Grove Gear 8050 Catalog

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Helical - Inline Triple Reduction Dimensions Style RFN

BRAVO ®

LIFTING EYE ON R887, R897 & R8107 ONLY

C

Q

FV

V

VO

FO

BF DIA HOLES

INPUT KEY

Single Reduction Reducers

OUTPUT KEY

AJ

BD

DB

FU

UY

AK

FZ

FM TAP

U

INPUT SHAFT

SA OUTPUT SHAFT

OA

BRAVO ® Worm - Worm

M TAP

BB

Double Reduction

GA

AH

inch mm

Gearcase

GA

AJ

AH

AK

BB

BD

BF

Q

Model

OA

SA

DB

+ 0 - .002 - .003 - .054 + 0 - .002 - .003 - .054

7.087 7.087 180 7.087 5.118 130 5.118 130 180

8.40 213 7.29 185 8.40 213 7.29 185 9.44 240

7.08 180 151 5.94 146 5.75 4.96 126 4.96 126 103 4.04 103 4.04

2.87 73 86 3.39 49 1.91 2.36 60 1.91 49 1.91 49 1.91 49 1.50 38 1.50 38

2.76 2.76 70 2.76 1.97 50 1.97 50 70 140 5.51 120 3.93 100 3.15 80 4.72 70

8.46 215 6.50 165 8.46 215 6.50 165 8.46 215

0.14

9.84 250 250 9.84 250 9.84 7.90 200 7.90 200

0.53 0.47 12 0.47 12 14 0.53 14 0.53 0.53 14 14 18 0.69 19 0.75 0.75

0.43 11 0.43 11 0.43 11 0.43 11 0.43 11 18 0.70 15 0.59 25.4 1.00 26 1.02

8.92 227 183 7.22 8.92 227 183 7.22 247 9.71

RFN827

4

0.14

RFN837

4

- .0004 - .0029 + 0 - .064 - .0004 - .0029 + 0 - .064 - .0004 - .0029 + 0 - .064 + .0001 - .0027 + 0 - .072 - .0005 - .0025 + 0 - .051 - .0005 - .0032 + 0 - .070 - .0005 - .0032 + 0 - .070

0.16

RFN847

4

BRAVO ® Helical - Worm

0.16

RFN857

4

0.16 4 0.16

Double Reduction BRAVO ® Accessory Kits Model

RFN867

180

9.055

13.78 11.81 300 17.74 17.72 451 350

10.43

278 10.93 13.05 331 417 17.98 457 16.42

10.79

RFN877

230

265

274

4

9.843

0.20

11.81

12.99

RFN887

250

300

330

5

13.780

0.19

15.75

16.41

9.45

RFN897

350

400

5

11.02 280 240

417

13.780

0.20

15.75

19.00

RFN8107

350

450

400

19

483

5

Output Shaft - Inches

+ 0.000 - 0.001

M

VO

U

UY

V

KEY

2.76 3.94 4.72 3.15 N/A 2.36 N/A N/A 5.51

RFN847 RFN837 RFN857 RFN827 RFN867 RFN8107 RFN877 RFN887 RFN897 RFN847 RFN837 RFN827 RFN867 RFN8107 RFN877 RFN887 RFN897 Model

1/2-13 x 1.13 3/4-10 x 1.61 3/4-10 x 1.61 3/4-10 x 1.61 5/8-11 x 1.38 1/2-13 x 1.13 3/8-24 x 0.88 3/8-24 x 0.91 3/8-24 x 0.91

1.000 1.250 1.375 1.000 1.375 1.625 2.875 2.375 2.125

1.51 2.34 2.64 1.78 1.51 1.36 1.10 1.10 3.19

1/4 x 1/4 x 1-1/2 1/4 X 1/4 x 1-11/16 5/16 x 5/16 x 1-3/4 1/4 x 1/4 x 1-1/2 5/16 x 5/16 x 1-3/4 3/4 x 3/4 x 4-1/8 1/2 x 1/2 x 2-5/8 5/8 x 5/8 x 3-3/4 3/8 x 3/8 x 2-1/4

0.41 0.40 0.44 0.40 0.44 0.67 0.45 0.64 0.70

Input Shaft* - Inches

Gearcase/Input

Model

C

+ 0.000 - 0.001

FM N/A

FO

FU

FV

KEY

FZ

Gear Reducers

RFN847 RFN837 RFN857 RFN827 RFN867 RFN8107 RFN877 RFN887 RFN897

0.25

3/16 x 3/16 x 1-1/16 3/16 x 3/16 x 1-1/16 3/16 x 3/16 x 1-1/16 3/16 x 3/16 x 1-1/16 3/16 x 3/16 x 1-1/16 3/16 x 3/16 x 1-1/16

0.625

31.46 25.79 19.66 16.70 12.19 14.78 14.78 12.19 15.82

0.69

1.57

N/A N/A N/A N/A N/A

0.25 0.25 0.25 0.25 0.25 0.35 N/A N/A

0.625 0.750 0.750 0.750 0.750 1.125 1.375 0.875

0.82 0.69 0.82 0.82 0.82 1.51 1.23 0.95

1.57 1.57 1.57 1.57 1.57 3.15 2.63 2.25

High Efficiency Helical - Inline RFN857

1/2-13 x 1.41 3/8-16 x 1.00 1/4-20 x 0.75

3/16 x 3/16 x 2

5/16 x 5/16 x 2-3/8 1/4 x 1/4 x 2-1/2

* See Page 444 For Additional Shaft Diameters Available.

Dimensions subject to change without notice

Gear Reducers

For safety and to comply with local and national safety codes, the purchaser or user must provide protective guards over all shaft extensions and devices mounted thereon.

WARNING

High Efficiency Helical - Worm

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