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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.com229
NH Series
Dimensions
Styles: DXFEMQ, DXFEM, DXFE
STYLE DXFHMQ, DXFHM, DXFH DIMENSIONS (Inches)
** Key not provided with gear reducer. Keyway dimension shown.
u
Keyway width by depth
n
48CZ not available
‡ Metric IEC B5 input flange options are available only on quill input styles.
i
Style DXFE and DXFEM 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
T
U
Input
Size
A AC
AD
AM B CD D F
FH H I
L M N O R V WP X
+0.000 +0.000
Key
i
P**
-0.0015 -0.0015
NH830
11.00 0.375 .31-18 UNC X 1.00 DP 2.22 11.00 3.00 3.67 9.00 5.12 0.56 4.84 9.98 1.76 2.78 4.66 3.38 0.78 6.50 8.63 1.438 0.625 3/16 x 3/32 3/8 x 3.88
NH832
12.50 0.375 .31-18 UNC X 1.00 DP 2.79 12.50 3.25 4.91 10.50 5.75 0.56 5.02 10.17 1.76 3.36 4.63 4.19 0.88 6.50 10.63 1.625 0.625 3/16 x 3/32 3/8 x 3.69
NH842
14.00 0.500 .38-16 UNC X 1.00 DP 3.62 14.00 4.25 5.74 12.00 6.75 0.69 6.10 10.75 1.76 4.25 5.66 4.50 1.00 6.50 11.50 1.688 1.250 3/16 x 3/32 3/8 x 4.68
NH852
16.00 0.750 .38-16 UNC X 1.00 DP 4.28 16.00 5.25 6.00 14.00 8.00 0.81 7.50 12.14 1.76 5.25 5.62 4.88 1.25 6.50 14.00 2.188 1.250 3/16 x 3/32 1/2 x 4.63
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
NH830
12.23 N/A N/A 10.75
n
N/A N/A N/A 10.36
n
N/A N/A N/A
NH832
12.42 N/A N/A 10.94
n
N/A N/A N/A 10.55
n
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
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
NEMA DIMENSIONS (Inches)
Grove Gear OE Series
Grove Gear IRONMAN
NH Series
HWM
F
DXFEMQ
HWMFC
DXFEM
HMY
DXFE
GROVE GEAR OE SERIES INTERCHANGE GUIDE
Refer to page 113 for complete interchange guide for original Grove Gear OE Series products.