The installation of Lee Betaplugs, whether performed manually or automatically, is very easy and economical. First, the preassembled Betaplug is inserted into the tapered installation hole narrow end first. The pin is then driven into the plug using the recommended Lee Company Installation/Staking Tool until the pin is below flush while staking over the back edge of the plug.
The Short Betaplug pin should be installed from 0.50 to 0.80mm (0.020" to 0.031") below flush.
The Short Betaplug has been qualified to work in generously toleranced installation holes. The taper of the hole can range anywhere from 4°-5°, giving the designer flexibility in satisfying specific application requirements. Tapered Reamers are available for each size Short Betaplug. See the tooling table for applicable part numbers.
The Lee Company recommends that the Short Betaplug be installed flush or below the surface of the housing to ensure optimum performance. The use of coatings or surface treatments in the area of the installation hole where the Short Betaplug is to be installed is not recommended.
|BETAPLUG SIZE||TOP GAGE DIA., D1||BOTTOM GAGE DIA.,
|MAX. PASSAGE DIA.,
|MIN. OPENING, D4||MIN. WALL THICKNESS,
* Depth of tapered hole (L3) from depth of minimum diameter (D4).
All dimensions are in millimeters.
Lee Installation/Staking Tools are available for each Betaplug and part numbers are listed in the tooling table.
The tool contains a centering feature which ensures proper tool alignment during installation. All Betaplug pins are coated with a wax that produces a thin, solid lubricating film that reduces friction, allowing the pin to be driven to its correct position relative to the plug. Do not clean prior to installation.
The installation force required to drive the pin into the Betaplug is a function of boss material, installation hole and boss geometry, and plug size. A boss made of a stronger material or having a larger wall thickness will require a greater installation force than one made of a weaker material or having thinner walls. Typical installation forces for A380 die-cast aluminum are listed for each Betaplug. See the tooling table below.
|7||PLBT0070901S||PLBT0700012S||PLBT0700014S||4.9 (1,100 lbf)|
|9||PLBT0090901S||PLBT0900012S||PLBT0900014S||4.9 (1,100 lbf)|
|11||PLBT0110901S||PLBT1100012S||PLBT1100014S||6.2 (1,400 lbf)|
|13||PLBT0130901S||PLBT1300012S||PLBT1300014S||6.2 (1,400 lbf)|
|16||PLBT0160901S||PLBT1600012S||PLBT1600014S||6.5 (1,460 lbf)|