If you've ever worked on compact automation equipment, indexing systems, or small linear motion mechanisms, there's a good chance you've already seen the CFS series somewhere inside the machine.

 

Available in SS440 and SS304 stainless steel versions depending on corrosion resistance and operating requirements.

 

CFS3, CFS4, and CFS5 miniature cam follower bearings are designed for applications where space is limited but smooth rolling movement and stable tracking still matter.

 

Compared with standard bearings, cam followers are built differently. Instead of mainly supporting shaft rotation, they are designed to follow tracks, cams, guide rails, or linear movement paths under repeated motion.

 

That's why they're commonly used in:

• compact automation systems
• electronic devices
• packaging mechanisms
• small indexing units
• guide track assemblies
• robotics and motion systems

The CFS miniature series is especially popular because it combines:

• compact size
• high rigidity
• threaded stud mounting
• relatively high load capacity for its size

which makes installation much easier compared with designing a separate shaft + bearing arrangement.

 

• Available Models

Model	Stud Diameter	Outer Diameter	Overall Length	Typical Application
CFS3	3 mm	6 mm	11.5 mm	Ultra-compact mechanisms
CFS4	4 mm	8 mm	15 mm	Small automation systems
CFS5	5 mm	10 mm	18 mm	Medium compact motion assemblies

Miniature CFS cam followers use needle roller construction with compact outer ring design.

 

• SS440 vs SS304 Stainless Steel

Material	Main Advantage	Typical Use
SS440	Higher hardness & wear resistance	Industrial motion systems
SS304	Better corrosion resistance	Food / humid environments

 

• Technical Specifications

 

Item	CFS3	CFS4	CFS5
Stud Diameter	3 mm	4 mm	5 mm
Outer Diameter	6 mm	8 mm	10 mm
Roller Width	4 mm	5 mm	6 mm
Total Length	11.5 mm	15 mm	18 mm
Thread Size	M3×0.5	M4×0.7	M5×0.8
Structure	Needle Roller	Needle Roller	Needle Roller
Mounting Type	Stud Type	Stud Type	Stud Type
Lubrication	Pre-greased	Pre-greased	Pre-greased

Technical dimensions are commonly standardized across miniature metric cam follower series. 

 

 

 

 

• CFS Series Miniature Metric Cam Follower Bearing Specifications

 

Model	Stud Diameter (d1)	Outer Diameter (D)	Roller Width (C)	Total Length (B)	Thread Size	Hex Socket	Dynamic Load Rating (Cr)	Static Load Rating (Cor)	Weight
CFS2	2 mm	5 mm	3 mm	9 mm	M2×0.4	1.5 mm	0.18 kN	0.13 kN	1.2 g
CFS3	3 mm	6 mm	4 mm	11.5 mm	M3×0.5	2 mm	0.29 kN	0.22 kN	2.5 g
CFS4	4 mm	8 mm	5 mm	15 mm	M4×0.7	2.5 mm	0.55 kN	0.45 kN	5 g
CFS5	5 mm	10 mm	6 mm	18 mm	M5×0.8	3 mm	0.88 kN	0.75 kN	9 g
CFS6	6 mm	13 mm	8 mm	23 mm	M6×1.0	4 mm	1.45 kN	1.30 kN	18 g
CFS8	8 mm	19 mm	11 mm	30 mm	M8×1.25	5 mm	2.85 kN	2.60 kN	42 g
CFS10	10 mm	22 mm	12 mm	36 mm	M10×1.25	6 mm	3.80 kN	3.50 kN	68 g
CFS12	12 mm	26 mm	15 mm	40 mm	M12×1.5	8 mm	5.20 kN	4.80 kN	105 g

Typical Applications

Compact Automation Equipment

Used in indexing systems and guide track movement.

Packaging Machinery

Suitable for repeated motion and compact cam mechanisms.

Electronic Devices

Miniature structure works well in tight assemblies.

Robotics & Linear Motion Systems

Provides smoother tracking and better rolling stability.

Medical & Precision Equipment

Common in lightweight precision movement mechanisms.

 

Reliable Cam Follower Bearing Supplier

• ISO9001 Certified | ROHS & CE Compliant
• OEM logo, customized packaging, and bulk supply are available.
• Need pricing, samples, or technical support?
• Send us your inquiry and we'll get back to you within 24 hours.

 

 

 

1. What is the difference between cam follower bearings and standard bearings?

Cam followers are designed for track rolling and cam motion, while standard bearings mainly support shaft rotation.

 

2. Why are needle rollers used inside CFS cam followers?

Needle rollers provide higher load capacity in a compact structure.

 

3. Are stainless steel versions available?

Yes, stainless steel miniature cam followers are available for humid or cleanroom environments.

 

4. Which model is better for compact automation systems?

CFS4 and CFS5 are the most common choices because they provide a good balance between size and rigidity.

 

5. Do these bearings come pre-lubricated?

Yes, standard models are usually supplied with grease lubrication.

 

6. What is the difference between SS440 and SS304?

SS440 offers better hardness and wear resistance, while SS304 provides stronger corrosion resistance for humid or clean environments.

 

7. Do you support OEM customization?

Yes, we support OEM logo, customized packaging, and bulk supply for industrial projects.

 

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