... working conditions limit. In general, we use heat generated factors -- unit area load P and surface line speed V product PV value ... /sD -- the sleeve bore, unit: MN -- shaft speed, unit: r/minP=W/ (DL) (2)Type: P -- unit area load, i.e. the total load ... shaft sleeve projection area ratio, unit: PaW -- sleeve by the total load, unit: ND -- the sleeve bore, unit: ML -- sleeve length, unit: M2 PV value ...