ZKLDF Series Turntable Bearings are a type of large-diameter bearing designed for high precision and heavy-load applications. They are used in equipment requiring smooth, accurate rotational movement while supporting significant axial, radial, and moment loads. The ZKLDF Series is known for its ability to handle combined loads efficiently and is commonly used in turntables, rotary tables, and other machinery where precision is crucial. The ZKLDF Series Turntable Bearings are crucial for high-precision machinery requiring reliable, heavy-load support and smooth rotational movement. Ensuring proper selection, installation, and maintenance will help achieve optimal performance and longevity in various applications.
Design and Construction:
Design: The ZKLDF Series bearings are typically a combination of radial and axial bearings, integrated into a single unit. This allows them to handle complex loading conditions, including axial, radial, and tilting moment loads.
Components: These bearings usually feature an outer ring, an inner ring, rolling elements (balls or rollers), and cages. The design integrates these elements to support high loads while ensuring smooth and accurate rotation.
Seals and Lubrication: Often equipped with seals to protect against contaminants and retain lubrication, ensuring long service life and reliable operation.
Applications:
Turntables: Used in various turntable systems, including those in machine tools, packaging lines, and automation systems, where precise rotational movement is needed.
Rotary Tables: Employed in rotary tables for machining, assembly, and inspection, where precise positioning and high load capacity are required.
Radar and Antenna Systems: Suitable for applications like radar and antenna systems where accurate tracking and rotation are essential.
Medical Equipment: Used in medical imaging and diagnostic equipment for precise and smooth rotational movements.
Advantages:
High Load Capacity: Can handle substantial axial, radial, and tilting moment loads, making them suitable for demanding applications.
Precision: Provides high accuracy in rotational movement and positioning, crucial for applications requiring precise operation.
Integrated Design: Reduces the need for multiple bearings and simplifies assembly, which can enhance reliability and reduce maintenance needs.
Disadvantages:
Cost: High-precision bearings like those in the ZKLDF Series can be costly, particularly for larger sizes or specialized designs.
Size and Weight: Larger bearings may be heavy and require careful handling and installation.
Maintenance: Requires regular maintenance and proper lubrication to ensure continued smooth operation and to avoid premature wear.
Technical Specifications:
Dimensions: Includes the outer diameter, inner diameter, and thickness of the bearing. The specific dimensions depend on the model and application.
Load Ratings: Specifies the maximum axial, radial, and tilting moment loads the bearing can support. These ratings are crucial for ensuring the bearing performs adequately in its application.
Accuracy: Defines the precision of the bearing’s rotation and runout, which affects the overall performance in precision applications.
Lubrication: Bearings typically require specific lubrication methods, which can include grease or oil, based on the operating conditions and requirements.
Installation and Maintenance:
Installation: Correct installation is essential to avoid misalignment and damage. Follow the manufacturer’s guidelines for proper mounting and securing of the bearing.
Lubrication: Regular lubrication helps minimize friction and wear. The type of lubrication and frequency depend on the application and operational conditions.
Inspection: Periodic inspections for signs of wear, misalignment, or damage can help prevent operational issues and extend the bearing's service life.
Bearing Type | Dimension | The fixing Hole | |||||||||||||
d | D | H | H1 | D1 | D2 | D3 | J | J1 | a | Inner Ring | Outer Ring | ||||
d1 | d2 | 3) | d3 | 3) | |||||||||||
Unit:mm | mm | QTY3) | mm | QTY3) | |||||||||||
ZKLDF100 | 100 | 185 | 38 | 25 | 160 | 136 | 158 | 112 | 170 | 5.4 | 5.6 | 10 | 16 | 5.6 | 15 |
ZKLDF120 | 120 | 210 | 40 | 26 | 184 | 159 | 161 | 135 | 195 | 6.2 | 7 | 11 | 22 | 7 | 21 |
ZKLDF150 | 150 | 240 | 40 | 26 | 214 | 188 | 211 | 165 | 225 | 6.2 | 7 | 11 | 34 | 7 | 33 |
ZKLDF200 | 200 | 300 | 45 | 30 | 274 | 243 | 271 | 215 | 285 | 6.2 | 7 | 11 | 46 | 7 | 45 |
ZKLDF260 | 260 | 385 | 55 | 36.5 | 345 | 313 | 348 | 280 | 365 | 8.2 | 9.3 | 15 | 34 | 9.3 | 33 |
ZKLDF325 | 325 | 450 | 60 | 40 | 415 | 380 | 413 | 342 | 430 | 8.2 | 9.3 | 15 | 34 | 9.3 | 33 |
ZKLDF395 | 395 | 525 | 65 | 42.5 | 486 | 450 | 488 | 415 | 505 | 8.2 | 9.3 | 15 | 46 | 9.3 | 45 |
ZKLDF460 | 460 | 600 | 70 | 46 | 560 | 520 | 563 | 482 | 580 | 8.2 | 9.3 | 15 | 46 | 9.3 | 45 |
ZKLDF580 | 580 | 750 | 90 | 60 | 702 | 656 | 700 | 610 | 720 | 11 | 11.4 | 18 | 45 | 11.4 | 42 |
Screw Connection | Connect Screw Holes | 1) | Tightening Torque of Screw | Basic Rated Load | 4) | Bearing Friction Torque | Weight | Type | ||
QTY | Pitch1) | Axial | Limited Speed 4) | |||||||
t | Dynamic | Static | ||||||||
MA2) | Ca | Coa | Grease Lubrication | |||||||
G | Xt | Nm | kN | r/min | Nm | ≈Kg | ||||
2 | M5 | 3 | 18×20° | 8.5 | 67 | 251 | 2800 | 1.6 | 4.5 | ZKLDF100 |
2 | M8 | 3 | 24×15° | 14 | 72 | 315 | 2400 | 2 | 6 | ZKLDF120 |
2 | M8 | 3 | 36×10° | 14 | 76 | 365 | 2000 | 3 | 7.5 | ZKLDF150 |
2 | M8 | 3 | 48×7.5° | 14 | 112 | 550 | 1600 | 4.5 | 11 | ZKLDF200 |
2 | M12 | 3 | 36×10° | 34 | 155 | 920 | 1200 | 7.5 | 22 | ZKLDF260 |
2 | M12 | 3 | 36×10° | 34 | 165 | 1110 | 1000 | 11 | 28 | ZKLDF325 |
2 | M12 | 3 | 48×7.5° | 34 | 214 | 1470 | 800 | 16 | 39 | ZKLDF395 |
2 | M12 | 3 | 48×7.5° | 34 | 255 | 1860 | 700 | 21 | 50 | ZKLDF460 |
3 | M12 | 6 | 48×7.5° | 68 | 395 | 3180 | 500 | 40 | 82 | ZKLDF580 |