Single Row Cylindrical Roller Bearings without An Inner Ring
BMT’s Single Row Cylindrical Roller Bearings Without an Inner Ring are engineered for high radial load applications where compact structure, durability, and operational efficiency are essential. As a professional bearing manufacturer in China, BMT provides reliable bearing solutions designed to meet the demands of global industrial equipment manufacturers and distributors.
Minimum Order Quantity: 100 sets
Payment Terms: 30% T/T in advance, 70% before shipment
Delivery Time: 20 days
Minimum Order Quantity: 100 sets
Payment Terms: 30% T/T in advance, 70% before shipment
Delivery Time: 20 days
BMT Single Row Cylindrical Roller Bearings Without an Inner Ring feature a specialized design that eliminates the inner ring, allowing the rollers to directly contact the shaft surface. This structure increases the effective contact area and enables the bearing to support heavier radial loads while maintaining excellent rotational performance.
The cylindrical rollers are precision-machined and carefully arranged to distribute loads evenly during operation. Strict quality control throughout the roller manufacturing process helps reduce stress concentration, minimize wear, and extend bearing service life. As a result, equipment downtime and maintenance frequency are significantly reduced.
Main Features
· High radial load capacity
· Compact axial design
· Reduced friction and wear
· Smooth high-speed performance
· Longer service life
· Easy installation and maintenance
· Cost-effective bearing solution
Technical Parameters
| Bearing Model | d (mm) | D (mm) | B (mm) | Cr (kN) | Cor (kN) | Limiting Speed (Grease) (rpm) | Limiting Speed (Oil) (rpm) | Weight (kg) |
| RNU 1011 | 28 | 52 | 15 | 16.2 | 14.5 | 13000 | 16000 | 0.14 |
| RNU 203 | 17 | 40 | 12 | 9.2 | 8.1 | 18000 | 22000 | 0.06 |
| RNU 305 | 35 | 62 | 17 | 28.6 | 24.5 | 15000 | 18000 | 0.18 |
| RNU 308 | 53.5 | 90 | 23 | 55 | 48 | 12000 | 15000 | 0.64 |
| RNU 309 | 45 | 100 | 25 | 63 | 56 | 11000 | 14000 | 0.75 |
| RNU 310 | 50 | 110 | 27 | 70 | 62 | 10000 | 13000 | 0.85 |
| RNU 311 | 55 | 120 | 29 | 78 | 70 | 9500 | 12000 | 0.95 |
| RNU 312 | 60 | 130 | 31 | 86 | 77 | 9000 | 11500 | 1.05 |
| RNU 313 | 65 | 140 | 33 | 94 | 84 | 8500 | 11000 | 1.15 |
| RNU 314 | 70 | 150 | 35 | 102 | 92 | 8000 | 10000 | 1.25 |
| RNU 315 | 75 | 160 | 37 | 110 | 100 | 7500 | 9500 | 1.35 |
| RNU 316 | 80 | 170 | 39 | 118 | 108 | 7000 | 9000 | 1.45 |
| RNU 317 | 85 | 180 | 41 | 126 | 116 | 6500 | 8500 | 1.55 |
| RNU 318 | 90 | 190 | 43 | 134 | 124 | 6000 | 8000 | 1.65 |
| RNU 319 | 95 | 200 | 45 | 142 | 132 | 5500 | 7500 | 1.75 |
| RNU 320 | 100 | 210 | 47 | 150 | 140 | 5000 | 7000 | 1.85 |
| RNU 321 | 105 | 220 | 49 | 158 | 148 | 4800 | 6800 | 1.95 |
| RNU 322 | 110 | 230 | 51 | 166 | 156 | 4600 | 6600 | 2.05 |
| RNU 323 | 115 | 240 | 53 | 174 | 164 | 4400 | 6400 | 2.15 |
| RNU 324 | 120 | 250 | 55 | 182 | 172 | 4200 | 6200 | 2.25 |
| RNU 325 | 125 | 260 | 57 | 190 | 180 | 4000 | 6000 | 2.35 |
| RNU 326 | 130 | 270 | 59 | 198 | 188 | 3800 | 5800 | 2.45 |
| RNU 327 | 135 | 280 | 61 | 206 | 196 | 3600 | 5600 | 2.55 |
| RNU 328 | 140 | 290 | 63 | 214 | 204 | 3400 | 5400 | 2.65 |
| RNU 329 | 145 | 300 | 65 | 222 | 212 | 3200 | 5200 | 2.75 |
| RNU 330 | 150 | 310 | 67 | 230 | 220 | 3000 | 5000 | 2.85 |
| RNU 331 | 155 | 320 | 69 | 238 | 228 | 2800 | 4800 | 2.95 |
| RNU 332 | 160 | 330 | 71 | 246 | 236 | 2600 | 4600 | 3.05 |
| RNU 333 | 165 | 340 | 73 | 254 | 244 | 2400 | 4400 | 3.15 |
| RNU 334 | 170 | 350 | 75 | 262 | 252 | 2200 | 4200 | 3.25 |
| RNU 335 | 175 | 360 | 77 | 270 | 260 | 2000 | 4000 | 3.35 |
