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Topic: Trunnion

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	Trunnion Design Ball Valves
		Trunnion Design is simply the use of upper and lower supports to retain the ball under pressure.
		Named for the "trunnion" historically used to support a cannon, a ball valve trunnion essentially doubles the safety and usability of a ball valve.
		The trunnion on a three-way ball valve is a much different design, being more like a supporting ring, but provides the exact same function and inherent stability.
	www.plastomatic.com /trunnion.html (355 words)

	Artemis Project: Trunnion Pins and Scuff Plates
		Trunnion pins are devices which anchor the payload to the launcher, in this case the Space Shuttle.
		The trunnion pin is 3" in diameter and protrudes 9.5" past the scuff plate.
		The trunnion pin is usually bright polished metal and the scuff plate is anodized a bright orangish yellow.
	www.asi.org /adb/04/03/07/trunnion-notes.html (257 words)

	Trunnion and bracket for rollers - Patent 4729418 (Site not responding. Last check: )
		A bracket and trunnion means hardware pair in accordance with claim 4 in which the axis of symmetry of said bracket intersects the axis of symmetry of said roller when said lug is engaged by either of said slots.
		Mounting to the trunnion bracket is then achieved by lowering the second, trunnion end of the roller, until a feature on that end of the roller engages a mating feature on the trunnion bracket.
		Having the trunnion rotatably mounted within a housing helps to insure a good bearing fit between the trunnion and the housing while the housing can be configured to be somewhat tolerant of variations of the size of the tubing.
	www.freepatentsonline.com /4729418.html (1928 words)

	Trunnion Design Explained (Site not responding. Last check: )
		Trunnion Design is simply the use of upper and lower supports to retain the ball under pressure.
		Named for the "trunnion" historically used to support a cannon, a ball valve trunnion essentially doubles the safety and usability of a ball valve.
		Another important benefit of the trunnion design is that it allows the True Blue Ball Valve to act as a true union: The downstream piping can be disconnected under full upstream pressure (user is responsible to ensure that downstream piping is drained of liquid and that valve is indeed closed and secured to upstream piping).
	www.kthsales.com /website/vendors/POM/trunnion-design.htm (249 words)

	Tire trunnion grinding
		Sometimes, the trunnions and tires are simply too worn to do their job or the tires are scalloped so badly that the drum vibration is excessive.
		Instead of shimming the drum frame as recommended, they moved the trunnions closer together which raised the burner end of the drum and caused the tire to ride at a bit of an angle to the trunnions thereby preventing full surface contact.
		It is strongly recommended that the trunnion bearings be thoroughly greased after the grinding operations to flush out any grindings around the bearing seals that could be drawn inside the bearing as it cools down and pulls in expelled grease.
	hotplantconsulting.com /articleeight.html (1114 words)

	WPS:AMC:Trunnion front suspension
		Trunnions work well; even poorly maintained they last nearly forever (mine are 40 years old and still in fine condition) but are subtle and tricky to install right, and the information is simply not in the technical service manual.
		The trunnion consists of a cast steel center cross with bronze bushing, two doubly-threaded cap nuts, a thrust bearing and assorted hardware; the steering knuckle is shown at the top of the photo.
		The trunnion would work just fine, in the normal case, if the caps simply threaded into each A-arm half and the trunnion had plain bearings, but would catastrophically disassemble should upper or lower arm components fail, such as in an accident (or worse, be pre-stressed into later unexpected failure by a an earlier survived accident).
	www.wps.com /AMC/Front-suspension (1410 words)

	Trunnion Tables
		Trunnion Tables - Dual-axis trunnion rotary solutions in
		160 mm (6.3") Tilting 2-Axis Trunnion Rotary Table, true 4th and 5th axis; requires Haas mill with 4th and 5th axis option.
		210 mm (8.27") Tilting 2-Axis Trunnion Rotary Table, true 4th and 5th axis; requires Haas mill with 4th and 5th axis option
	www.allendalemachinery.com /trunnion.html (0 words)

	Feature - Trunnion Machines In Transition
		CNC may bring trunnion systems to a generation of contract manufacturers unfamiliar with this type of machine.
		The original trunnion is the pin about which a cannon pivots up and down.
		The difference is that the trunnion machine uses all of these tools at once and makes all of these moves simultaneously.
	www.mmsonline.com /articles/020203.html (1688 words)

	Artemis Project: Trunnion Pin and Scuff Plate Positioning
		One option is to put trunnion pins and scuff plates at each end of the service module and one in the middle; and then one at the front of the crew module where it normally is on the
		For the Lunar Habitat, the 3-module configuration, there would be a trunnion pin at the back of the third module, as well.
		Those are trunnion pins and scuff plates sticking out on the diagram.
	www.asi.org /adb/04/03/07/trunnion-position.html (237 words)

	Happy Holidays From The Totally Triumph Network! - Front trunnion and vertical suspension link failure..
		The trunnion itself was rigid on its bolt with absolutly no available movement to allow it to rotate as the wheel moves up and down.
		When the trunnion is seized onto its bolt and the bolt is tight in the end of the wishbone the trunnion cannot rotate and stays rigid with the wishbone.
		My experiences lead me to believe that advice on trunnion and front suspension maintenance probably needs to be updated and to direct more attention to the condition of the trunnion bushes and the thread on the vertical link as well as lubricating inside the trunnion itself.
	www.totallytriumph.net /dcforum/DCForumID59/14.shtml (898 words)

