windows 94 the outer face 106 includes a generally arcuate midsection region 112 flanked by generally conical surface portions 114 adjoining the latter tangentially midsection region 112 defines a maximum outer diameter do of cage 92 cage 92 has a front face 116 and a rear face 118 that define an axial cage length b cage 92 has a side cross sectional area 120 as seen in longitudinal section fig4 a bounded by conical region 114 of cage outer face 106 cylindrical region 110 of cage inner face 104 window circumferential edge 102 and front and rear faces 116 118 of cage 92 cage 92 also has a center cross sectional area 122 as seen in circumferential section fig4 b bounded by midsection region 112 of cage outer face 106 midsection region 108 of cage inner face 104 and a peripheral end surface 124 of adjacent long and short windows 96 98 continuing to refer to fig3 a thru 5 d the first pairs of tracks that include outer and inner first ball tracks 54 68 and the second pairs of tracks that include outer and an inner second ball tracks 56 70 are alternately arranged over the circumference of the respective inner and outer races 64 44 multiple webs 126 are formed between each two inner first and second ball tracks.