NTN Main Spindle Bearings 59 5S 2LAHSE 0 20 AD DB /GL P4 HSE type Contact angle code C 15˚ AD 25˚ No symbol 20˚ Bore diameter number (See dimension table) Dimension series code Bearing type 2LA：Special material with improved surface treatment 5S 2LAHSL 0 20 DB xx Dn /GL P4 TKZ
perform at a high speed (Fig 924) [Data 2] Improved main spindle rigidity Even if built into a highspeed main spindle the preload of 5SHSE standard type is maintained allowing high rigidity (19 times as great as that with conventional bearing) to be achieved (Fig 925) 2LAHSE0 2LAHSE9 5S2LAHSE0 5S2LA
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