Stainless Thin Section Bearings for Compact Designs

Product	Bore	OD	Width	Material	Seal	Reference Price	RFQ
S6710-ZZ 50 x 62 x 6 mm Deep Groove Ball Bearing	50 mm	62 mm	6 mm	Stainless Steel	ZZ	On request	RFQ
S6709-ZZ 45 x 55 x 6 mm Deep Groove Ball Bearing	45 mm	55 mm	6 mm	Stainless Steel	ZZ	On request	RFQ
S6708-ZZ 40 x 50 x 6 mm Deep Groove Ball Bearing	40 mm	50 mm	6 mm	Stainless Steel	ZZ	On request	RFQ
S6707-ZZ 35 x 44 x 5 mm Deep Groove Ball Bearing	35 mm	44 mm	5 mm	Stainless Steel	ZZ	On request	RFQ
S6706-ZZ 30 x 37 x 4 mm Deep Groove Ball Bearing	30 mm	37 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S6705-ZZ 25 x 32 x 4 mm Deep Groove Ball Bearing	25 mm	32 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S6704-ZZ 20 x 27 x 4 mm Deep Groove Ball Bearing	20 mm	27 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S6703-ZZ 17 x 23 x 4 mm Deep Groove Ball Bearing	17 mm	23 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S6702-ZZ 15 x 21 x 4 mm Deep Groove Ball Bearing	15 mm	21 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S6701-ZZ 12 x 18 x 4 mm Deep Groove Ball Bearing	12 mm	18 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S6700-ZZ 10 x 15 x 4 mm Deep Groove Ball Bearing	10 mm	15 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S6710-2RS 50 x 62 x 6 mm Deep Groove Ball Bearing	50 mm	62 mm	6 mm	Stainless Steel	2RS	On request	RFQ
S6709-2RS 45 x 55 x 6 mm Deep Groove Ball Bearing	45 mm	55 mm	6 mm	Stainless Steel	2RS	On request	RFQ
S6708-2RS 40 x 50 x 6 mm Deep Groove Ball Bearing	40 mm	50 mm	6 mm	Stainless Steel	2RS	On request	RFQ
S6707-2RS 35 x 44 x 5 mm Deep Groove Ball Bearing	35 mm	44 mm	5 mm	Stainless Steel	2RS	On request	RFQ
S6706-2RS 30 x 37 x 4 mm Deep Groove Ball Bearing	30 mm	37 mm	4 mm	Stainless Steel	2RS	On request	RFQ
S6705-2RS 25 x 32 x 4 mm Deep Groove Ball Bearing	25 mm	32 mm	4 mm	Stainless Steel	2RS	On request	RFQ
S6704-2RS 20 x 27 x 4 mm Deep Groove Ball Bearing	20 mm	27 mm	4 mm	Stainless Steel	2RS	On request	RFQ
S6703-2RS 17 x 23 x 4 mm Deep Groove Ball Bearing	17 mm	23 mm	4 mm	Stainless Steel	2RS	On request	RFQ
S6702-2RS 15 x 21 x 4 mm Deep Groove Ball Bearing	15 mm	21 mm	4 mm	Stainless Steel	2RS	On request	RFQ
S6701-2RS 12 x 18 x 4 mm Deep Groove Ball Bearing	12 mm	18 mm	4 mm	Stainless Steel	2RS	On request	RFQ
S6700-2RS 10 x 15 x 4 mm Deep Groove Ball Bearing	10 mm	15 mm	4 mm	Stainless Steel	2RS	On request	RFQ

Stainless thin section bearings are used when a design needs a large bore, a compact cross section, and better corrosion resistance than standard bearing steel. They are often reviewed for space-limited rotating assemblies where a conventional bearing would add too much radial height or weight.

This collection is for buyers comparing stainless thin wall bearings by bore size, outside diameter, width, contact design, material, closure type, and application environment. If the project is mainly about compact envelope size, compare this page with thin section bearings. If corrosion exposure is the main reason for the search, also review stainless steel bearings and AISI 316 stainless steel bearings.

Stainless thin section bearings can be suitable for robotics, automation systems, instruments, inspection equipment, compact turntables, lightweight positioning mechanisms, and clean industrial machinery. The correct choice still depends on load direction, shaft and housing stiffness, fit, lubrication, speed, and contamination risk.

What Are Stainless Thin Section Bearings?

Stainless thin section bearings are thin wall ball bearings with a constant cross-section design. Unlike standard bearings that increase in width and height as bore size increases, thin section bearings maintain a slim and lightweight profile while supporting larger shaft diameters.

This compact structure helps reduce overall equipment weight and save installation space while still providing smooth rotational accuracy and stable running performance.

