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If the groove is placed off center, then half of the bearing will tend to.

Multistart ID thread with a high lead, followed by a flexhone to deburr and create a crosshatch pattern?

Jul 29, Oil Grooves for Bronze Bushings. Oil Hole: A single oil hole without any grooving is commonly used in short bearings with an L/D ratio of or less.

Oil will flow axially unaided to each side of the oil inlet hole by as much as ½”. The oil hole should be centrally located and in the unloaded area to ensure that oil is distributed equally Estimated Reading Time: 3 mins.

Grooved Cast Bronze Bushings. We are specialists in cutting lubrication grooves in virtually any pattern. Examples include our"Spira-Lube" Groove and"National 11" Groove. Other common groove patterns available are figure eight, double figure eight, loop, double loop, circular, wick or straight. Any of these grooves can be contained within the. Nov 19, The bearings have been in use over 20 years and are stump grinding avon park, 1887 Wilmington MA fine.

If this is an oil bath situation, and you say it is, then I would chuck up the bushing softly to start. Advance a boring bar into the bushing about half way and turn a single internal groove. Remove the bushing and cross drill through the groove to allow oil to enter. Oil & Grease Groove Bronze Bushings Our Cast Bronze Bushings are machined from continuous cast C (SAE ) bronze for superior quality and performance.

The continuous casting process assures a uniform bronze structure throughout the bearing, free from porosity and hard particle inclusions commonly found in other cast processes. Mar 06, Oil grooves in a bronze bushing. Likes: 0. Results 1 to 13 of 13 Thread: Oil grooves in a bronze bushing. Thread Tools. Show Printable Version;AM #1.

rjibosh. View Profile View Forum Posts Hot Rolled Join Date Jul Location Los Angeles Posts Post Thanks / Like Likes (Given). Sep 30, Set lathe for 50 to 60 RPM's. Position boring bar for the farthest oil groove. Touch tool to part and advance the tool for the depth that you want the oil groove with the lathe turning.

When the tool quits cutting feed the tool to the second end stop with a fast travel and when you reach that stop let the lathe finish that end groove. 1) Oil Impregnated SAE Sintered Bronze 2) Cast Bronze (CB) Machined, SAE Bearing Bronze 3) Graphite Plugged Self Lubricating Cast Bronze 4) Driplane Dry Lubricated Bronze 5) Steel Backed PTFE Lined Bronze 6) BB Oil Impregnated Iron-Copper 7) Eco USDA Approved Oil Impregnated Bronze 8) Extra Oil & PTFE Impregnated Bronze 9.

Custom & Special Grooving Patterns. This shop is appropriately equipped with machinery for drilling, countersink and counter boring, thread cutting and grooving all standard or special oil groove configurations.

Self lubricated and graphited bearings either plugged or grooved are available. Jul 14, The machine is a combination of a lathe and a shaper.

The spindle holds and turns the bearing while the carriage holds the cutting tool and moves it back and forth in the bearing bore while it cuts the groove. My friend says he now cheats when he needs to cut a groove. He rigged up a ball-burr in a die grinder to make the job go faster. Jan 18, The bushing is Bronze, /4" ID. by 2" OD. /2" long. I don't see any real advantage to cutting a spiral groove versus a straight groove. The purpose of the groove is to more quickly distribute the lubricant along the length of the bearing surface; capillary action and the small clearance between pin and bearing will take care of.