Grove Gear 8050 Catalog

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Style B

Style H

Single Reduction

Worm Gear Reducers

Size 821

Output Torque

Input Output

Input

Output

Left Hand Catalog No.

Right Hand Catalog No.

Double Extension

Hollow Output Catalog No.*

Ratio

RPM

RPM

HP

HP

Catalog No.

(lb-in)

2500 1750 1170 2500 1750 100

500 350 234 333 233 156 250 175 117 166 116 6.7 125 20 13 78

4.305 3.653 2.873 0.433 3.300 2.793 2.194 0.341 2.973 2.464 1.905 0.300 2.284 1.887 1.459 0.245 1.914 1.584 1.229 0.226 1.623 1.333 1.030 0.200 1.359 1.129 0.882 0.181 1.096 0.916 0.722 0.167 0.925 0.769 0.606 0.149 0.799 0.674 0.539 0.145 0.357 0.304 0.241 0.034 0.251 0.217 0.175 0.026

4.043 3.410 2.657 0.310 3.051 2.562 1.989 0.230 2.722 2.235 1.702 0.189 2.035 1.661 1.259 0.138 1.642 1.338 1.012 0.111 1.359 1.094 0.820 0.088 1.102 0.896 0.677 0.074 0.829 0.674 0.509 0.056 0.670 0.539 0.403 0.043 0.535 0.435 0.328 0.036 0.236 0.190 0.141 0.015 0.150 0.122 0.091 0.010

510 614 716 977 577 692 804 686 805 917 769 897

5

__8210001

__8210013

__8210025

__8210501.XX

7.5

__8210002

__8210014

__8210026

__8210502.XX

1170

100

1089

2500 1750

Double Reduction

10

__8210003

__8210015

__8210027

__8210503.XX

1170

Worm - Worm Gear Reducers 100 10

1192

2500 1750

15

__8210004

__8210016

__8210028

__8210504.XX

1170

1017 1309

100

2500 1750

828 964

87 58

20

__8210005

__8210017

__8210029

__8210505.XX

1170

1090 1397

100

5.0 100

2500 1750

857 985

70 46 83 58 4.0 62 43 29 50 35 23 41 29 19 31 21 14 25 17 11 2.5 2.0 1.7 1.3 1.0 3.3

25

__8210006

__8210018

__8210030

__8210506.XX

1170

1104 1386

100

Double Reduction

2500 1750

833 968

30

__8210007

__8210019

__8210031

__8210507.XX

Helical - Worm Gear Reducers 1170 39

1095 1399

100

2500 1750

836 971

40

__8210008

__8210020

__8210032

__8210508.XX

1170

1097 1401

100

2500 1750

845 970

WASHGUARD ® Reducers 50 60

__8210009

__8210021

__8210033

__8210509.XX

1170

1086 1359

100

2500 1750

809 940

__8210010

__8210022

__8210034

__8210510.XX

1170

1061 1354

100

and GEAR+MOTOR™ Ratio Multipliers 2500 1750 80 1170 100 2500 1750 100 1170 100

476 547 609 743 379 439 491 605

__8210011

__8210023

__8210035

__8210511.XX

__8210012

__8210024

__8210036

__8210512.XX

How To Build a Part Number For Size GRG821, GRL821, NH821, EL821

3. For hollow output, replace “XX” suffix with bore code (see next page for codes)

1. Select partial catalog number from the selection table 2. Replace leading “__” with series code (GRG, GRL, NH, EL)

Example: Direct replacement to LEESON IRONMAN, style B, 5:1 ratio, left hand output

GRL-B821-5-L GRL8210001

GRG =

GRL =

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Accessories and

Additional Capabilities

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