Thin section stainless bearings are commonly selected for applications requiring:

Advantages of Stainless Thin Section Bearings

Compact and Lightweight Design

Thin section bearings reduce the weight and size of rotating assemblies. Their slim bearing profile makes them ideal for robotics, semiconductor systems, lightweight automation equipment, and aerospace applications.

Corrosion Resistance

Stainless steel thin section bearings provide improved resistance to moisture, humidity, and mild corrosive environments compared with standard bearing steel. They are suitable for clean industrial systems and precision equipment operating in demanding conditions.

High Rotational Accuracy

Precision thin section bearings are designed for smooth running, low vibration, and stable rotational motion. This makes them suitable for high-accuracy positioning systems and compact precision machinery.

Low Friction Performance

The optimized thin wall design helps reduce rotational resistance and improve efficiency in high-speed and lightweight applications.

Types of Stainless Thin Section Bearings

Radial thin section bearings are designed primarily for radial loads while maintaining compact dimensions and smooth rotational performance.

Angular contact thin section bearings support combined radial and axial loads and are suitable for precision positioning systems and high-speed rotating assemblies.

Four-point contact thin section bearings can support radial, axial, and moment loads simultaneously. These bearings are widely used in robotics, rotary tables, and aerospace systems.

Stainless Steel Material Options

440C Stainless Steel

440C stainless steel thin section bearings offer high hardness, good wear resistance, and reliable precision performance for industrial and automation applications.

316 Stainless Steel

316 stainless steel provides stronger corrosion resistance for humid, marine, and chemical environments where anti-rust performance is important.

Ceramic hybrid thin section bearings combine stainless steel rings with ceramic balls to reduce friction, improve speed capability, and lower vibration levels.

Common Applications

Robotics and Automation

Thin section stainless bearings are widely used in robotic arms, robot joints, compact automation systems, and lightweight positioning mechanisms where reduced weight and compact dimensions are critical.

Medical Equipment

Medical and laboratory equipment often require compact precision bearings with smooth motion, corrosion resistance, and stable running accuracy.

Semiconductor and Optical Equipment

Thin section bearings are commonly used in semiconductor systems, inspection devices, optical instruments, and precision motion platforms requiring stable rotational accuracy.

Aerospace and Precision Machinery

The lightweight structure and compact design of stainless thin section bearings make them suitable for aerospace assemblies, radar systems, and advanced precision equipment.

How to Read the Bearing Dimensions

In the size chart above, d refers to the bore diameter, D refers to the outside diameter, and B refers to the bearing width. The ZZ type uses metal shields for lower friction and higher rotational speed, while the 2RS type uses rubber seals for better protection against dust and moisture.

How to Select Stainless Thin Section Bearings

Choose the Correct Bearing Type

Radial thin section bearings are suitable for radial loads, while angular contact and four-point contact bearings are preferred for combined axial and moment load applications.

Select the Proper Material

440C stainless steel is commonly selected for general precision industrial applications. 316 stainless steel is recommended for corrosive or humid environments. Ceramic hybrid designs are suitable for high-speed precision systems.

Consider Installation Space

Thin section bearings are ideal for compact equipment requiring lightweight rotating structures and large shaft diameters within limited installation space.

Confirm Environmental Conditions

For clean environments and higher speed applications, ZZ shielded bearings are commonly used. For dusty or humid environments, 2RS sealed bearings provide improved protection and grease retention.

Frequently Asked Questions

What are stainless thin section bearings used for?

They are commonly used in robotics, medical equipment, semiconductor systems, aerospace assemblies, optical instruments, rotary tables, and compact precision machinery where reduced weight and space-saving designs are important.

What is the difference between thin section bearings and standard ball bearings?

Thin section bearings use a much thinner cross-section while maintaining larger bore sizes. This allows for compact and lightweight mechanical designs without sacrificing rotational accuracy.

Why choose stainless steel thin section bearings?

Stainless steel thin section bearings provide improved corrosion resistance and are suitable for clean, humid, and precision industrial environments.

Can thin section bearings support axial loads?

Yes. Angular contact and four-point contact thin section bearings can support axial loads and moment loads in addition to radial loads.

Are stainless thin section bearings suitable for robotics?

Yes. Their lightweight structure, compact dimensions, and smooth rotational performance make them widely used in robotic arms and precision automation systems.

RFQ Checklist for Stainless Thin Section Bearings

For a practical review, include the bearing number, bore, outside diameter, width, preferred stainless material, contact design, seal or shield requirement, operating environment, speed range, load direction, and available installation space. If the bearing is part of a robot joint, compact turntable, or instrument, photos of the mounted position help confirm whether the limiting issue is cross section, corrosion exposure, or replacement envelope.

Do not reduce bearing section size only to save space without checking shaft support, housing stiffness, moment load, and mounting accuracy. A smaller cross section can be useful, but it should not be treated as a universal replacement for a standard bearing family.

Stainless Thin Section Bearings for Compact Designs