ELECTRA-GEAR
www.grovegear.com
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
105
STYLE BMQ, BM, B DIMENSIONS (Inches)
H
T U
Input Key Input Key
Output
Size A B B1 C CD D DX F G I J K L M N O O*
+0.000 +0.000
(Style B only)i (Style BM only)i
Key
Tap Size Depth -0.0015 -0.0015
EL813 2.82 3.80 -- 4.66 1.33 1.72 -- 2.00 1.00 5/16-18 0.50 2.40 3.25 1.63 3.82 1.87 4.00 2.16 1.96 0.625 0.500 1/8 x 1.00 1/8 x 1.00 3/16 x 1.38
EL818 3.50 4.83 2.48 5.86 1.75 2.31 -- 2.94 1.47 5/16-18 0.63 3.03 3.69 1.84 4.45 1.78 4.39 2.05 1.85 0.750 0.625 3/16 x 1.38 3/16 x .500 3/16 X 1.38
EL821 3.91 5.75 2.76 6.88 2.06 2.63 -- 3.25 1.63 3/8-16 0.87 3.40 4.13 2.06 4.82 1.76 4.68 2.29 2.09 1.000 0.625 3/16 X 1.38 3/16 x .500 1/4 x 1.44
EL824 4.06 5.86 -- 6.94 2.38 2.50 -- 2.88 1.44 3/8-16 0.69 3.61 5.00 2.50 5.51 2.45 5.14 2.66 2.46 1.125 0.750 3/16 X 1.63 3/16 x .500 1/4 X 1.62
EL826 4.84 7.17 4.21 8.00 2.63 3.25 -- 3.38 1.69 3/8-16 0.69 4.17 5.00 2.50 6.07 2.45 5.63 2.73 2.53 1.250 0.750 3/16 x 1.63 3/16 x .500 1/4 X 1.62
EL830 5.25 8.11 4.50 8.94 3.00 3.50 -- 4.13 2.06 1/2-13 1.00 4.81 5.75 2.88 6.56 2.31 6.62 3.60 3.37 1.500 0.875 3/16 x 1.63 3/16 x .500 3/8 X 2.25
EL832 5.25 8.11 4.53 10.50 3.25 4.00 -- 4.13 2.06 1/2-13 1.00 5.00 6.63 3.31 6.75 2.31 6.62 3.60 3.37 1.625 0.875 3/16 x 1.63 3/16 x .500 3/8 X 2.25
EL842 6.13 9.63 5.71 11.69 4.25 4.50 -- 3.75 1.88 5/8-11 1.19 6.15 7.00 3.50 9.57 3.47 8.12 4.50 4.22 1.875 1.250 1/4 x 2.50 1/4 x 2.50 3/8 x 2.50
EL852 7.19 11.50 7.82 12.25 5.25 4.25 0.75 5.25 2.63 3/4-10 1.44 7.55 9.62 4.81 10.88 3.38 9.06 4.78 4.50 2.000 1.250 1/4 X 3.00 1/4 x 3.00 1/2 x 2.50
EL860 7.00 13.50 -- 14.25 6.00 5.00 1.63 5.38 2.69 7/8-9 1.63 7.88 11.00 5.50 10.99 3.00 10.75 5.25 5.25 2.250 1.500 3/8 x 3.00 3/8 x 2.75 5/8 X 4.00
Motor Mounting Dimensions
NEMA DIMENSIONS (Inches)
LM LM1 L1 LQ LQ1 RQ
Size 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC
EL813 6.07 -- 3.82 -- 3.79 -- 3.09 --
EL818 5.89 -- 3.64 -- 4.42 -- 3.59 --
EL821 6.26 -- 4.00 -- 4.79 -- 4.06 --
EL824 6.48 7.30 4.29 4.29 4.77 4.77 4.09 4.09
EL826 7.04 7.86 4.88 4.88 5.33 5.33 4.82 4.82
EL830 7.67 8.31 5.38 5.38 5.97 5.97 5.32 5.32
EL832 7.86 8.50 5.56 5.56 6.16 6.16 5.51 5.51
EL842 11.25 12.53 9.57 9.57 6.45 6.45 6.04 6.04
EL852 12.65 13.93 10.88 10.88 7.85 7.85 7.35 7.35
EL860 -- 11.94 10.99 10.99 -- -- -- --
Frame AJ AK BD BE BE1
Bore
Keyway
u
BF
Dia.
56C 5.88 4.50 6.50 0.38 N/A .625 3/16 X 3/32 0.41
140TC 5.88 4.50 6.50 0.38 N/A .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
WARNING
NEMA DIMENSIONS (Inches)
* Applies to double output shaft
u
Keyway width by depth
i
Solid input shaft and C-faced coupling input reducers have different input shaft length and key.
For safety, purchaser or user should provide protective guards over shaft extensions and any couplings, sheaves
and belts, sprockets and chains, etc., mounted thereon.
INTEGRAL GEARMOTOR INPUTS AVAILABLE
— Contact Factory for price and availability.
Original Style New Style
MSC or MLSC BMQ
MC or MLC BM
M or ML B
M + “KV” Kit B + “KV” Kit
ELECTRA-GEAR INTERCHANGE GUIDE
Convert Style B to motorized coupling input using kits shown on page 294.
EL SERIES MOUNTING DIMENSIONS
— EL Series mounting dimensions are the same as the original ELECTRA-GEAR
product with an option to match the industry standard dimensions of GR Series.
— See page 62 for GR Series dimensions.
EL Series
Dimensions
Styles: BMQ, BM, B
(2 paginas)
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