Gear heads

Nylon Cutting Head Type

B-1

Type name

Diameter of operating pole

Form of transmission shaft 

Number of bearings

Weight

Cutter blade mounting

Usable engine displacement

B-1

φ24

□5.4

spline 6×10×0.5

spline 7×7×0.75

4

368g

M8 Left Hand Thread Nat

~20cc

B-2

Type name

Diameter of operating pole

Form of transmission shaft 

Number of bearings

Weight

Cutter blade mounting

Usable engine displacement

B-2

φ25

□5.4

spline 6×10×0.5

spline 7×7×0.75

4

390g

M10 Left Hand Thread Nat

~20cc

B-3

Type name

Diameter of operating pole

Form of transmission shaft 

Number of bearings

Weight

Cutter blade mounting

Usable engine displacement

B-3

φ25

□5.4

spline 6×10×0.5

spline 7×7×0.75

4

490g

M10 Left Hand Thread Nat

~20cc

B-4

Type name

Diameter of operating pole

Form of transmission shaft 

Number of bearings

Weight

Cutter blade mounting

Usable engine displacement

B-4

φ26

□5.4

spline 6×10×0.5

spline 7×7×0.75

4

393g

M10 Left Hand Thread Nat

~20cc

B-5

Type name

Diameter of operating pole

Form of transmission shaft 

Number of bearings

Weight

Cutter blade mounting

Usable engine displacement

B-5

φ26

□5.4

spline 6×10×0.5

spline 7×7×0.75

spline 8×9×0.75

3

350g

M10 Left Hand Thread Nat

~30cc

B-6

Type name

Diameter of operating pole

Form of transmission shaft 

Number of bearings

Weight

Cutter blade mounting

Usable engine displacement

B-6

φ26

□5.4

spline 6×10×0.5

spline 7×7×0.75

4

450g

M10 Left Hand Thread Nat

~30cc

B-7

Type name

Diameter of operating pole

Form of transmission shaft 

Number of bearings

Weight

Cutter blade mounting

Usable engine displacement

B-7

φ28

□5.4

spline 6×10×0.5

spline 7×7×0.75

spline 8×9×0.75

5

900g

M10 Left Hand Thread Nat

~40cc