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Agricultural Pto Gearbox

Agricultural Pto Gearbox

PTO Speed Changer For Farm Tractors A new pto speed changer, which mounts on the tractor pto shaft, lets you change your tractor's pto speed to match implement needs. The Hub City model 390 is a heavy-duty attachment that converts pto speed from 540 rpm to 1,000, or from 1,000 or 800 rpm to...

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PTO Speed Changer For Farm Tractors

A new pto speed changer, which mounts on the tractor pto shaft, lets you change your tractor's pto speed to match implement needs. The Hub City model 390 is a heavy-duty attachment that converts pto speed from 540 rpm to 1,000, or from 1,000 or 800 rpm to 540.

Purpose of the speed changer is to allow any tractor to power any implement in its horsepower range, regardless of normal pto speed ratings.


Newly designed gears allow the model 390 to handle up to 125 hp. EPT notes that five options in the model 390 use either a 1.89:1, 1.48:1 or 1:1.89 gear ratio to reduce or increase the speed. Pto shafts with 6, 20, or 21 splines and 13/8 or 1 3/4 in. dia. shafts can be accommodated.

The 800 rpm, 1.48:1 option permits energy savings when a high hp., 1,000 rpm tractor is needed to run alow speed, 540 rpm implement, such as a grain elevator, stationary pump or generator. The tractor can be idled back to 800 rpms to save fuel and the speed reducer used to convert it down to 540 rpms.

Cost ranges from $808 to $845 for the five size and speed options. A safety shield is standard.


EPT has over 25 different front PTO gearboxes available that are all tailored to fit your specific tractor model, for maximum strength, durability and exact fitment. We never have to compromise like other companies do, there is always a PTO gearbox available that suits the exact need. Our front PTO’s are designed according to international standards for front mounted equipment. Depending on tractor size and application, we have the following front PTO rotation and shaft options available:

  • 540 rpm Clockwise, 6 spline output shaft (1 3/8″)

  • 1000 rpm Counter Clockwise, 6 spline output shaft (1 3/8″)

  • 1000 rpm Counter Clockwise, 21 spline output shaft (1 3/8″)

  • 1000 rpm Clockwise, 21 spline output shaft (1 3/8″)

  • 1000 rpm Clockwise, 20 spline output shaft (1 3/4″)

  • 1000 rpm Counter Clockwise, 20 spline output shaft (1 3/4″)

1

gearboxes

GEAR RATIO

INPUT RPM

OUTPUT RPM

INP.POWER HP

INP.POWER KW

OUT.TORQ.Nm GEAR SPECIFICATION WEIGHT LUBRICATING OIL

1: 1.90

540

1026

55

41

140 Kg 21 TYPE QUANTITY 1

1: 2.50

540

1350

52

39

Kg 21 SAE.90EP

1.3

1: 3

540

1620

50

37

Kg 21

1: 5.3

540

2862

27

20

Kg 21

1.9: 1

540

284

38

28

Kg 21

2.5: 1

540

216

33

25

Kg 21

3: 1

540

180

28

21

Kg 21

5.3: 1

540

102

14

10.5

Kg 21
Kg 21

china reducers



GEAR RATIO

INPUT RPM

OUTPUT RPM

INP. POWER HP

INP. POWER KW

OUT.TORQ.Nm GEAR SPECIFICATION WEIGHT LUBRICATING OIL
1: 1.35 540 729

15

11

140 TYPE QUANTITY 1
SAE.90EP



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