Parker 892 Series, Owner'S Manual

Bulletin HY25-1890-M1/US

Owner’s Manual

10-Bolt Extended Shaft PTOs

Parker Hannifin Corporation

Chelsea Products Division

Olive Branch, MS 38654  USA

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General Information

Function of Auxiliary Power Shafts

An auxiliary power shaft transmits torque from the power source to the driven accessory. The shaft must 
be capable of transmitting the maximum torque and RPM required of the accessory, plus any shock loads 
that develop.

An auxiliary power shaft operates through constantly relative angles between the power source and the 
driven accessory. Therefore, the length of the auxiliary power shaft must be capable of changing while 
transmitting torque. This length change, commonly called “slip movement”, is caused by movement of the 
powertrain due to torque reactions and chassis deflections.

Joint operating angles are very important in an auxiliary power shaft application. In many cases, the 
longevity of a joint is dependent on the operating angles. (See chart below)

This information is limited to 1000 through 1310 Series applications. For applications requiring a series 
larger than 1310, contact your local Chelsea distributor.

Determining Shaft Type

1)  Solid or tubular?

a)   In applications requiring more than 1000 RPM or where the application necessitates a highly  bal-

anced auxiliary power shaft, a tubular shaft should be used.

b)   Spicer’s solid shafting auxiliary power joints are designed for 1000 or less RPM intermittent 

service such as:

  Driving small hydraulic pumps

  Driving 

winches

    Driving low speed product pumps

2) Joint Series should be determined using the chart on the following page.

SPICeR

®

 UNIVeRSAL JOINT OPeRATING ANGLeS

Prop. Shaft RPM 

Max. Normal 

Operating Angle

Prop. Shaft RPM 

Max. Normal 

Operating Angle

3000

5° 50'

1500

11° 30'

2500

7° 00'

1000

11° 30'

2000

8° 40'

500

11° 30'

Above based on angular acceleration of 100 RAD/SEC

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