M: Machined brass cage, ball guide. Different designs and materials after the M plus a digital ID, such as M2MA: machined brass cage SKF deep groove ball original agent, the outer guide MB: machined brass cage, inner guidance MT33: lithium-based grease Original FAG deep groove ball bearings agent, NLGI consistency 3, the temperature range of -30 to +120 degrees (standard filling volume) MT47: lithium grease, NLGI consistency 2, the temperature range of -30 to +110 degrees (standard filling volume) N : outer ring with snap groove NR: outer ring with snap ring groove and snap N1: the outer side of the groove (with stop means for preventing rotation of the outer ring) P5: dimensional accuracy and rotational accuracy to ISO tolerance Level 5P6: dimensional accuracy and rotational accuracy to ISO tolerance class 6P52: P5 + C2P62: P6 + C2P63: P6 + C3, 2 single row deep groove ball bearings with dust cover single row deep groove ball bearings 3, with a dust cover, a ring of single row deep groove ball bearings 4, with snap groove and snap ring of single row deep groove ball bearing 5 on the outer ring, ball gap deep groove ball bearings 6, double row deep groove ball bearing according to the deep groove ball bearing sizes can be divided into: (1) miniature bearings ---- nominal diameter size range of 26mm or less bearing; (2) small bearings ---- nominal diameter size range of 28-55mm bearings; ( 3) small and medium sized bearing ---- nominal diameter size range of 60-115mm bearings; (4) the large bearing ---- nominal diameter size range of 120-190mm bearing (5) Large bearing --- - nominal diameter size range of 200-430mm bearings; (6) large bearings ---- nominal diameter size range of 440mm or more bearings. Supply V-groove deep groove ball bearings, deep groove ball bearings, provided by the Dongguan City, Long-Long-Bearing Machinery Co., Ltd. Dongguan City, Long-Bearing Machinery Co., Ltd. (long-yu.net) strong, credible, in Dongguan, Guangdong thrust roller bearings and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Long Yu and you hand into the brilliant, for a better future!