Haotian needle roller bearings fitted with thin, long roller (roller diameter d ≤ 5mm, L/D ≥ 2.5, L for roller lengths), radial structure compact, bearing diameter size and load carrying capacity and other types is the same as the minimum outside diameter, especially suitable for unrestricted support to a radial mounting dimensions results.Under using occasions different, can selection no within ring of bearing or roll needle and keep frame component, at this time and bearing match of axis neck surface and shell hole surface directly as bearing of within, and outside scroll surface, for guarantee load ability and running performance and has rings bearing same, axis or shell hole roll road surface of hardness, processing precision and surface quality should and bearing rings of roll road similar.
