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The double-row design greatly reduces flex in the suspension linkage while doubling the bearing contact area and the double-extended inner race eliminates the need for extra spacers to connect suspension linkages
This 12 tooth pulley set with 4mm upper & 5mm lower bolt-holes is designed as direct fit upgrade for SRAM 12 speed road and gravel derailleurs
and wear resistance of all the standard 440-series stainless alloys with high carbon content
BKS-6053 - BSA Thread-In
MR 17287 LLU/LLB C3 - ABEC-5, Radial Bearing (C3 Clearance) - 17mm x 28mm x 7mm sale The double-row design greatly reducesMR 17287 LLU LLB C3 ABEC 5, Radial Bearing (C3 clearance) 17mm x 28mm x 7mm This ABEC 5 bearing features deep groove design races, with Grade 10 balls, dual lip, labyrinth, full contact LLU seals facing outwards to withstand daily abuse of use and the elements, and lighter contact LLB seals facing inwards to contain the 90% fill Mobil XHP 222 high pressure water proof synthetic grease. CN clearance specification is best for looser press fit bearing
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