Thin section 68 and 69 series open style

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Thin Section Bearings

Thin section bearings are precision-engineered components designed to operate in applications where space constraints are critical.

These bearings offer a compact, lightweight solution without sacrificing performance, making them ideal for industries such as robotics, aerospace, medical equipment, and more.

At ZMS, we specialize in supplying high quality thin section bearings in China tailored to meet diverse application needs. Whether you require standard series or custom designs, we can fullfil the requirements.

Product series

CT Bearings

Bike Headset Bearings

Thin Section Bearing 67, 68, 69 Series

Flexible Bearings

Compact Design

Thin section bearings are engineered with an ultra-thin wall, allowing them to fit into compact spaces where traditional bearings would be too bulky or impractical.

High Precision

ZMS manufactures high precision thin section bearings from P0, P6, P5 and best to P4.

Lightweight

Due to their design and materials used (such as thin rings and lightweight materials), thin section bearings are significantly lighter compared to conventional bearings of similar size, which is advantageous in weight-sensitive applications.

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Core product

Thin section bearings are the core product of ZMS.
We have very advantage in production and supply. We can control well the deformation and keep good runout and roundness that is key of thin section bearings. With our mature craft, using special heat treatment, we supply thin section bearings in high quality.

Technical Support

ZMS supply full technical support for customers by supply drawing and answer concers.
From material choosing of stainless or chrome steel, and cage from brass cage to steel to Nylon.
From structure from C type deep groove ball bearing to A-type angular contact ball bearing to X point four point angular contact bearing in full sizes in metric and inch series.

Custom Design

ZMS offer custom production of slim bearings or ultra thin section bearings to meet specific dimension, structure, material, clearance, lubrication based on your actual requirements.

Factory View

Thin section bearing manufacturing equipment

Frequently Asked Question

What are the different types of thin section bearings?

There will be open style or sealed type for Kaydon series thin section bearings in metric and inch series.

Type C (Radial Contact): Radial contact ball bearings
Type A (Angular Contact): Angular contact ball bearings
Type X (Four-Point Contact): Four-point contact ball bearings

There will be deep groove ball bearings with thin wall not cross section.

67 series
68 series
69 series

There will be also thin section angular contact ball bearings

718 series
719 series

What is the precision of thin section bearings?

There will be P0, P6, P5, P4 and even P2 precision.

What is the material of thin section bearings?

Thin section bearings normally using Chrome steel (Gcr15, 52100) to produce. But also can use stainless steel like 440C for corrosion requirements.

What is the difficult in production for thin section bearings?

The biggest challenge is how to control well of the deformation to keep good roundness.

What is the max. outer diameter of thin section bearings we can supply?

At present, the max. Diameter will be 2m for thin section bearings.

Can ZMS custom made for thin section bearings?

We can custom made thin section bearings from choosing, design, and manufacture the whole process as customers application.

Can ZMS supply samples of thin section bearings?

For standard modals, and when have stocking, we would like to send sample for free test if the value is small.

Custom made thin sections bearings or no stocking modals, normally will need MOQ.

MOQ will be different based specific modals. Please contact us for specific consult.

Maximize Payload, Minimize Envelope

In advanced robotics, aerospace, and medical imaging equipment (like CT scanners), every gram and millimeter matters. ZMS Thin Section Bearings are engineered to solve the toughest spatial constraints. By significantly reducing the cross-section of the bearing compared to standard ISO bearings, they allow you to downsize your overall system design, dramatically reduce weight, and increase the payload capacity of your application without sacrificing rotational precision.

Direct Cross-Reference to Kaydon Reali-Slim

We understand that engineering a new system around a proprietary bearing size is costly. ZMS provides premium thin ring bearings that are dimensionally interchangeable with industry-standard sizes, including the popular Kaydon Reali-Slim® series (such as KAA, KA, KB, KC, KD, KF, and KG series). Whether you need an open type or a sealed version, we offer a seamless, high-performance drop-in replacement with shorter lead times.

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If you want to learn more about bearings product, please feel free to contact us.