Description
NTN 31308 Tapered Roller Bearing, Single Row, 40 x 90mm â NTN. BOLTON SKU 66032.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. BOLTON sources technical equipment and components for defence, aerospace, UAV/UAS, MRO and industrial programmes across the UAE, Saudi Arabia and Australia.
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Metric tapered roller bearings are numbered so that the last two digits give the bore in five-millimetre steps: 08 in 31308 corresponds to the 40 mm bore. The 313 series prefix sets the width and taper proportions, and single-row types of this kind carry combined radial and axial load in one direction.

















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