What is a ZKLDF thrust angular contact ball bearing?

A ZKLDF bearing is a high-precision turntable bearing designed for rotary applications requiring high rigidity, low friction, and accurate positioning. Its bidirectional angular contact structure allows it to accommodate axial and radial loads as well as tilting moments.

What is the contact angle of ZKLDF bearings?

ZKLDF thrust angular contact ball bearings typically use a 60° contact angle. This configuration provides high axial load capacity and tilting rigidity while maintaining smooth and precise rotary motion.

What loads can ZKLDF turntable bearings support?

ZKLDF bearings are designed to accommodate axial loads in both directions, radial loads, and tilting moments. The appropriate bearing size should be selected according to the actual load magnitude, load distribution, rotational speed, and required service life.

Are ZKLDF bearings suitable for high-speed applications?

Yes. The ball-bearing design and optimized internal structure make ZKLDF bearings suitable for relatively high-speed rotary applications. They are commonly considered for CNC rotary tables, machine tools, grinding equipment, and other precision rotary systems.

Can PRS provide ZKLDF bearings for customized applications?

Yes. PRS can evaluate specific application requirements and provide suitable turntable bearing configurations for different equipment designs. Customers can provide dimensional requirements, load conditions, speed, accuracy requirements, and operating environment for technical evaluation.

How can I get a quotation for ZKLDF turntable bearings?

Send PRS the required bearing model or key application parameters, such as bore diameter, load, rotational speed, accuracy, and operating conditions. Our technical team can help confirm the appropriate specification and provide a quotation.

ZKLDF Thrust Angular Contact Ball Turntable Bearings

ZKLDF thrust angular contact ball bearings are high-precision turntable bearings designed for applications requiring high rotational accuracy, low friction, high rigidity, and reliable performance under combined loads. The series uses a bidirectional 60° angular contact design with two rows of steel balls, allowing the bearing to accommodate radial loads, axial loads in both directions, and tilting moments within a compact rotary table bearing structure.

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ZKLDF Thrust Angular Contact Ball Turntable Bearings Overview

The ZKLDF series of thrust-angular contact ball bearings comprises an integral outer ring, two inner rings, and two sets of ball-and-cage assemblies, featuring a 60° contact angle. Both the outer and inner rings are equipped with mounting holes, facilitating secure installation via connecting bolts; these bolts also ensure the bearing remains intact during installation, transport, and handling.

ZKLDF series rotary table bearings feature sealing covers on both sides to prevent the ingress of external contaminants and the leakage of internal lubricant.

These bearings are lubricated with a complex barium-based grease and allow for relubrication via oil holes located on the outer ring.

Designed with a bidirectional 60° contact angle and a double-row ball configuration, ZKLDF series bearings can accommodate radial loads, bidirectional axial loads, and tilting moments. Their specially designed brass cages offer high strength, albeit with higher frictional torque; consequently, this series is particularly well-suited for applications requiring ultra-high speeds, continuous long-term operation, and high levels of rigidity and precision.

Features & Benefits

STEP 1

Bidirectional 60° Angular Contact Design

The ZKLDF series adopts a 60° contact angle in both directions, providing a balanced structure for combined loading conditions. This configuration enables the bearing to support radial loads, bidirectional axial loads, and overturning moments while maintaining high rotational rigidity.

STEP 2

High-Speed, Low-Friction Performance

Compared with roller-based rotary table bearing designs, the angular contact ball configuration is optimized for high-speed rotation and low friction. The brass cage provides strength and controlled ball guidance, making the ZKLDF series suitable for demanding continuous-operation applications.

STEP 3

High Rigidity and Rotational Accuracy

ZKLDF bearings are developed for precision rotary applications where axial stiffness, tilting rigidity, and positioning accuracy are important. Their compact integrated structure helps maintain stable rotational performance under combined operating loads.

STEP 4

Ready-to-Mount Integrated Structure

The bearing consists of an integral outer ring, two inner rings, and two sets of steel balls and cage assemblies. Mounting holes are incorporated into the inner and outer rings, allowing the bearing to be secured directly with connecting bolts and simplifying integration into rotary table assemblies.

Available Models & Specifications

Click on any part number to view detailed CAD drawings and download PDF specifications.

Part Number	Bore (d)	Outer (D)	Width (B)
ZKLDF100	100 mm	185 mm	38 mm
ZKLDF120	120 mm	210 mm	40 mm
ZKLDF150	150 mm	240 mm	40 mm
ZKLDF200	200 mm	300 mm	45 mm
ZKLDF260	260 mm	385 mm	55 mm

Key Features

ZKLDF bearings are particularly suitable for precision rotary equipment where high speed, combined-load capacity, and tilting rigidity are required.

CNC Rotary Tables: Supports accurate indexing and continuous rotation in precision machining applications.

Milling and Turning Centers: Provides stable rotary support for demanding machining operations.

Grinding and Honing Equipment: Suitable for applications requiring smooth rotation and high positioning accuracy.

Machine Tool Spindles and Rotary Axes: Supports high-speed rotary movements where low friction and rigidity are important.

Measurement and Testing Equipment: Provides controlled rotational movement for precision measurement systems.

Automation Equipment: Suitable for precision rotary mechanisms requiring compact installation and reliable long-term operation.

Why Choose PRS ZKLDF Turntable Bearings?

PRS focuses on precision turntable bearing solutions for machine tools, automation equipment, and other demanding rotary applications. We can support customers with model selection, dimensional requirements, load-condition evaluation, and customized bearing solutions.

Whether you need a standard ZKLDF turntable bearing or a bearing solution adapted to a specific rotary table, PRS can help match the bearing structure and specifications to your equipment requirements. Contact our engineering team for model selection, technical data, and quotation support.