Grove Gear Products Catalog 8050

ELECTRA-GEAR EL Series Dimensions Styles: DFRMQ, DFRM, DFR

Single Reduction Worm Gear Reducers

STYLE DFRMQ, DFRM, DFR DIMENSIONS (Inches)

Size

A

BB

BC

BH

B1

C

CD CE

C1

D1

D2

I

L

M

N

O*

EL818 EL821 EL824 EL826 EL830 EL832 EL842 EL852 EL860 EL818 EL821 EL824 EL826 EL830 EL832 EL842 EL852 EL860 Size

3.50 1.27 5.94 7.79 2.48 7.00 1.75 1.33 3.91 1.51 6.32 8.16 2.76 7.63 2.06 1.33

4.66 4.66 4.66 4.66 5.86 5.86 6.88 8.00

1.72 2.31 1.72 2.63 1.72 2.50 1.72 3.25 2.31 3.50 2.31 4.00 2.63 4.50 3.25 4.25

3.03 3.40 3.61 4.17 4.81 5.00 6.15 7.55 7.88

3.82 3.82 3.82 3.82 4.45 4.45 4.82 6.07 6.75

1.87 1.87 1.87 1.87 1.78 1.78 1.76 2.45 2.31

4.39 4.68 5.14 5.63 6.62 6.62 8.12 9.06

1.85 2.09 2.46 2.53 3.37 3.37 4.22 4.50 5.25

Worm - Worm Gear Reducers

4.06 1.35 6.43 8.27

--

7.81 2.38 1.33

4.84 1.35 6.99 8.83 4.21 8.81 2.63 1.33 5.25 2.36 8.04 10.30 4.50 10.06 3.00 1.75 5.25 2.54 8.23 10.49 4.53 10.81 3.25 1.75 6.13 2.06 9.17 11.56 5.71 13.00 4.25 2.06 7.19 1.18 11.57 14.47 7.82 13.75 5.25 2.63

Double Reduction

7.00 0.25 12.63 15.69

--

14.25 6.00 3.25

10.50 3.50 5.00

10.75

T

U

Input Key

Input Key

Output

R

V

X

XB

Y

Z

+0.000 -0.0015 0.750 1.000 1.125 1.250 1.500 1.625 1.750 2.000 2.250

+0.000 -0.0015 0.500 0.500 0.500 0.500 0.625 0.625 0.625 0.750 0.875

(Style DF only) i

(Style DFM only) i

Key

3.53 0.38 4.25 0.50 4.15 0.63 4.56 0.63 5.75 0.81 5.94 0.81 6.06 0.75 5.75 0.69 7.25 1.00

3.13 6.88 7.75 7.75

-

4.00

0.34 0.44 0.50 0.50 0.56 0.56 0.69 0.81 0.81

1/8 x 1.00 1/8 x 1.00 1/8 x 1.00 1/8 x 1.00 3/16 x 1.38 3/16 x 1.38 3/16 X 1.38 3/16 x 1.63 3/16 x 1.63

1/8 x 1.00 1/8 x 1.00 1/8 x 1.00 1/8 x 1.00 3/16 x .500 3/16 x .500 3/16 x .500 3/16 x .500 3/16 x .500

3/16 X 1.38 1/4 x 1.44 1/4 X 1.62 1/4 X 1.62 3/8 X 2.25 3/8 X 2.25 3/8 x 2.50 1/2 x 2.50 5/8 X 4.00

Helical - Worm Gear Reducers

6.00 6.49 6.50 6.99 6.50 6.99 8.25 8.74 8.25 8.74 9.75 11.00 11.50 14.24 13.00 17.00

Double Reduction

9.125-9.500 9.125-.9500

10.75 12.75 15.25

Motor Mounting Dimensions NEMA DIMENSIONS (Inches) LM LM1 L1 LQ

NEMA DIMENSIONS (Inches)

LQ1 RQ Size 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC EL818 6.07 -- 3.82 -- 3.79 -- 3.09 -- EL821 6.07 -- 3.82 -- 3.79 -- 3.09 -- EL824 6.07 -- 3.82 -- 3.79 -- 3.09 -- EL826 6.07 -- 3.82 -- 3.79 -- 3.09 -- EL830 5.88 -- 3.64 -- 4.42 -- 3.59 -- EL832 5.88 -- 3.64 -- 4.42 -- 3.59 -- EL842 6.26 -- 4.00 -- 4.79 -- 4.06 -- EL852 7.04 7.86 4.88 4.88 5.33 5.33 4.82 4.82 EL860 7.86 8.50 5.56 5.56 6.16 6.16 5.51 5.51 * 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.

Frame AJ AK BD BE BE1 Bore Keyway u

BF

Dia.

WASHGUARD ® Reducers and GEAR+MOTOR™ Ratio Multipliers

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

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

INTEGRAL GEARMOTOR INPUTS AVAILABLE — Contact Factory for price and availability. 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 132 for GR Series dimensions.

ELECTRA-GEAR INTERCHANGE GUIDE

Additional Capabilities

Original Style

New Style

Accessories and

NOT A

DFRMQ

STANDARD CATALOGED

DFRM

OPTION DFR NOTE: New styles are not a direct replacement to orignal ring base.

Convert Style DFR to motorized coupling input using kits shown on page 278.

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