
N/A
N/A
N/A
NH830
13.55
N/A N/A
10.94
Q
N/A
N/A
N/A
10.44
Q
N/A
N/A
N/A
NH832
13.74
N/A N/A
11.13
Q
N/A
N/A
N/A
10.63
Q
N/A
N/A
N/A
NH842
N/A
20.66 20.66
N/A
14.97 14.97 15.53
N/A
14.46 14.46
14.86
NH852
N/A
22.06 22.06
N/A
16.37 16.37 16.93
N/A
15.86 15.86
16.26
Frame
AJ
AK
BD
BE
BE1 Bore Keyway
X
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
NEMA DIMENSIONS (Inches)
Grove Gear OE Series
Grove Gear IRONMAN
NH Series
HW
UF
DXMQ
HWUFC
DXM
HWU
DX
GROVE GEAR OE SERIES INTERCHANGE GUIDE
Refer to page 123 for complete interchange guide for original Grove Gear OE Series products.