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ODM External tooth single-row cross-roller rotary bearing Manufacturer, Suppliers
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ODM External tooth single-row cross-roller rotary bearing Manufacturer, Suppliers

ODM External tooth single-row cross-roller rotary bearing Manufacturer, Suppliers

The external tooth single-row cross-roller slewing bearing is an integrated component based on the "single-row cross-roller" high-precision support structure. The driving small gear meshes with the outer teeth of the outer ring, driving the outer ring to rotate (while the inner ring remains fixed). It integrates ultra-high rigidity, precise motion, and direct, efficient driving capabilities. While providing high-precision and high-rigidity support, it integrates direct driving capabilities and the installation and maintenance of the driving unit are convenient. 

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Product Description

🚀 Advantages
▶
High Precision & Convenient Driving: The precision advantage of the cross rollers is retained, while also having the characteristics of the external gear type that are easy to adjust and maintain.
▶
Direct Torque Transmission: When driving the upper rotating platform, the force arm is large, and the torque demand for driving is relatively small.
⚙ Technical Characteristics
11 Series Basic Parameters
Serial number Basic Size Configuration Size Mounting Size Structural Size Gear Data Outer Gear Data Inner Gear Data
Outerine teeth D d H D1 D2 Bolt Hole Screw Hole n n1 D3 d1 H1 h b m da Z da Z
Type 0 Type 123
D0 Ø Ø T
1 111.25.500 / 112.25.500 6023987556643418M16322044985026510605/6629/628.8123/102367/368.474/62
2 111.25.560 / 112.25.560 6624587562649418M16322045585626510605/6689/688.8135/112427/428.486/72
3 111.25.630 / 112.25.630 7325287569656418M16322446286326510606/8772.8/774.4126/94494.4/491.283/62
4 111.25.710 / 112.25.710 8126087577664418M16322447087126510606/8850.8/854.4139/104572.4/571.296/72
5 111.28.800 / 112.28.800 9226788287872222M20403067988027210658/10966.4/968118/94635.2/63480/64

* Note: The table above shows a selection of the 11 series parameters. Please refer to technical drawings for full specifications.

📍 Typical Application
Medium and large-sized precision CNC turntables
Precision welding positioners
High-performance radar antenna mounts
Medical devices (e.g., CT machine rotating frames)
Fourth axis of gantry machining centers
Frequently Asked Questions
1. What makes the 11 Series slewing bearings unique?
The 11 series combines the high precision of cross rollers with the easy adjustment and maintenance features of external gear systems, offering a balanced solution for heavy-duty precision tasks.
2. Why is the torque transmission path more efficient in this model?
By utilizing a larger force arm when driving the upper platform, the required driving torque is reduced, allowing for smoother rotation and less strain on the motor.
3. Can these bearings be used in medical environments?
Yes, they are ideal for high-precision medical equipment such as CT scanners, where stable and accurate rotation is critical.
4. What type of gears are available for the 11 series?
The series supports various gear configurations, including external gear (111 series) and internal gear (112 series) options, depending on your mechanical design requirements.
5. Are these bearings suitable for CNC machining?
Absolutely. They are commonly used in medium and large-sized CNC turntables and gantry machining centers as the fourth axis to ensure high-precision indexing.
6. How do I choose between different serial numbers in the 11 series?
Selection depends on the required basic size (D, d, H) and the mounting requirements (bolt hole patterns and gear data). Consult the technical data table for specific load and size capacities.

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