RN307 RN307E RN307EM RN307M Cylindrical Roller Bearing Brass Cage Reducer Gearbox bearings

The RN307M is a non-inner-ring cylindrical roller bearing for heavy radial loads, widely used in industrial motors, heavy-duty reducers, and machine tool gearboxes. Model breakdown: "RN" = non-inner-ring series (saves space via direct shaft contact); "307" = size code (matches 35mm applicable shaft diameter); "M" = brass solid cage (suitable for medium-high speeds). Its non-inner-ring design fits precision shafts, ideal for space-constrained heavy-load scenarios.

Application Scenarios

• Industrial Motors: Heavy-duty AC motor rotors (15–35kW), bearing rotor weight and electromagnetic force.
• Heavy-Duty Reducers: Reducer output shafts (conveyors, mixers), withstanding torque-induced radial loads.
• Machine Tool Gearboxes: Medium CNC lathe/milling machine intermediate shafts, ensuring machining precision.
• Mining Auxiliary Equipment: Crusher drive shafts, balancing load resistance and dust tolerance.

Besides,we also have the models given as below in Stock:

  Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad recognitiongain and won the widely support and trust by customers in bearing fields.

  For decades, the company established and completed the quality management system of scientific standardization in line with international standards. In 2005 they won the title of Chinese famous brand ranging from tapered roller bearings, cylindrical roller bearings, spherical roller bearings, thrust ball bearing, angular contact ball bearings, deep groove ball bearings and various non-standard bearings etc.

  Our products are widely used in auto industries, construction machinery industries, electric power industries, pharmaceutical field, mining machinery, printing industries, highway engineering machinery, steel industires, textile machine industries and so on.

  Capable of solving all your bearing issues with its first-class professional advisers and skilled engineers, Wuxi Guangqiang Bearing Trade Co.,Ltd embrace any inquiry, negotiation, cooperation from new and old friends at any time.