thin section bearing design guide hitechdivision
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the hitech solution ideal for a wide range of applications c b thin section bearings are used when bearing weight or size needs to be kept to a minimum they are used in robotics inspection equipment medical radial devices and semiconductor li lo radial d manufacturing equipment the aerospace and defense markets also often use these bearings in aircraft flight control systems helicopter rotor swash plates missiles and other navigational guidance systems d thin section at a glance · large number of small diameter balls for greater stiffness less deflection · less weight and space compared to heavier standard section parts · as size grows cross-section increases up to 1/2 at 11.000 od · conforms to roundness of shafts or housings in a thin section bearing nhbb can achieve bore-to-cross section ratios as high as 20:1 · distributing the load over a greater number of small diameter balls contributes to lower starting and running torque thin section vs traditional ball bearings thin secti
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maximize your options bccb the nhbb advantage · nhbb hitech s extensive experience in a broad range of demanding applications and precision products is critical in meeting the unique requirements of thin section bearings · we work closely with each customer to determine the best design in terms of cages shield or seal enclosures ring and ball materials and lubricants · we also have expertise meeting demands of specific applications including speeds loads life torque requirements temperature and other environmental conditions · hitech makes recommendations based around standard thin section designs with custom features as needed to deliver cost-effective bearing solutions angular lo li angular contact contact d d lo li gothic arch gothic arch d d which thin section is right for you as with any bearing consideration must be given to the trade-off in performance characteristics when selecting or designing thin section bearings radial and angular contact designs are available as well as a
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thin section bearings angular contact configuration b c lo li angular contact d d ref basic p/n bore d o.d d width b land diameter li 0.961 1.144 1.320 1.457 1.582 1.707 2.187 2.234 2.687 2.734 3.187 3.234 3.281 3.437 3.484 3.531 3.687 3.734 3.781 3.937 3.984 4.031 4.187 4.234 4.281 4.375 4.437 4.484 4.531 4.625 lo 1.049 1.231 1.402 1.543 1.667 1.793 2.313 2.391 2.813 2.891 3.313 3.391 3.469 3.563 3.641 3.719 3.813 3.891 3.969 4.063 4.141 4.219 4.313 4.391 4.469 4.625 4.563 4.641 4.719 4.875 minimum corner chamfer c .010 .010 .010 .010 .010 .010 .025 .040 .025 .040 .025 .040 .040 .025 .040 .040 .025 .040 .040 .025 .040 .040 .025 .040 .040 .060 .025 .040 .040 .060 ball complement no z 32 38 44 49 53 57 36 31 44 38 52 44 37 56 47 40 60 51 43 64 54 46 68 58 49 36 72 61 52 38 size db 1/16 1/16 1/16 1/16 1/16 1/16 1/8 5/32 1/8 5/32 1/8 5/32 3/16 1/8 5/32 3/16 1/8 5/32 3/16 1/8 5/32 3/16 1/8 5/32 3/16 1/4 1/8 5/32 3/16 1/4 load ratings lbs radial capacity dynamic 200 215 228 240 248 255 1060
