High Quality Chainsaw Bars Husqvarna Toys

What's on your bench?

Jon1212

Birch! Please.....
Local time
9:21 PM
User ID
315
Joined
Dec 29, 2015
Messages
6,207
Reaction score
35,707
Location
Utah, unfortunately.....

StephK87

Pinnacle OPE Member
Local time
5:21 AM
User ID
921
Joined
Feb 21, 2016
Messages
378
Reaction score
4,363
Location
Germany
Country flag
Just another 572xp (390xp was for size comparison), now I'm waiting for another MS462 for stock/ported battle. [emoji16]
d5ecfadcf17ccdf5e22ee046b9d25e8e.jpg
4115e11dba730ac2ef076c317f0dcc88.jpg
15f617673fdf4aa28af1e600fdc1d916.jpg
 

Sty57

Mastermind Approved!
Local time
10:21 PM
User ID
427
Joined
Jan 6, 2016
Messages
6,883
Reaction score
45,738
Location
Land of Cheese & Beer
Good way to bend or break a crank, ask how i know
I can see where it could happen.
But I just rev it up enough to engage the clutch. Then as the chain is spinning down I trip the break.
I can't see how that would be much different than running the saw and the brake trips on it's own.
 

Sty57

Mastermind Approved!
Local time
10:21 PM
User ID
427
Joined
Jan 6, 2016
Messages
6,883
Reaction score
45,738
Location
Land of Cheese & Beer

Czed

Aluminium Member
GoldMember
Local time
11:21 PM
User ID
568
Joined
Jan 17, 2016
Messages
32,112
Reaction score
182,351
Location
Wv
Country flag
I can see where it could happen.
But I just rev it up enough to engage the clutch. Then as the chain is spinning down I trip the break.
I can't see how that would be much different than running the saw and the brake trips on it's own.
I've had a few am clutch covers
They worked fine just trying them out
Was deceiving
They would trip wfo
Suprised i never broke a crank
 

Duane(Pa)

It's the chain...
GoldMember
Local time
11:21 PM
User ID
325
Joined
Dec 30, 2015
Messages
4,681
Reaction score
23,773
Location
Centre County
Country flag
The 7 pin is diameter of 35 MM
The 8 pin is diameter of 40 MM

Let's use a 372 XT as an example. It's rated (per Husky) at 3.8 N*M of torque

The force exerted (Newtons) would be 3.8 N*M divided by the radius of the rim.

3.8 / .0175 = 217 Newtons of force exerted on the chain
3.8 / .020 = 190 Newtons of force exerted on the chain

That's a 12.4 % decrease in force exerted on the chain. However, the chain is spinning faster by about the same ratio, so it's all a balance.
I'll take the Newtons...I know where to find chain speed :hambre:
 
Top