1-3/8 in. 6-Spline Input 1:1.47 Ratio Rotary Cutter Gearbox

Description

Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.

Features a 1-3/8 in. 6-spline input shaft and a 1-1/2 in. 12-spline output shaft for standard fitment. Operates at a maximum of 540 RPM with a 1:1.47 gear ratio and bevel gear design for efficient torque conversion. Designed for 4, 5, and 6 ft. rotary cutters with 35-45 HP compatibility. Mounting features 4 holes with a 5/8 in. size on a 6-3/4 in. bolt pattern.

**Installation Tip:** After installing the pan and blades onto the gearbox, ensure the blades when turned back toward the gearbox shaft do not hit the shaft or nut but clear them before using the rotary cutter.

Manufacturer Part Number: RW-300-6S.

Dimension

Bolt Pattern:

6-3/4 in.

Hole Size:

5/8 in.

Input Shaft Length:

3-7/8 in.

Output Shaft Length:

4-1/2 in.

Specification

Bevel:

Yes

Brand:

Grizzly

Capacity:

40 HP

Description:

Mounting Pattern: (4) 3/4 in. Holes - 8 in. Pattern - 5.5 in. Center

Features:

Ductile iron housing for superior strength and long lasting durability
6-spline input shaft for standard PTO fitment
12-spline output shaft for reliable blade hub mounting
1:1.47 gear ratio with bevel gear design for efficient torque conversion
Designed for 4, 5, and 6 ft. rotary cutters with 35-45 HP compatibility

Hole Count:

4 (Mounting Holes)

Hub:

Blade Hub Compatible

Input:

1-3/8 in.

Input Spline Count:

Material:

Ductile Iron (Housing)

Output:

1-1/2 in.

Output Spline Count:

Ratio:

1:1.47

Spin Direction:

Clockwise / Counter Clockwise

Style:

Rotary Cutter Gearbox

Type:

Gearbox

Used On:

4 ft., 5 ft., 6 ft. Rotary Cutters

1-3/8 in. 6-Spline Input 1:1.47 Ratio Rotary Cutter Gearbox