Grove Gear GR-BM842-80-R-56 (catalog GR8420059.00) 80:1 ratio single-reduction worm gear speed reducer with 4.25" center distance. Cast iron housing with motorized non-flanged solid output assembly, right-hand rotation. 56C input flange accepts standard NEMA C-face motors. Input diameter 1.25", output diameter 1.875". Blue painted finish, Viton shaft seals, tapered roller bearings. Factory-filled PAG synthetic oil. Base mount configuration.

Assembly

BM-R

Center Distance

4.2 In.

Center distance (in)

4.25

Center Distance Range

Above 3.25"

Gear Drive Reductions

Single

Gear Type

Worm

H-Tap Size

5/8-11 UNC

Height (in)

17.50

Housing material

Cast iron

HP Range

1 to 1-1/2 (< 2)

Input Bore (C Face)

0.625

Input Diameter (in)

1.25

Input Flange

56C

Input HP

1.585

Input HP @ 1750 RPM

1.76

Input RPM

1170

Input Style

3-Piece Coupled

Keyway

3/16 X 3/32

Length (in)

40.00

Max OHL (Output Shaft)

3740

Max Thrust Load (Output Shaft)

2533

Model Code

BM842

Motor Frame Size

56

Mounting Style

Base

No. of Gear Reductions

Single

Output

Right

Output Diameter (in)

1.875

Output HP

1.257

Output Key

1/2 X 3.06

Output RPM

21

Output Shaft Assembly Code

R

Output Shaft Direction

Right

Output Shaft Orientation

R

Output Style

R

Output Torque

3620

Output Torque (lb-in)

4519

Output Torque Range

2500 to 5000 in lbs

Output type

Solid Shaft

Overhung Load

3740

Paint/Coating

Blue

Product Line

GR Series - Ironman Worm Gear Reducers

Product Type

Right Angle

Ratio

80 to 1

Ratio Range

80-1

Reducer

Worm - Right Angle

Reducer Style

Worm - Right Angle

Reducer Type

Single

Series

GR Series - Ironman Worm Gear Reducers

Series Code

GR

Series Style

GR-BM-R

Series Type

Cast Iron 800 Worm Gear Reducers

Service Factor

1

Shaft Seal Material

Viton

Size

56C

TAP Depth

1

Thrust Rating - output shaft

2533

Width (in)

37.00