	Eriez Offers Free Trunnion Magnet Literature (Site not responding. Last check: )
		Positioned at the discharge end of the mill, the Trunnion Magnet consists of an arc of permanent magnets surrounding almost half of a blind trunnion extension.
		As the trunnion rotates, the powerful magnetic circuit aggressively attracts and holds the steel balls to the inner surface of the trunnion.
		The steel balls are carried to the top of the trunnion where the magnetic arc terminates, thereby releasing the balls, which subsequently fall into a hopper and chute.
	www.plasticsnet.com /content/news/article.asp?docid={EF5E0861-0D80-4685-9DAE-D6F4D22DF938} (207 words)

	From Soup to Nuts Part IV: Building an AK-47 Receiver : Installing the Front, Rear Trunnion, and Trigger Guard - ... (Site not responding. Last check: )
		Once the barrel is clear of the trunnion you may want to polish the outside of the breech area to remove any gouge marks.
		The rear trunnion has two long rivets (folding stock will have several types) that are made of steel that is tempered softer in the center portion.
		Other than mounting the barrel to the front trunnion and trimming the excess metal on the top rails, you are close to having a functioning AKM rifle.
	www.surplusrifle.com /shooting2005/souptonuts4/index.asp (2382 words)

	Hydromat - Precision Rotary Transfer Machines - Products - Trunnion (Site not responding. Last check: )
		The Hydromat Trunnion Transfer Machines are well suited for shafts and irregularly extruded bar stock parts as well as small casting applications.
		Since the workpiece is stationary in the chuck jaws, the table indexes the workpiece to each machining unit which performs many types of operations (i.e., drilling, cross drilling, boring, turning, milling, external and internal recessing, threading, tapping, broaching, etc).
		The Trunnion Machines are well suited for the manufacturing of small casting applications, irregularly-extruded bar stock parts and shafts from 1/2" to 12" in length.
	www.hydromat.com /hydromat_25/machines/trunnion.html (112 words)

	Acoustic emission monitoring of the trunnion shafts
		According to information furnished by Oregon DOT, the trunnion shafts on the east bridge were modified during the 1960 rehabilitation to allow application of tapered roller bearings in place of the plain sleeve bearings that were originally installed.
		The measured length of the trunnion shaft was 67 inches.
		This AE is probably being generated by slippage of the sheave on the trunnion shaft.
	www.iti.northwestern.edu /pubs/tr6.html (1949 words)

	VOSTA LMG - Trunnion bend
		The trunnion is designed for heavy duty operation in any type of soil anywhere in the world.
		The function of the trunnion is to bring the side suction pipe in its dredging position.
		The standard range of the trunnion bends is DN 600 up to DN 1000.
	www.vostalmg.com /viewpage/166 (79 words)

	Valve engineering - What does trunnion mean?
		Another important benefit of the trunnion design is that it allows the Ball Valve to act as a true union: The downstream piping can be disconnected under full upstream pressure (user is responsible to ensure that downstream piping is drained of liquid and that valve is indeed closed and secured to upstream piping).
		On the plus side, trunnion mounted balls have more assembled pre-load between the ball and seats, thus better low pressure sealing capabilities than floating ball designs.
		Trunnion ball valves are better suited for larger sizes and higher pressures because the seat surface area exposed to the line pressure drop (amount of pressure assist) can be designed to whatever you want.
	www.eng-tips.com /viewthread.cfm?qid=22671 (535 words)

	Full-Scale Testing of Procedures for Assembling Trunnion-Hub-Girder in Bascule Bridges (Site not responding. Last check: )
		One assembly procedure, AP#1, cools the trunnion for a shrink fit into the hub, followed by cooling of the trunnion-hub assembly to shrink fit it into the girder.
		Using AP#1, development of cracks on the hub was observed in one THG assembly, and, in yet another assembly, the trunnion got stuck in the hub before full insertion could take place.
		In an alternative assembly procedure, AP#2, where the hub is shrink fitted into the girder first, followed by cooling the trunnion and shrink fitting it into the hub-girder assembly, the allowable crack length was determined to be double the allowable crack length of AP#1.
	www.pubs.asce.org /WWWdisplay.cgi?0302444 (242 words)

	Trunnion and Spring Servicing
		A conical extension, integral with the trunnion, holds the bottom of the coil spring.
		On the side of the trunnion is a horizontal bore, through which a bolt connects the outboard ends of the upper control arms.
		Tilt trunnion away from upper control arm, being careful not to damage brake hose, and lift trunnion off knuckle shaft.
	www.skidmore.edu /~pdwyer/amc/trunnion.htm (2106 words)

	Nobody Knows, concerning Louise Trunnion
		George Willard found Louise Trunnion in the kitchen of her father's house.
		Louise Trunnion came out across the potato patch holding the dish cloth in her hand.
		When Louise Trunnion came out of the front door of her house she still wore the gingham dress in which she had been washing dishes.
	www.devpsy.org /nonscience/sherwoodanderson/nobodyknowslouisetrunnion.html (1141 words)

	SDG 8.5 Machinery Systems (Site not responding. Last check: )
		Extend the trunnion at least 5/8-inch beyond the end of the trunnion bearings.
		Provide a 2-inch long counter bore concentric with the trunnion journals at each of the hollow trunnion ends.
		Deflections of the trunnion with load must be calculated and compared with these clearances to insure the journals do not bottom out and bind, particularly on rehabilitations and Hopkins frame bridges.
	www.dot.state.fl.us /Structures/StructuresManual/2004January/DesignGuidelines/SDG_8.5_Machinery_Systems.htm (2865 words)

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