XU300785 Crossed Roller Slewing Bearing 670×900×86mm for CNC Systems Factory Direct Price
The XU300785 crossed roller slewing bearing is designed for large CNC systems and industrial automation applications that require high rigidity, precise positioning, and stable rotation.
With its large diameter structure and optimized internal design, it ensures smooth motion and reliable performance under combined loads and continuous operation.
Factory direct price and wholesale supply are available. Send your inquiry to receive a quotation within 24 hours.
Applications
This crossed roller slewing bearing is widely used in:
- Large CNC rotary tables
- Industrial automation equipment
- Robotics and positioning systems
- Heavy-duty precision machinery
Ideal for applications requiring high load capacity, large diameter rotation, and long-term operational stability.

Key Advantages
- High rigidity design for precision positioning
- Large size for heavy-duty applications
- Smooth rotation with low friction
- Supports axial, radial, and moment loads
- Long service life in continuous operation
Designed to improve machining accuracy and overall system stability.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | XU300785 |
| Inner Diameter (ID) | 670 mm |
| Outer Diameter (OD) | 900 mm |
| Width | 86 mm |
| Structure | Crossed Roller Slewing Bearing |
| Gear Type | Without Gear |
| Material | High-quality Bearing Steel |
| Application | CNC / Automation |
| Customization | Available |
Related Models for Selection
| INA | Weight (Kg) | Da | di | La | dB | na | Li | H | h | da | Di | ds | ts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XU050077 | 1.4 | 112 | 40 | 97 | 6.6 | 6 | 56 | 22 | 21 | 74 | 77.5 | 11 | 5.5 |
| XU060094 | 2.4 | 140 | 57 | 120 | 9 | 6 | 70 | 26 | 25 | 93.4 | 94.6 | 15 | 6 |
| XU060111 | 1.2 | 145.79 | 76.2 | 133.1 | 6.9 | 8 | 88.9 | 15.87 | 15.87 | - | 111.8 | 11 | 6.35 |
| XU080120 | 4 | 170 | 69 | 177.8 | 9 | 6 | 90 | 30 | 29 | 119.4 | 120.6 | 15 | 9 |
| XU080149 | 3.6 | 196.85 | 101.6 | 147.8 | 6.9 | 16 | 115.8 | 22.22 | 22.22 | - | 149.6 | 11 | 6.35 |
| XU120179 | 7 | 234 | 124.5 | 214 | 11 | 12 | 144.5 | 35 | 30 | 178 | 180 | - | - |
| XU120222 | 12 | 300 | 140 | 270 | 16 | 12 | 170 | 36 | 30 | 220 | 222 | - | - |
| XU160220 | 16 | 302 | 138 | 270 | 18 | 10 | 170 | 46 | 41 | 219 | 221 | - | - |
| XU160260 | 15 | 329 | 191 | 305 | 14 | 20 | 215 | 46 | 41 | 259 | 261 | - | - |
| XU080264 | 6.9 | 311 | 215.9 | 295.3 | 8.7 | 12 | 231.8 | 25.4 | 25.4 | 263.4 | 264.6 | 13.7 | 8.6 |
| XU180380 | 45 | 485 | 275 | 453 | 18 | 16 | 307 | 55 | 50 | 379 | 381 | - | - |
| XU160405 | 25 | 474 | 336 | 450 | 14 | 30 | 360 | 46 | 41 | 404 | 406 | - | - |
| XU080430 | 12 | 480 | 380 | 462 | 9 | 20 | 398 | 26 | 26 | 429.4 | 430.6 | 15 | 9 |
| XU180412 | 40 | 501 | 324 | 469 | 18 | 18 | 356 | 55 | 50 | 411 | 413 | - | - |
| XU180433 | 42 | 522 | 344 | 4190 | 18 | 20 | 376 | 55 | 50 | 432 | 434 | - | - |
| XU220460 | 64 | 568 | 356 | 524 | 22 | 18 | 396 | 64 | 59 | 459 | 461 | - | - |
| XU180475 | 46 | 562 | 388 | 530 | 18 | 20 | 420 | 55 | 50 | 474 | 476 | - | - |
| XU300515 | 115 | 646 | 384 | 598 | 26 | 18 | 432 | 86 | 79 | 514 | 516 | - | - |
| XU240545 | 94 | 655 | 435 | 615 | 22 | 24 | 475 | 79 | 72 | 544 | 546 | - | - |
| XU220574 | 82 | 680 | 468 | 640 | 22 | 20 | 508 | 68 | 61 | 573 | 575 | - | - |
| XU300586 | 115 | 704 | 468 | 664 | 22 | 18 | 508 | 86 | 79 | 585 | 587 | - | - |
| XU280680 | 120 | 798 | 565 | 755 | 22 | 30 | 605 | 79 | 72 | 679 | 681 | - | - |
| XU300785 | 155 | 900 | 670 | 860 | 22 | 36 | 710 | 86 | 79 | 784 | 786 | - | - |
| XU260823 | 140 | 933 | 713 | 893 | 22 | 36 | 753 | 79 | 72 | 822 | 824 | - | - |
| XU160897 | 67 | 976 | 818 | 944 | 18 | 36 | 850 | 50 | 43 | 896 | 898 | - | - |
Not sure which model fits your application? Contact us for selection support.
Interchangeable Brands
This bearing can replace:
- INA Bearings crossed roller bearings
- Other equivalent international brands
Suitable for maintenance, replacement, and OEM applications.
Why Choose GQZ Bearing
- 25+ years experience in industrial bearing manufacturing
- Rich experience in CNC and precision equipment applications
- Strict quality inspection before shipment
- OEM and custom bearing solutions available
- Fast response within 24 hours
- Stable supply for long-term cooperation
We help customers ensure precision, reliability, and long-term performance.



Quality Control
- Raw material inspection
- Precision machining process
- Heat treatment control
- Clearance and rotation testing
- Final inspection before delivery
Ensuring consistent quality for every bearing.

Get a Quote Now
Looking for a reliable slewing bearing supplier?
Send your inquiry today to get:
- Quotation within 24 hours
- Technical support from engineers
- Custom solution suggestions
- Competitive factory price
Click “Chat Now" to contact us directly.
FAQ
Q1: Is XU300785 suitable for large CNC rotary tables?
Yes, it is specifically designed for large CNC systems requiring high rigidity and precision.
Q2: Is this an original INA product?
No, this is not an original INA Bearings product.
It is a compatible replacement manufactured by GQZ Bearing with similar performance and dimensions.
Q3: Do you provide customization?
Yes, customization is available based on drawings or application requirements.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.