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thin section bearings angular contact configuration · provides greatest thrust load capacity unidirectional · od from 1.125 to 11 · bore sizes up to 10 · contact applications engineering for custom specifications ref basic p/n bore d o.d d width b land diameter li 4.687 4.734 4.781 4.875 4.937 4.984 5.031 5.125 5.187 5.234 5.281 5.375 5.734 5.781 5.875 6.234 6.281 6.375 6.734 6.781 6.875 7.281 7.375 7.781 7.875 8.281 8.375 8.875 9.375 9.875 10.375 lo 4.813 4.891 4.969 5.125 5.063 5.141 5.219 5.375 5.313 5.391 5.469 5.625 5.891 5.969 6.125 6.391 6.469 6.625 6.891 6.969 7.125 7.469 7.625 7.969 8.125 8.469 8.625 9.125 9.469 10.125 10.469 minimum corner chamfer c .025 .040 .040 .060 .025 .040 .040 .060 .025 .040 .040 .060 .040 .040 .060 .040 .040 .060 .040 .040 .060 .040 .060 .040 .060 .040 .060 .060 .060 .060 .060 ball complement no z 75 64 55 40 80 68 58 42 84 71 61 44 78 66 48 85 72 52 91 78 56 83 60 89 64 95 68 72 76 80 84 size db 1/8 5/32 3/16 1/4 1/8 5/32 3/16 1/4 1/8 5/32 3/16 1
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thin section bearings radial and gothic arch configurations cbcb lo li radial d d lo li gothic arch d d ref basic p/n1 bore d o.d d width b land diameter li 0.961 1.144 1.320 1.457 1.582 1.707 2.187 2.234 2.687 2.734 3.187 3.234 3.281 3.437 3.484 3.531 3.687 3.734 3.781 3.937 3.984 4.031 4.187 4.234 4.281 4.375 4.437 4.484 4.531 4.625 lo 1.049 1.231 1.402 1.543 1.667 1.793 2.313 2.391 2.813 2.891 3.313 3.391 3.469 3.563 3.641 3.719 3.813 3.891 3.969 4.063 4.141 4.219 4.313 4.391 4.469 4.625 4.563 4.641 4.719 4.875 minimum corner chamfer c .010 .010 .010 .010 .010 .010 .025 .040 .025 .040 .025 .040 .040 .025 .040 .040 .025 .040 .040 .025 .040 .040 .025 .040 .040 .060 .025 .040 .040 .060 ball complement no z 24 28 32 36 38 42 30 25 36 30 43 33 30 45 36 32 49 40 33 52 42 35 55 45 36 28 57 46 38 30 size db 1/16 1/16 1/16 1/16 1/16 1/16 1/8 5/32 1/8 5/32 1/8 5/32 3/16 1/8 5/32 3/16 1/8 5/32 3/16 1/8 5/32 3/16 1/8 5/32 3/16 1/4 1/8 5/32 3/16 1/4 load ratings lbs thrust radial capacity capaci
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thin section bearings radial and gothic arch configurations · gothic arch 4-point ball-to-race contact provides for reduced internal free play in axial and radial directions · radial accepts moderate radial and thrust loads at lower speeds · all bearings listed are available in radial and gothic arch configurations · contact applications engineering for custom specifications ref basic p/n1 bore d o.d d width b land diameter li 4.687 4.734 4.781 4.875 4.937 4.984 5.031 5.125 5.187 5.234 5.281 5.375 5.734 5.781 5.875 6.234 6.281 6.375 6.734 6.781 6.875 7.281 7.375 7.781 7.875 8.281 8.375 8.875 9.375 9.875 10.375 lo 4.813 4.891 4.969 5.125 5.063 5.141 5.219 5.375 5.313 5.391 5.469 5.625 5.891 5.969 6.125 6.391 6.469 6.625 6.891 6.969 7.125 7.469 7.625 7.969 8.125 8.469 8.625 9.125 9.469 10.125 10.469 minimum corner chamfer c .025 .040 .040 .060 .025 .040 .040 .060 .025 .040 .040 .060 .040 .040 .060 .040 .040 .060 .040 .040 .060 .040 .060 .040 .060 .040 .060 .060 .060 .060 .060 ball comple
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nhbb hitech division 175 jaffrey road peterborough new hampshire 03458 precision division corporate headquarters 9700 independence avenue chatsworth california 91311 astro division 155 lexington drive laconia new hampshire 03246 tel 603 924-4100 east fax 603 924-9302 east 818 993-4100 west 818 407-5020 west nhbb europe 1 sterling centre eastern road bracknell berkshire rg12 2pw england tel 44 0 1344-308888 fax 44 0 1344-307777 visit us at www.nhbb.com © 2003 nhbb inc.
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