604-ZZ Metal Shielded Bearing 4x12x4mm for High-Speed Applications 

604 ZZ Micro Bearing - The "Heart" of High-Speed Motors

[Accurately match your device requirements ]
In the world of micro-mechanics, size is everything. The 604ZZ bearing, with its compact size of 4mm inner diameter, 12mm outer diameter and 4mm width, has become an indispensable core component in many precision devices. Nova Precision Bearing is well aware that you are not merely looking for a "bearing". What you need is stable rotational speed, ultra-low noise and extremely long continuous working time. This 604ZZ bearing was precisely designed to address these pain points.
[Core Parameters ]

[Technical hard Power - Why Choose Us ]

There are many 604ZZ bearings on the market, but few can truly achieve "quietness" and "durability". We address common usage pain points through the following technical details:

Ultimate Quietness Technology: To meet the strict noise requirements of consumer electronics and medical devices, we have subjected the raceways to ultra-precision grinding, keeping the operating noise below 20 decibels. No need to worry about the motor emitting a shrill whistling sound anymore.

High-speed Stability: Ordinary bearings tend to heat up and deform when rotating at over 10,000 revolutions per minute. Our 604ZZ bearings undergo special heat treatment, achieving a hardness of HRC 62-65. Combined with optimized internal clearance, the maximum speed can reach 30,000 revolutions per minute, ensuring smooth operation without stalling at high speeds.

Dust-proof and Water-proof Design: The double-sided ZZ type dust covers (metal) design not only effectively prevent dust and debris from entering the raceways but also securely lock in the internal lubricant. Compared to open bearings, the lifespan is extended by at least 30%.

[Application Scenarios - Solving Your Industry Pain Points ]
* climbing speed of the drone.  
*  Problem: The body is heavy and there is significant power loss.
* Solution: 604ZZ is lightweight and has low friction torque, which can significantly increase the endurance time and climbing speed of the drone
* Precision medical equipment (such as dental mobile phones
* Problem: High vibration occurs during high-speed rotation, which affects the accuracy of the surgery.
* Solution: High precision tolerance control is adopted to ensure zero vibration at high speed and prevent rusting even after high-temperature disinfection.
* Micro-reduction motor smart home
* Problem: Due to long-term continuous operation, the bearings are prone to wear and tear, which may lead to the equipment being scrapped.
*Solution: Excellent wear resistance, capable of operating continuously for over 10,000 hours, significantly reducing equipment maintenance costs.
[Commitment to quality]Every 604ZZ bearing sent out has undergone strict vibration testing and full dimensional inspection. We not only offer standard products, but also support customization based on your specific requirements (such as special clearances, special greases, nylon cages).
Make your device run faster, quieter and longer.