604ZZ Bearing

 

604ZZ miniature bearing, suitable for high-speed rotation, high temperature resistance of 180℃, can withstand high radial and axial loads. The 604ZZ aperture is 4 mm. Its outer diameter is 12 mm. 604ZZ bearing material is 52100 chrome steel, there are open without sealing ring, with iron sealing ring, butadiene rubber sealing ring three styles.

 

Metric deep groove ball bearing
Model	604zz
Inside Diameter (mm)	4
Outside Diameter (mm)	12
The width (mm)	OPEN		4
	ZZ		4
The Material	Inner ring	Gcr15	Testing standard	GB-T 305-1998
	Outer ring	Gcr15		GB-T 305-1998
	Steel ball	Gcr15		GB-T 305-1998
	Dust cover (ZZ)	SPCC/SUS		GB-T 305-1998
	Retainer (R)	SUS/MN		-
	Oil and grease	LY series		JB-T 8571-1997
	Resistance to high temperature (℃)	50~150		JB-T 8571-1997
Base rated load	Dynamic load Cr (N)		957
	Cor static load (N)		350
Application field	All kinds of micro motors, cooling fans, instruments and meters, printers, smart home, precision instruments, machinery and equipment, household appliances, medical equipment, fishing gear, mining machinery, elevator and accessories industry, precision machine tools and other fields
Our company can customize, develop and produce all kinds of non-standard bearings according to customer requirements.

 

 

Micromotor, medical instrument, vacuum pump, robot industry, home appliance automation and industry, etc

1. Material and Precautions: The 604zz bearing is commonly made of high-quality chrome steel (AISI 52100) for its inner and outer rings, as well as the balls. Chrome steel offers excellent hardness, wear resistance, and durability, making it suitable for various applications. When handling the bearing, it is essential to wear gloves to prevent contamination from oils and sweat on the skin, as this can affect the bearing's performance. Additionally, the bearing should be stored in a clean and dry environment to avoid corrosion or damage.

 

2. Recommended Usage Scenarios: The 604zz bearing is a miniature deep groove ball bearing with a 4mm inner diameter, 12mm outer diameter, and 4mm width. Due to its compact size and smooth operation, it finds applications in various industries, including robotics, 3D printers, electric motors, medical equipment, and precision instruments. Its small form factor and low friction make it ideal for applications that require high rotational speeds and moderate radial and axial loads.

 

3. Bearing Precision: The precision of the 604zz bearing refers to its dimensional accuracy and smoothness of operation. This bearing typically has an ABEC-5 precision rating, which ensures tight tolerances and consistent performance. The ABEC (Annular Bearing Engineering Committee) scale ranges from ABEC-1 to ABEC-9, with higher numbers indicating higher precision. The ABEC-5 rating of the 604zz bearing ensures reliable performance in most applications that don't require ultra-high precision.

 

4. Lubrication: Proper lubrication is crucial for the smooth operation and longevity of the 604zz bearing. It is recommended to use high-quality grease with a lithium or synthetic base. The grease should have good adhesion, temperature stability, and corrosion resistance. Applying the appropriate amount of grease is important—over-greasing can cause excess heat and friction, while insufficient lubrication can lead to premature wear. Regular maintenance and re-lubrication intervals should be followed as per the manufacturer's guidelines.

 

5. Installation and Fitting: To install the 604zz bearing, the shaft and housing should have the correct dimensions and tolerances. The bearing should be press-fitted onto the shaft with an appropriate interference fit to ensure a secure and stable connection. Care should be taken not to apply excessive force during installation, as it may damage the bearing or its components. It is recommended to use proper installation tools and techniques, such as bearing heaters or arbor presses, to achieve the correct fit.

 

6. Frequently Asked

Questions and Answers: Q: Can the 604zz bearing withstand high temperatures?

A: The standard chrome steel construction of the 604zz bearing allows it to operate in temperatures up to approximately 120°C (250°F). For higher temperature applications, specialized high-temperature bearings or alternative materials may be required.

 

Q: What is the maximum speed the 604zz bearing can handle?

A: The maximum speed of the 604zz bearing depends on several factors, including the lubrication, load, and application conditions. As a general guideline, this bearing can typically handle speeds up to 40,000 to 50,000 RPM (rotations per minute).

 

Q: Can the 604zz bearing support radial and axial loads?

A: Yes, the 604zz bearing can support both radial and axial loads. However, due to its miniature size, it has a limited load-carrying capacity compared to larger bearings. It is important to consider the expected loads in the specific application and ensure they fall within the bearing's rated capacity.

 

Q: How can I identify counterfeit or substandard 604zz bearings?

A: To avoid counterfeit bearings, it is recommended to purchase from authorized distributors or directly from reputable manufacturers. Look for proper branding, markings, and packaging consistency. Counterfeit bearings often exhibit poor performance, premature failure, or lack proper certification markings.

 

Q: Can the 604zz bearing be used in vacuum or cleanroom environments?

A: Yes, the 604zz bearing can be used in vacuum or cleanroom environments. However, special considerations should be taken regarding lubrication, material compatibility, and contamination prevention. It is advisable to consult the bearing manufacturer for specific recommendations in these applications.

 

In conclusion, the 604zz bearing is a miniature deep groove ball bearing made of chrome steel. It is suitable for various applications, requires proper lubrication, and should be installed with the correct fit. Its precision rating, lubrication type, and installation guidelines ensure optimal performance and longevity.

http://www.pdnbearing.com/