Grove Gear Products Catalog 8050

Maximum Rating Tables GR Series • All Stock Styles

Single Reduction

Worm Gear Reducers

SIZES 870, 880, 8100 • 1.0 S.F.

SIZE GR870

SIZE GR880

SIZE GR8100

Select and order double reduction reducers with model number. Refer to page 112 for Model Number System.

Overall

Input

Output

Input

Output

Output

Input

Output

Output

Input

Output

Output

Ratio RPM RPM HP

HP

TQ

HP

HP

TQ

HP

HP

TQ

(lb-in) (lb-in) 1750 23.30 9.13 7.55 20601 15.50 13.00 35507 26.50 22.50 61010 75 1170 15.60 7.69 6.16 25161 12.00 9.78 39931 20.40 16.90 68348 1750 17.50 9.13 7.22 27535 12.60 10.10 38575 20.80 17.00 64363 100 1170 11.70 7.04 5.37 30607 9.55 7.40 42191 16.20 12.80 72302 1750 11.70 7.25 5.53 30621 9.82 7.62 42212 16.50 13.00 72069 150 1170 7.80 5.31 3.90 32270 7.23 5.41 44811 12.30 9.38 77678 1750 8.75 5.81 4.32 31857 7.92 5.98 44158 13.50 10.30 76261 200 1170 5.85 4.21 3.00 33136 5.75 4.18 46181 9.93 7.31 80671 1750 7.00 4.90 3.54 31238 6.61 4.88 43010 11.30 8.45 74571 250 1170 4.68 3.55 2.46 32432 4.80 3.40 44863 8.31 5.96 78638 1750 5.83 4.27 2.99 33136 5.82 4.17 46181 10.10 7.29 80671 300 1170 3.90 3.06 2.05 34024 4.19 2.87 47593 7.29 5.06 83779 1750 4.38 3.41 2.29 33805 4.65 3.20 47245 8.12 5.62 83011 400 1170 2.93 2.43 1.56 34477 3.33 2.19 48316 5.85 3.87 85377 1750 3.50 2.86 1.85 34209 3.88 2.60 45835 6.89 4.57 84431 500 1170 2.34 2.04 1.26 34752 2.78 1.77 46812 4.96 3.13 86351 1750 2.92 2.53 1.56 34477 3.43 2.18 48316 6.03 3.86 85377 600 1170 1.95 1.81 1.06 34936 2.46 1.48 49049 4.34 2.63 87006 1750 2.33 2.13 1.27 33682 2.87 1.77 46812 5.04 3.13 82964 750 1170 1.56 1.53 0.86 34109 2.05 1.20 47481 3.63 2.13 84459 1750 1.94 1.73 1.01 32016 2.50 1.47 46627 4.13 2.49 79353 900 1170 1.30 1.24 0.68 32391 1.80 0.99 46972 2.97 1.69 80681 1750 1.75 1.73 0.95 35031 2.34 1.33 49201 4.21 2.37 87344 1000 1170 1.17 1.24 0.64 35308 1.68 0.90 49644 3.05 1.60 88332 1750 1.46 1.52 0.79 35168 2.05 1.12 49420 3.73 1.98 87832 1200 1170 0.975 1.10 0.53 35402 1.48 0.75 49793 2.72 1.34 88666 1750 1.17 1.28 0.65 34325 1.71 0.90 47819 3.13 1.61 85216 1500 1170 0.780 0.93 0.44 34542 1.23 0.61 48159 2.28 1.09 85980 1750 0.972 1.04 0.51 32580 1.29 0.67 42944 2.56 1.28 81353 1800 1170 0.650 0.76 0.34 32770 0.93 0.45 43207 1.86 0.86 82031 1750 0.729 0.90 0.39 33661 1.20 0.54 46987 2.17 0.96 83314 2400 1170 0.488 0.65 0.26 33868 0.87 0.37 47314 1.59 0.65 84037 1750 0.583 0.76 0.30 32512 1.02 0.42 45708 1.83 0.78 80836 3000 1170 0.390 0.55 0.20 32710 0.74 0.29 46025 1.35 0.51 81535 1750 0.486 0.60 0.23 29307 0.80 0.32 41112 1.46 0.57 73284 3600 1170 0.325 0.44 0.15 29473 0.58 0.21 41376 1.07 0.38 73877 * Actual ratio combinations supplied by Factory may vary from above depending on application and manufacturing requirements. Refer to page 131 for exact ratio of worm gear primary stage and worm gear secondary stage. (lb-in)

Double Reduction

Worm - Worm Gear Reducers

Double Reduction

Helical - Worm Gear Reducers

WASHGUARD ® Reducers

and GEAR+MOTOR™ Ratio Multipliers

Accessories and

At speeds above 1750 input RPM, gear reducers may become thermally limited. For continuous operation, limit input HP to 1750 RPM input ratings shown. Contact Factory with application requirements if higher speeds are required.

Additional Capabilities 126

For input/ output shaft overhung load and thrust load ratings, refer to pages 419-420. (Not available in NH or EL)

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