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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
237
NH Series
Dimensions
Styles: DXFHMQ, DXFHM, DXFH
STYLE DXFHMQ, DXFHM, DXFH DIMENSIONS (Inches)
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X
Keyway width by depth
Q
48CZ not available
L
Style DXFH and DXFHM 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
4 -!8s
5
Input
Output
Size
A
AE
B
BL
C
CD
CE
D
D1
E
H
I
L
M
N
R
V
W
WP
X
XA
Y
-0.000
+0.000
Key
L
+EYs
+0.0025
-0.0015
NH813
2.82 0.53 3.80 0.38 4.66 1.33 1.91 1.72 2.81 2.47 0.34 2.61 N/A N/A 2.37 2.52 1.00 5.92 5.00 5.00 6.47 4.50 0.625
N/A
1/8 X 1.00 3/16 x 1.50
NH815
2.57 0.51 4.06 0.38 5.00 1.54 1.91 1.88 2.81 2.47 0.34 3.14 N/A N/A 2.20 3.50 1.00 6.79 5.00 5.88 6.84 5.12 0.625
N/A 3/16 X 1.38 3/16 x 1.50
NH818
2.56 0.56 4.50 0.38 5.44 1.75 1.91 2.06 2.81 2.47 0.34 3.24 N/A N/A 2.37 2.74 1.44 6.64 5.00 5.88 7.30 5.00 1.000
N/A 3/16 X 1.38 1/4 x 3.00
NH821
2.50 0.85 4.50 0.38 6.00 2.06 1.91 2.31 2.81 2.47 0.34 3.61 N/A N/A 2.53 3.50 1.94 7.37 5.00 6.25 7.79 5.56 1.500
N/A 3/16 X 1.38 3/8 x 3.00
NH824
2.94 0.56 5.25 0.44 6.88 2.38 2.36 2.69 3.25 2.82 0.34 3.77 5.51 2.38 2.53 3.53 1.94 8.29 6.50 7.06 8.95 6.24 1.500 0.625 3/16 X 1.63 3/8 x 3.00
NH826
2.88 0.56 5.75 0.50 7.38 2.63 2.36 2.94 3.25 2.82 0.34 4.34 6.07 2.38 2.53 3.62 1.94 8.90 6.50 7.63 9.44 6.68 1.500 0.625 3/16 X 1.63 3/8 x 3.00
NH830
3.12 0.56 6.62 0.50 8.25 3.00 2.36 3.38 3.25 2.82 0.41 4.84 6.57 2.38 2.78 3.75 2.51 9.50 6.50 8.63 10.26 7.34 2.188 0.625 3/16 X 1.63 1/2 x 3.00
NH832
4.44 0.57 8.00 0.56 10.06 3.25 2.36 4.19 3.25 2.82 0.53 5.02 6.76 2.38 3.36 5.06 2.51 11.84 6.50 10.63 11.39 9.00 2.188 0.625 3/16 X 1.63 1/2 x 3.00
NH842
4.75 0.63 9.75 0.62 11.50 4.25 2.87 4.50 4.25 4.03 0.56 6.10 9.57 3.47 4.25 4.56 2.75 12.95 8.50 11.50 13.87 9.66 2.188 1.250 1/4 X 2.50 1/2 x 3.00
NH852
6.19 0.97 11.00 0.75 12.69 5.25 2.87 4.88 4.25 4.03 0.69 7.50 10.88 3.38 5.25 5.62 4.26 15.50 8.50 14.00 15.88 11.76 3.438 1.250 1/4 X 3.00 7/8 x 3.44
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
HWM
F
DXFHMQ
HWMFC
DXFHM
HMY
DXFH
GROVE GEAR OE SERIES INTERCHANGE GUIDE
Refer to page 123 for complete interchange guide for original Grove Gear OE Series products.