35×68.2x21mm RN307M Machined Brass Cage Cylindrical Roller Bearing
| Item No : | RN307M |
| Size (d*D*B) : | 35×68.2x21mm |
| Material : | |
| Lead Time : | 3-5 days |
| Weight : | 0.315KG |
| MOQ : | 10 pcs |
⚙️Product Description:
Looking for a heavy-duty, high-speed radial load solution to eliminate downtime in demanding transmission systems? Our RMO Brand RN307M Cylindrical Roller Bearing is engineered to deliver exceptional reliability under extreme industrial conditions. Featuring a standard 35mm bore, 68.2mm outer diameter, and 21mm width profile, this single-row bearing utilizes an RN-configuration (inner ring with double integral flanges and no outer ring), allowing the housing bore to act directly as the raceway for ultimate space-saving setups. Upgraded with a premium machined solid brass cage (M Suffix), it offers unmatched thermal stability and superior vibration resistance. As an agile B2B bearing partner, we offer this high-precision component under our proprietary “RMO” brand for optimized profitability, or source other global tier-1 premium brands through our extensive supply network to match your exact procurement criteria.
⚙️Product Features:
- Premium Machined Brass Cage (M): The robust solid brass retainer guides rollers with minimal friction, ensuring excellent performance at high rotational speeds, low noise, and superior heat dissipation.
- Separable RN Configuration: Designed with a double-ribbed inner ring and without an outer ring, simplifying mounting, dismounting, and alignment in custom compact gearboxes.
- Maximum Radial Load Capacity: Optimized line contact between the cylindrical rollers and the precision-ground raceway maximizes mechanical rigidity and radial carrying limits.
- High-Purity Chrome Steel (GCr15): Both the inner ring and rolling elements undergo advanced vacuum degasification and deep hardening for long-lasting rolling contact fatigue life.
- Dual Brand Sourcing Solutions: Capitalize on massive cost benefits with our factory-direct RMO brand to increase your margins, or request our global trade division to procure authentic international market-leading brands.
⚙️Product Applications:
Due to its superior high-speed limits and massive radial rigidity, the RN307M brass cage bearing is widely utilized in:
- Heavy-duty industrial gearboxes, speed reducers, and mining machinery drive trains.
- High-power electric motors, industrial generators, and large traction motors.
- Machine tool(spindles), metal forming machinery, and paper mill processing rollers.
- Heavy vehicle transmissions, commercial truck gearboxes, and railway axle boxes.
- Oilfield drilling equipment, heavy-duty mud pumps, and high-vibration vibrating screens.
⚙️Precautions:
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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⚙️Obtain Certificate:
About Rimao
Since its establishment in 2011, Rimao Bearing has combined international vision with local wisdom and injected innovative ideas into every bearing and pulley with its profound industry accumulation and unremitting pursuit of technology. We have not only passed CE and ROHS certification, but also set a new benchmark in the industry and led the development trend of the bearing industry.
We are not just a ball bearing and roller bearing importer and wholesaler. We provide real solutions to help you achieve the product and design goals set by your customers. With more than 20 years of production and sales experience, tens of thousands of models and specifications, we look forward to cooperating with you!
⚙️Technical Parameters:
| Item No. | RN307M |
| Bearing Type | Cylindrical Roller Bearing – RN Type |
| Size | 35×68.2x21mm |
| Rings Material | |
| Rollers Material | |
| Cage Material | Machined Solid Brass Cage |
| Precision Class | P0 / P6 |
| Working Temperature Range | -30°C to +120°C |
| Brand | RMO/Neutral/OEM/Other Brands |
| Package | |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Service | Support Sample Testing |
| Shipping | |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |
| Model No. | d | D | H | m |
| RN204 | 20 mm | 40 mm | 14 mm | 0.08 KG |
| RN205 | 25 mm | 45 mm | 15 mm | 0.09 KG |
| RN206 | 30 mm | 53.5 mm | 16 mm | 0.14 KG |
| 502206W1 | 30 mm | 53.5 mm | 16 mm | 0.14 KG |
| RN206E | 30 mm | 53.5 mm | 16 mm | 0.13 KG |
| 502206EA | 30 mm | 53.5 mm | 16 mm | 0.31 KG |
| RN606M | 30 mm | 60 mm | 26 mm | 0.34 KG |
| RN606M-1 | 30 mm | 68 mm | 26 mm | 0.43 KG |
| RN208 | 40 mm | 70 mm | 18 mm | 0.27 KG |
| RN208E | 40 mm | 71.5 mm | 18 mm | 0.24 KG |
| RN307 | 35 mm | 68.2 mm | 21 mm | 0.32 KG |
| RN309 | 45 mm | 86.5 mm | 25 mm | 0.61 KG |
| RN310 | 50 mm | 95 mm | 27 mm | 0.8 KG |
| RN312 | 60 mm | 113 mm | 31 mm | 1.28 KG |
| RN313 | 65 mm | 121.5 mm | 33 mm | 1.57 KG |
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