Bevel-helical gear unit B4 LSS Low speed shaft For type H the heatin B4-FH-12-A

Flender/Flender Gear Units/Bevel-helical gear unit B4

what per-centage of the power is being trans-mitted through each mesh. All ofthese challenges can be resolved byapplying one simple product. The Timken Integrated Flexpin Bearing (IFB) is built around the prin-ciple of double-cantilever shaft thatextends from single walled plan-etary carrier. This construction pro-vides circumferential compliancyamong planets to insure uniformload distribution among the planets(testing shows -gamma for 7 plan-ets is close to unity for 5 to 1%of nominal load). Just as important,the single walled carrier construc-tion virtually eliminates gear tiltingfrom torsional wind up. This means,unit loading on the gears and bear-ings is decreased by virtue of usingmore planets and improving -gamma, and misalignment from tor-sional wind up is virtually eliminated. Additionally, the IFB construction is based on full integration of bear-ing races with the planet gear andsleeve, allowing radial space for thebearing rolling elements. Bearingsmay also be very precisely preloadedat the bearing factory so that thespring rate of each IFB remains con-stant permitting uniform loadingamong planets. The IFB representsstate-of-the-art technology inepicyclical gearing system design.Its compliant construction offers thegreatest opportunity for reducinggear mass and balancing reliabilityof all system components. Flexpin: made of only 5 types of pieces:1 - pin2 - cones/sleeve3 - rollers4 - cup/gear5 - adjustable rib 5 4 1Advantages of Flexpin: Flexibility permits the application of more planets to reduce unitgear contact load Increase reliability through lower, more predictable gear contactand improved contact pattern Single-wall carrier reduces axial dimension and weight of theepicyclical gearing system Short assembly times (ready to mount productDocGearGB1.qxd 2/0/0 1:0 Page 1 1A FULL RANGE OF STANDARD BEARINGS (METRIC AND INCH) Tapered roller bearings Spherical roller bearings Cylindrical roller bearings Needle bearings CUSTOMIZEDAPPLICA