ZKLDF100 Bearings | Thrust Angular Contact Ball Bearing Supplier

In the realm of precision motion control, the demand for bearings that can simultaneously handle axial, radial, and tilting moments is relentless. The ZKLDF100 bearings represent a specialized class of bidirectional thrust angular contact ball bearings engineered to meet these exacting standards. With a 100 mm bore and a robust design featuring 60-degree contact angles, this bearing series delivers exceptional performance in high-speed rotary tables, milling heads, and precision measurement equipment. This article provides a detailed technical overview of the ZKLDF100, covering its structure, load capacity, installation nuances, and application-specific advantages.

1. What is ZKLDF100 Thrust Angular Contact Ball Bearing?

The ZKLDF100 is a double-direction thrust angular contact ball bearing, part of a series designed for high-precision rotary applications. Unlike conventional cross roller bearings, the ZKLDF series utilizes a distinct internal architecture that prioritizes high-speed capability and axial rigidity. The bearing consists of a single-piece outer ring, two inner rings, and two sets of steel balls with brass cages, all pre-assembled with sealing covers on both sides. This integrated design simplifies mounting and ensures consistent performance.

1.1 Structure Design of ZKLDF100 bearings

The structural configuration of the ZKLDF100 is central to its functionality. The bearing features a 60-degree contact angle, which allows it to accommodate combined loads effectively. The outer and inner rings are equipped with mounting holes, enabling direct bolt fixation to adjacent components without the need for additional flanges or pressure plates. This bolt-on design reduces assembly complexity and enhances system rigidity. The two-sided seals prevent contaminants from entering the raceway and retain the pre-filled lithium-based grease, ensuring long-term lubrication reliability.

1.2 Core Advantages of ZKLDF100

High Precision: Manufactured to tight tolerances for accurate rotational positioning.
Low Friction Torque: The optimized ball and cage design minimizes energy loss, with a friction torque of just 1.6 Nm.
High Speed Capability: Grease lubrication allows limiting speeds up to 5,000 r/min, significantly higher than comparable cross roller bearings.
Combined Load Support: Capable of bearing axial loads in both directions, radial loads, and tilting moments.
High Tilting Rigidity: The 60-degree contact angle provides excellent resistance to tilting, ensuring stable operation under eccentric loads.

2. ZKLDF100 Technical Specifications & Dimensions

The following tables present the complete technical parameters for the ZKLDF100 bearing, including dimensions, load ratings, and mounting data. These values are essential for engineers performing selection and integration calculations.

2.1 Main Dimension Data

Parameter	Value
Bore Diameter (d)	100 mm
Outer Diameter (D)	185 mm
Height (H)	38 mm
Outer Ring Contact Height (H1)	25 mm
Inner Ring Raceway Diameter (D1)	161 mm
Outer Ring Diameter (D2)	136 mm
Inner Ring Fixing Hole Pitch Circle (J)	112 mm
Outer Ring Fixing Hole Pitch Circle (J1)	170 mm
Weight	Approx. 3.84 kg

2.2 Load, Speed and Friction Parameters

Parameter	Value
Basic Dynamic Load Rating, Axial (Ca)	71,000 N (71 kN)
Basic Static Load Rating, Axial (C0a)	265,000 N (265 kN)
Fatigue Load Limit, Axial (Cua)	10,300 N
Limiting Speed (Grease Lubrication)	5,000 r/min
Axial Rigidity (Bearing Positioning)	1,200 N/µm
Radial Rigidity (Bearing Positioning)	350 N/µm
Tilting Rigidity (Bearing Positioning)	3,600 Nm/mrad
Friction Torque	1.6 Nm

2.3 Mounting Screw Hole Parameters

Parameter	Value
Mounting Screw Size	M5
Screw Tightening Torque	8.5 Nm
Number of Fixing Holes (Inner Ring)	12
Number of Fixing Holes (Outer Ring)	12

3. Typical Applications for ZKLDF100 Bearings

The unique combination of high axial rigidity, low friction, and high-speed capability makes the ZKLDF100 suitable for a range of demanding rotary applications.

High-Speed Rotary Tables: The bearing's high limiting speed of 5,000 r/min and excellent tilting rigidity ensure precise angular positioning in machine tool rotary tables, even under heavy cutting loads.
Milling, Grinding and Honing Heads: In these applications, the ZKLDF100 supports the spindle head while withstanding both axial and radial forces generated during machining. Its low friction torque reduces heat generation, contributing to thermal stability.
Precision Measurement & Testing Equipment: The bearing's high running accuracy and low friction are critical for equipment such as roundness testers and indexing tables, where minimal error motion is required.

4. Installation & Lubrication Notes for ZKLDF100 bearings

Proper installation and maintenance are vital to achieving the full performance potential of the ZKLDF100. The following guidelines address key considerations for engineers and technicians.

4.1 Screw Tightening Torque Requirement

The ZKLDF100 utilizes M5 mounting screws. To ensure uniform clamping force and prevent distortion of the bearing rings, it is recommended to tighten the screws to a torque of 8.5 Nm. Over-tightening can cause raceway deformation, while under-tightening may lead to slippage and fretting corrosion. A calibrated torque wrench should be used, and tightening should follow a diagonal sequence.

4.2 Grease Lubrication Guidance

The bearing is supplied pre-filled with a high-quality lithium-based grease. Under normal operating conditions, this initial lubrication is sufficient for the bearing's service life. However, in high-speed or high-temperature environments, re-lubrication may be necessary. The outer ring features lubrication holes that allow grease to be replenished without disassembly. It is important to use a compatible grease type to avoid mixing incompatible thickeners, which can degrade lubrication performance.

5. Our Service for ZKLDF100 Bearings

We provide comprehensive support for engineers and procurement specialists seeking reliable bearing solutions. Our services are designed to streamline your sourcing process and ensure you receive the correct product for your application.

5.1 Wholesale Supply & MOQ

We offer flexible wholesale supply options for the ZKLDF100, with low minimum order quantities to accommodate both prototype development and mass production. Our global logistics network ensures timely delivery.

5.2 OEM & ODM Customization Support

We understand that standard products may not fit every design. Our team supports OEM and ODM projects, including custom preload, special coatings, and modified dimensions. Contact us to discuss your specific requirements.

5.3 Available Datasheet & CAD Drawing Download

Detailed technical datasheets and 2D/3D CAD drawings are available upon request. These resources will assist you in integrating the ZKLDF100 into your mechanical design. Request ZKLDF100 price quote and datasheet today to get started.

7. FAQ about ZKLDF100 Bearings

Q1: What load can ZKLDF100 bearings take?

The ZKLDF100 can accommodate axial loads in both directions, radial loads, and tilting moments. Its basic dynamic axial load rating is 71 kN, and the basic static axial load rating is 265 kN.

Q2: What is the limiting speed of ZKLDF100 with grease lubrication?

With grease lubrication, the limiting speed of the ZKLDF100 is 5,000 r/min.

Q3: Can you supply customized ZKLDF100 thrust angular contact ball bearing?

Yes, we offer OEM and ODM customization support. This includes modifications to preload, coatings, and dimensions to meet specific application needs.

Q4: How to get ZKLDF100 price?

To request a ZKLDF100 price quote, simply contact us with your required quantity and any specific customization requests. We will respond promptly with a detailed quotation.