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Maximum stability in demanding applications The standard AT-cut, 1 in. (25.4 mm) diameter crystal, pioneered by INFICON, is used primarily in research applications with the INFICON RQCM (Research Quartz Crystal Microbalance). These research crystals are designed for use with INFICON rugged, easy to use crystal holders and are used for in-situ monitoring of deposited films or liquids. Geometry AT-cut quartz has superior mechanical and piezoelectric properties. The 1 in. (25.4 mm) diameter allows optimal distance between the active area of the crystal and the mounting o-ring. This improves the overall stability of the crystal by reducing the frequency changes due to mounting stress. Finish INFICON 1 in. (25.4 mm) research crystals are available with either an unpolished or polished finish. Polished crystals allow for a good correlation between theory and measurement during liquid immersion experiments. Electrode Material INFICON 1 in. (25.4 mm) research crystals are available... Frequency Range:4.976 - 5.020 MHz Resistance:~10 Ohms Crystal Diameter:1 in. (25.4mm) Crystal Contour:Plano-Plano Crystal Orientation:AT-Cut, for frequency stability over temperature Compatibility:INFICON/Maxtek liquid probes and crystal holders Front Electrode Diameter:0.5 in. (12.7 mm) Packaging:Individually packaged/sold Crystal Thickness:0.013 in. (333µm) Surface Roughness:50 Å(polished)

igubal® spherical balls W..M/I Standard spherical ball - dimensional series K and E in metric and inch dimensions igubal® spherical balls W..M/I igubal® spherical balls R...M Low cost spherical ball - dimensional series K and E in metric dimensions igubal® spherical balls R...M igubal® spherical balls X...M Spherical ball for high temperatures - dimensional series K and E in metric dimensions igubal® spherical balls X...M igubal® spherical balls J...M, mm Spherical ball for low humidity absorption - dimensional series K and E in metric dimensions igubal® spherical balls J...M, mm igubal® spherical balls J...M, large dimensions, mm Spherical ball for low humidity absorption - dimensional series K in metric dimensions igubal® spherical balls J...M, large dimensions, mm igubal® spherical balls JKM-GT split, mm Splitted spherical ball for low moisture absorption - Dimensional series K in metric dimensions igubal® spherical balls JKM-GT split, mm igubal® spherical balls UWEM Spherical ball for underwater applications - dimensional series E in metric dimensions igubal® spherical balls UWEM igubal® clearance-free balls J4VEM, mm Clearance-free spherical balls through camber, dimensional series E igubal® clearance-free balls J4VEM, mm igubal® spherical balls J4...M, mm Low priced spherical ball - dimensional series K and E in metric dimensions igubal® spherical balls J4...M, mm igubal®-spherical balls RN248..M, mm Detectable spherical ball - dimensional series K and E in metric dimensions igubal®-spherical balls RN248..M, mm Every iglidur® material possesses a series of special properties which account for its suitability for certain applications and requirements. Currently we offer you spherical balls made of iglidur® materials W300 (standard), J, J4, R, UW and X. igubal® spherical bearings application examples Special properties: maintenance-free dry operation Corrosion resistant High compressive strength High elasticity Very low weight Various materials Spherical balls - material properties iglidur® W300 (Standard) – very wear-resistant material iglidur® R cost-efficient and low coefficients of friction iglidur® X resistant to temperature and chemicals iglidur® J low coefficients of friction and low humidity absorption iglidur® UW suited for underwater applications Tolerances Maintenance-free igubal® spherical balls are designed with a tolerance in the inner diameter according to E10. The shaft should have a tolerance between h6 and h9. When to use it? When maintenance-free materials are required When components of the dimensional series E and K should be used When different iglidur® materials should be tested When high compressive strength is required When high elasticity is required When not to use? When temperatures above +250°C prevail When dimensions over 50 mm are needed When rotation speeds in excess of 0,5 m/s should be implemented igubal® spherical balls W..M/I Standard spherical ball - dimensional series K and E in metric and inch dimensions igubal® spherical balls W..M/I igubal® spherical balls R...M Low cost spherical ball - dimensional series K and E in metric dimensions igubal® spherical balls R...M igubal® spherical balls X...M Spherical ball for high temperatures - dimensional series K and E in metric dimensions igubal® spherical balls X...M igubal® spherical balls J...M, mm Spherical ball for low humidity absorption - dimensional series K and E in metric dimensions igubal® spherical balls J...M, mm igubal® spherical balls J...M, large dimensions, mm Spherical ball for low humidity absorption - dimensional series K in metric dimensions igubal® spherical balls J...M, large dimensions, mm igubal® spherical balls JKM-GT split, mm Splitted spherical ball for low moisture absorption - Dimensional series K in metric dimensions igubal® spherical balls JKM-GT split, mm igubal® spherical balls UWEM Spherical ball for underwater applications - dimensional series E in metric dimensions igubal® spherical balls UWEM igubal® clearance-free balls J4VEM, mm Clearance-free spherical balls through camber, dimensional series E igubal® clearance-free balls J4VEM, mm igubal® spherical balls J4...M, mm Low priced spherical ball - dimensional series K and E in metric dimensions igubal® spherical balls J4...M, mm igubal®-spherical balls RN248..M, mm Detectable spherical ball - dimensional series K and E in metric dimensions igubal®-spherical balls RN248..M, mm