NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
Crossed tapered roller bearings are specifically designed for high-overturning-moment scenarios, featuring double sets of raceways and tapered rollers arranged at a right angle with alternate rollers facing opposite directions. They are suitable for high-rigidity, precision, and heavy-duty applications. Their cross-section height similar to single-row bearings simplifies bearing housing design, while the steep-angle tapered geometry ensures an effective span much greater than width, making them ideal for large hobbling machines, industrial robots, high-speed vertical lathes, and other precision equipment.
Structural Features:Raceways & Rollers: Double sets of raceways; tapered rollers arranged at 90°, alternate rollers in opposite directions
Size：inner ring:203.2-1549.4mm, outer ring：279.4-1828.8mm;width:31.75-114.3mm
Materials:Rings & rollers: GCr15 high-carbon chromium steel, SUS440C stainless steel (corrosion-resistant)
Cages: Nylon 66 (lightweight), brass (high-strength)
Accuracy Grade:P5, P4, P2
Delivery/Customization:Standard models: 7–15 days；Customized models: Negotiable based on specifications; supports tailored design for special working conditions
| Part Number | Main dimensions | Basic dynamic load rating | Limiting speed | Weight | ||||
| Inner ring | Outer ring | Width | Chamfer | Radial | Axial | |||
| (mm) | D(mm) | B(mm) | r(min) | Cr(KN) | Ca(KN) | (Oil) | (Kg) | |
| NB.HXR496051 | 203.2 | 279.4 | 31.75 | 1.5 | 41 | 49.2 | 800 | 6.5 |
| NB.HXR678052 | 330.2 | 457.2 | 63.5 | 3 | 80 | 98.4 | 620 | 35 |
| NB.HXR766051 | 457.2 | 609.6 | 63.5 | 3 | 106 | 133 | 520 | 51 |
| NB.HXR820060 | 580 | 760 | 80 | 5 | 106 | 209 | 300 | 100 |
| NB.HXR855053 | 685.8 | 914.4 | 79.375 | 3 | 180 | 224 | 260 | 150 |
| NB.HXR882055 | 901.7 | 1117.6 | 82.55 | 3 | 225 | 297 | 200 | 185 |
| NB.HXR889058 | 1028.7 | 1327.15 | 114.3 | 3 | 283 | 374 | 160 | 400 |
| NB.HXR897051 | 1549.4 | 1828.8 | 101.6 | 3 | 326 | 489 | 80 | 500 |
| NB.HJXR637050 | 300 | 400 | 37 | 1.5 | 47.2 | 60 | 720 | 13 |
| NB.HJXR652050 | 310 | 425 | 45 | 2.5 | 61.6 | 76.5 | 640 | 20 |
| NB.HJXR699050 | 370 | 495 | 50 | 3 | 70.2 | 89.2 | 600 | 30 |
Utilizing tapered rollers in line contact, these bearings can support high radial, axial, and overturning moment loads, providing exceptional rotational rigidity and stability.
The cross-section height is similar to a single-row bearing, while the effective load span is much greater than the bearing's width. This allows for more compact machinery and simpler housing designs.
Precision-ground raceways and rollers ensure smooth and accurate operation, minimizing vibration and noise, which is critical for high-precision positioning applications.
Optimized raceway geometry and high-quality materials ensure low-friction operation, significantly extending the bearing's service life.
1. Heavy-Duty Machine Tool Rotary Tables
Large Vertical Machining Centers (VMCs) and Boring Mills: Used in the rotary tables that hold massive, off-center workpieces. The bearing must resist the enormous tilting moments and cutting forces generated during heavy milling and boring operations without any perceptible deflection.
Indexing Tables for Heavy Section Machining: In applications involving intermittent cuts on large parts, where shock loads are a significant factor.
2. Industrial Robotic Arms
Heavy-Payload Material Handling Robots: In the base and primary joints of robots designed to carry loads of several hundred kilograms or even tons. The bearing supports the robot's structure and the moment loads created by the extended arm.
Spot Welding Guns on Automotive Lines: The wrist joint of a large spot-welding robot experiences severe moment loads. The crossed tapered roller bearing provides the necessary rigidity to keep the welding tips accurately aligned.
3. Construction, Mining, and Material Handling Equipment
Slewing Rings for Excavators and Cranes: This is a classic application. The bearing forms the "slew ring" that allows the upper structure of an excavator or mobile crane to rotate relative to the undercarriage. It handles the combined weight of the upper structure (axial load), the load moment, and dynamic shock loads.
Stacker Cranes and Portal Slewing Cranes: In the rotation mechanism of large warehouse and port equipment.
4. Wind Turbines
Yaw and Pitch Drives: While large-diameter slewing bearings are common, crossed tapered roller bearing principles are applied in these massive bearings. They must support the immense weight of the nacelle (yaw) and the aerodynamic forces on the blades (pitch) while providing precise positioning.
NewBee Machinery provides high quality shaft, bearing, gears, CNC machines and other customized mining machinery.
NewBee Machinery has 20 years’ experience in customize machinery parts.
Professional and effective research and design team
We have advanced large CNC centner and processing equipment.
NewBee Machinery provides cost effective products for global customers.
If you are looking for customized machinery parts, precision bearings or CNC Machinery, feel free to contact us and our team will reply within 48 hours.
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sales@newbeetrans.com
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