About: Pitman arm

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A Pitman arm is a shaft that translates rotary or angular movement into linear movement, or vice versa. Pitman arms are commonly found in water pumping windmills, automotive steering systems, and sewing machines. In windmills, the Pitman arm connects the driving gear to the pumping arm. It translates the rotary power from the wind blades to the up-and-down motion of the pumping arm. * v * t * e

Attributes	Values
rdf:type	military unit
rdfs:label	Pitman arm (en)
rdfs:comment	A Pitman arm is a shaft that translates rotary or angular movement into linear movement, or vice versa. Pitman arms are commonly found in water pumping windmills, automotive steering systems, and sewing machines. In windmills, the Pitman arm connects the driving gear to the pumping arm. It translates the rotary power from the wind blades to the up-and-down motion of the pumping arm. * v * t * e (en)
foaf:depiction
dcterms:subject	Automotive steering technologies
Wikipage page ID	1793967 (xsd:integer)
Wikipage revision ID	1116357018 (xsd:integer)
Link from a Wikipage to another Wikipage	Steering Idler arm Drag link Motion (physics) Ball joint Flywheel Automotive steering technologies Wheel Windmill Recirculating ball Linear Sewing machine Steering box Linkage (mechanics) dbr:Sector_shaft
sameAs	Pitman arm Pitman arm Pitman arm Pitman arm
dbp:wikiPageUsesTemplate	dbt:Unreferenced_stub dbt:Automotive-part-stub
thumbnail	wiki-commons:Special:FilePath/Project_AMX_t-Cecil'10.jpg?width=300
auto	yes (en)
date	December 2009 (en)
has abstract	A Pitman arm is a shaft that translates rotary or angular movement into linear movement, or vice versa. Pitman arms are commonly found in water pumping windmills, automotive steering systems, and sewing machines. In windmills, the Pitman arm connects the driving gear to the pumping arm. It translates the rotary power from the wind blades to the up-and-down motion of the pumping arm. In automotive or truck steering systems, the Pitman arm acts as a linkage attached to the steering box (see recirculating ball) , it converts the angular motion of the sector shaft into the linear motion needed to steer the wheels. The arm is supported by the sector shaft and supports the drag link or center link with a ball joint. It transmits the motion it receives from the steering box into the drag (or center) link, causing it to move left or right to turn the wheels in the appropriate direction. The idler arm is attached between the opposite side of the center link from the Pitman arm and the vehicle's frame to hold the center or drag link at the proper height. "Pitman arm" can also refer to a component in a treadle sewing machine that connects the foot pedal to the crankshaft of the lower flywheel. In this case, the Pitman arm works similarly to a connecting rod in an engine in which the up and down force applied at one end of the arm translates to pushing and pulling alternately on the eccentric part of the crankshaft to achieve continuous rotation of the crankshaft and flywheel. The bearing connecting the Pitman arm to the crankshaft is known as the Pitman bearing. Early Pitman arms (up until around 1905) were made of wood, whereas later Pitman arms were made of steel. Wooden Pitman arms usually employed a simple wooden bushing around a steel shaft at both ends. The later steel Pitman arms usually used a ball joint at the lower pivot point and a ball bearing for the Pitman bearing at the top. * v * t * e (en)
gold:hypernym	Component
prov:wasDerivedFrom	wikipedia-en:Pitman_arm?oldid=1116357018&ns=0
page length (characters) of wiki page	2280 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Pitman_arm
is Link from a Wikipage to another Wikipage of	List of auto parts Scroll saw Connecting rod Punch press Steering February 1966 Idler arm Pitman Drag link Packard Four Rack and pinion Recirculating ball Sawmill Steering kickback Saw pit
is Wikipage disambiguates of	Pitman
is foaf:primaryTopic of	wikipedia-en:Pitman_arm

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