Difference Between Driveline Cat. 2 & Cat 3

   / Difference Between Driveline Cat. 2 & Cat 3 #1  

newholland4me

Bronze Member
Joined
Nov 18, 2007
Messages
51
Ok, so I am doing my research and according to NH TZ25DA booklet the rotary mower recommended is a 48" with a Category II driveline. I have found a good deal on a 48" mower with the correct hitch category, but with a driveline category III. What is the difference between the categories?

TIA
 
   / Difference Between Driveline Cat. 2 & Cat 3 #2  
Ok, so I am doing my research and according to NH TZ25DA booklet the rotary mower recommended is a 48" with a Category II driveline. I have found a good deal on a 48" mower with the correct hitch category, but with a driveline category III. What is the difference between the categories?

TIA

By drive line are you talking about the PTO shaft? Cat II to Cat III 3 point hitch is higher horse power tractors and larger hitch pins. PTO shaft I have no idea.
 
   / Difference Between Driveline Cat. 2 & Cat 3
  • Thread Starter
#3  
Well, I am not sure. Here is copy of specs. for mower that is recommended for my TZ25DA:
Hitch category: I
Cutting width: 48
Driveline category: II
Gear box rating: 30
Drive requiremt: 540 rpm PTO

Sorry for being so :confused: but I am a girl with limited understanding of all the mechanical info.

Hope this helps. The one mower I found has all these specs., but driveline category III. Hence, my question.

Thanks for your help. :)
 
   / Difference Between Driveline Cat. 2 & Cat 3 #4  
Cat 3 shaft has a high horsepower rating. It will work fine.
 
   / Difference Between Driveline Cat. 2 & Cat 3 #6  
Typically when referring to cat I, II, III etc on d-lines designates it as a metric d-line (bondioli, pavesi, etc). The cat can normally be figured out by measuring the bearing cap diameter. cat I is 7/8, cat II is 15/16, cat III is 1 1/16, and so forth (or the metric equivelent). These will mostly be the tri lobe style d-lines, while the oval metric d-lines are an altogether different cat designation. On the sae square style d-lines they are cat 6, 12, 14, etc. cat 6 is 31/32, cat 12 is 1 1/16, cat 14 is 1 1/8 and so forth. Like the previous post the higher the # the larger the bearing cross so cat III is just fine for the application.
 

Tractor & Equipment Auctions

2023 Cub Cadet LX46 (A47307)
2023 Cub Cadet...
1994 PETERBILT 379 SLEEPER (A45678)
1994 PETERBILT 379...
GOLF CART CLUB CAR (A46684)
GOLF CART CLUB CAR...
2019 Ford Fusion Sedan (A46684)
2019 Ford Fusion...
2017 Dodge Grand Caravan (A46684)
2017 Dodge Grand...
2025 Kivel 48in Forks and Frame Skid Steer Attachment (A46683)
2025 Kivel 48in...
 
Top