Kaman Product Catalog 1050

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

126

Maximum Rating Tables

GR Series • All Stock Styles

SIZES 870, 880, 8100 • 1.0 S.F.

SIZE GR870

SIZE GR880

SIZE GR8100

Overall

Input

Output

Input

Output

Input

Output

Input

Output

Ratio RPM RPM HP

(lb-in)

1750 23.30 9.13 7.55 20601 15.50 13.00 35507 26.50 22.50 61010

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.

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.

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

Select and order

double reduction

reducers with

model number.

Refer to page 112

for Model Number

System.