Parker 221 Series, Owner'S Manual, Page: 10 / 56

Bulletin HY25-1135-M1/US
Owner’s Manual
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
6
General Information
Owner’s Manual
6 and 8-Bolt PTOs
Spicer
®
Universal Joint Engineering Data
Maximum Operating Speed * By Tube Size, Solid Shaft Size, and Length
*(For speed below 500 RPM or over 2500 RPM, contact your Chelsea Distributor)
Tubing Dia. & Wall Thickness
Joint & Shaft
(W=Welded S=Seamless)
Max. Installed Length in Inches for Given RPM
Centerline to Centerline of Joints for a Two Joint Assembly
or
Centerline of Joint to Centerline of Center Bearing for a Joint & Shaft
RPM - Revolutions per Minute
500 1000 1500 2000 2500
1.750" x .065" W 117" 82" 67" 58" 52"
1.250" x .095" S 91" 64" 52" 45" 40"
2.500" x .083" W 122" 87" 70" 62" 55"
3.000" x .083" W - - - 85" 76"
Solid Shaft
Diameter
.750" 60" 42" 35" 30" 27"
.812" 62" 44" 36" 31" 28"
.875" 65" 46" 37" 32" 29"
1.000" 69" 49" 40" 35" 31"
1.250" 77" 55" 45" 39" 35"
Joint Series 1000 1100 1280 1310
Torque Rating
Automotive (Gas or Diesel Engine) lbs-ft Continuous 50 54 95 130
Tubing
Diameter 1.750" 1.250" 2.500" 3.00"
Wall Thickness .065" .095" .083" .083'
W = Welded S = Seamless W S W W
Flange Diameter (Swing Diameter)
Rectangular Type 3.500" 3.500" 3.875" 3.875"
Bolt Holes - Flange Yoke
Circle 2.750" 2.750" 3.125" 3.125"
Diameter .312" .312" .375" .375"
Number 4 4 4 4
Male Pilot Dia. 2.250" 2.250" 2.375" 2.375"
Distance Across Lugs
Snap Ring 2.188" 2.656" 3.469" 3.469"
Construction 2.188" 2.656" 3.469" 3.469"
Bearing Diameter .938" .938" 1.062" 1.062"