| RNU 336 | 180 | 370 | 79 | 278 | 268 | 1800 | 3800 | 3.45 |
Advantages
High Load-Carrying Capacity
The direct contact between rollers and shaft surfaces enables these bearings to withstand heavy radial loads efficiently. They are suitable for demanding industrial equipment operating under continuous load conditions.
Compact Space-Saving Design
Without an inner ring, the bearing occupies less axial space, making it ideal for compact machinery and applications with limited installation room.
Economical and Efficient
The simplified structure reduces manufacturing costs while maintaining high performance and reliability, offering customers a cost-effective bearing solution.
Easy Installation and Maintenance
The streamlined design simplifies installation procedures and reduces maintenance requirements, helping minimize equipment downtime and operating costs.
Applications
Woodworking Machinery
These bearings are widely used in woodworking machine spindles, where high precision and stable load support are essential. Their compact structure also helps optimize machine design and workshop space utilization.
Packaging Equipment
Packaging machines require reliable high-speed operation and consistent performance. BMT bearings provide smooth rotation, low friction, and improved production efficiency in packaging drive systems.
Industrial Motors
The compact structure and high-speed capability make these bearings suitable for various industrial motor applications requiring efficient power transmission.
Printing Machinery
Their excellent radial load capacity and stable performance support continuous operation in high-speed printing equipment.
Why Choose BMT
Extensive Manufacturing Experience
With more than 15 years of experience in bearing production, BMT has developed strong technical expertise and mature manufacturing processes.
Advanced Production Equipment
Our factory is equipped with modern CNC machining centers and precision inspection equipment to ensure stable product quality and dimensional accuracy.
Strict Quality Control
Each bearing undergoes rigorous inspection and testing before shipment to ensure consistent performance and reliability.
Global Export Capability
BMT products are exported to over 40 countries and regions worldwide and are trusted by customers across multiple industrial sectors.
Professional Technical Support
Our experienced team provides comprehensive support for product selection, installation guidance, and after-sales service.
Installation and Maintenance Tips
Shaft Surface Preparation
Ensure the shaft surface is clean, smooth, and free from burrs or defects before installation. Proper shaft tolerance is essential for optimal bearing performance.
Proper Lubrication
Use high-quality lubricants suitable for the operating environment and regularly inspect lubrication conditions to maintain stable operation.
Routine Monitoring
Monitor operating temperature, vibration, and noise levels during use. Any abnormal changes should be inspected promptly to prevent further damage.
Contact BMT
If you are looking for high-quality Single Row Cylindrical Roller Bearings Without an Inner Ring, BMT can provide reliable solutions tailored to your application requirements. Contact us today for detailed specifications, pricing, and technical support.
Hot Tags: Single Row Cylindrical Roller Bearings without An Inner Ring
Related Category
Send Inquiry
Contact Info
-
Address
No.183,Longfeng,West of Zhangting industrial Zone,Yuyao,Ningbo,China
-
Tel
-
E-mail
Submit specifications for Industrial Bearings, Deep Groove Ball Bearings, Taper Roller Bearings, and more. BMT’s team responds within 24 hours with competitive pricing for durable bearings.
