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.
SXU Crossed Roller Bearings SXU crossed roller bearings are specifically designed for high-precision rotary systems, featuring an integral inner ring, split outer ring, and 90° orthogonal "X"-shaped cylindrical roller arrangement. They are suitable for high-accuracy, space-constrained, and easy-assembly applications. Their integral inner ring ensures consistent roller movement tracks, while the split outer ring simplifies installation and preload adjustment, making them ideal for equipment requiring rigid support and precise rotation, such as precision rotary tables, semiconductor equipment, medical instruments, and robotic joints.
Structure Type:Inner Ring: Integral structure with precision-ground raceway (ensures consistent roller movement tracks)；Outer Ring: Split design (facilitates installation and preload adjustment, reduces assembly cumulative errors)；Roller Arrangement: 90° orthogonal "X"-shaped cylindrical rollers
Accuracy Class:Rotational Accuracy: P5, P4；Run-out Tolerance: P5, P4
Clearance:CC0: -0.015–0 mm；C0: 0–0.015 mm； C1: ＞0.015 mm Size: Metric Series:Inner diameter: 130–360 mm；Outer diameter: 205–435 mm；Assembly height: 25.4 mm
Sealing Options:Open Type: Requires regular external lubrication, suitable for clean environments；Contact Rubber Seal (UU/U): Dust-proof and splash-proof, suitable for industrial dusty or humid environments
Lubrication Methods:Grease Lubrication: Long-acting lubricating grease (e.g., Krytox®), suitable for high-temperature (≤120°C) or vacuum environments；Oil Lubrication: Circulating oil system, suitable for ultra-high-speed (≤3,000 rpm) or heavy-load scenarios
Materials:Bearing rings and rollers: GCr15 high-carbon chromium steel (surface hardness HRC 60-62) or SUS440C stainless steel (corrosion-resistant)；Cage: Nylon 66 (lightweight), brass (high-strength) or customized composite materials
Delivery/Customization:Standard models: 5–10 days；Customized models: Requires additional negotiation
| Crossed Roller Bearing NB.SXU080 Series | |||||||||||
| Bearing Model | Main dimensions | Mounting hole | R | Rating(axial) | Rating(radial) | Limiting speed | Weight | ||||
| Inner ring | Outer ring | Width B /B1 | |||||||||
| d(mm) | D(mm) | (mm) | rmin | Ca(kN) | C0a(kN) | Cr(kN) | C0r(kN) | r/min | kg | ||
| NB.SXU080168 | 130 | 205 | 25.4 | 12 | 1.1 | 66 | 240 | 42 | 96 | 227 | 3.3 |
| NB.SXU080188 | 150 | 225 | 25.4 | 16 | 1.1 | 71 | 275 | 46 | 110 | 203 | 3.7 |
| NB.SXU080218 | 180 | 225 | 25.4 | 20 | 1.1 | 77 | 315 | 49 | 127 | 175 | 4.3 |
| NB.SXU080258 | 220 | 295 | 25.4 | 24 | 1.5 | 84 | 375 | 54 | 151 | 148 | 5.1 |
| NB.SXU080318 | 280 | 355 | 25.4 | 28 | 1.5 | 93 | 465 | 59 | 185 | 120 | 6.3 |
| NB.SXU080398 | 360 | 435 | 25.4 | 36 | 2 | 106 | 590 | 68 | 236 | 96 | 7.8 |
| Crossed Roller Bearing NB.SXU140 Series | |||||||||||
| Bearing Model | Main dimensions | Mounting hole | R | Rating(axial) | Rating(radial) | Limiting speed | Weight | ||||
| Inner ring | Outer ring | Width B /B1 | |||||||||
| d(mm) | D(mm) | (mm) | rmin | Ca(kN) | C0a(kN) | Cr(kN) | C0r(kN) | r/min | kg | ||
| NB.SXU140414 | 344 | 484 | 56 | 24 | 2 | 229 | 520 | 146 | 250 | - | 28 |
| NB.SXU140544 | 474 | 614 | 56 | 32 | 2.5 | 270 | 680 | 170 | 330 | - | 38 |
| NB.SXU140644 | 574 | 714 | 56 | 36 | 1.1 | 290 | 800 | 185 | 395 | - | 44 |
| NB.SXU140744 | 674 | 814 | 56 | 40 | 1.5 | 315 | 930 | 200 | 455 | - | 52 |
| NB.SXU140844 | 774 | 914 | 56 | 40 | 1.5 | 340 | 1050 | 215 | 510 | - | 60 |
| NB.SXU140944 | 874 | 1014 | 56 | 44 | 3 | 360 | 1170 | 227 | 580 | - | 67 |
| NB.SXU141094 | 1024 | 1164 | 56 | 48 | 3 | 390 | 1360 | 246 | 670 | - | 77 |
It can bear radial, axial, and moment loads simultaneously, eliminating the need for additional bearing combinations.
It is suitable for scenarios with limited space
With P4 - level accuracy, it can meet the positioning requirements at the nanometer level.
The nylon cage and thin - walled structure reduce the overall weight of the equipment
1. Heavy-Duty Industrial Robots
Spot Welding Robots: The gun attached to the robot's wrist creates massive moment loads. The SXU bearing in the wrist joint prevents any "sag" or deflection, ensuring the welding tip stays precisely on target.
Heavy-Payload Material Handling Robots: In the base and major joints of robots that carry very heavy loads, where the combined weight and leverage generate immense radial and moment loads.
2. Large Precision Rotary Tables
Vertical Machining Center (VMC) Rotary Tables: Especially for large-format tables used in aerospace or mold/die manufacturing. When a massive, off-center workpiece is mounted, the tilting moment is enormous. The SXU bearing ensures the table does not deflect under heavy cutting forces, guaranteeing machining accuracy across the entire surface.
Indexing Tables for Heavy-Duty Milling: In applications where high-speed milling is performed on a rotating table, the SXU bearing absorbs the intense vibrations and cutting forces.
3. Specialized High-Precision Machinery
Large-Diameter Radar and Satellite Antenna Pedestals: Where wind loads and the weight of the antenna itself create significant moment loads, and precise positioning is critical.
Telescope Mounts: For large professional telescopes, where the mount must support immense weight with zero flex to enable precise tracking of celestial objects over long periods.
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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