604ZZ P6 Grade Deep Groove Ball Bearing for Precision Machinery
The 604ZZ P6 grade bearing that is widely used in the field of precision instruments.
Item No :
604ZZSize (d*D*B) :
4x12x4mmMaterial :
Chrome steel Gcr15, etc.Lead Time :
3-5 daysWeight :
0.002KGMOQ :
100 pcs604ZZ P6 Grade Deep Groove Ball Bearing for Precision Machinery
⚙️Basic structure composition:
This bearing is mainly composed of five parts: inner ring, outer ring, steel balls, cage, and double-sided dust-proof covers. The inner ring fits tightly with the shaft and rotates synchronously with the shaft; the outer ring is in contact with the bearing housing or installation hole and usually remains stationary; the steel balls act as rolling elements, placed between the rolling surfaces of the inner and outer rings, converting sliding friction into rolling friction to reduce running resistance; the cage is made of engineering plastic or steel plate and is used to evenly separate the steel balls to prevent direct friction between the steel balls, which could cause wear and heat generation; the double-sided metal covers are fixed on the inner ring or outer ring through stamping process, forming a closed space to protect the internal core components.
| Item No. | 604ZZ |
| Branding | Famous brand/RMO/Neutral/OEM |
| Sealing | OPEN, ZZ , 2RS |
| Material | Stainless steel (420 440C 304 316), chrome steel Gcr15,carbon steel, hybrid ceramic, full ceramic. |
| Lead Time | 3-5 days |
| Precision | p0 p6 p5 p4 |
| Clearance | C2 C0 C3 C4 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Cage material | Steel, nylon, copper |
| Shipping Port | GUANGZHOU, NINGBO, SHANGHAI |
| Payment | 100% T/T, or 30% T/T In Advance ,70% T/T After Finished Production |
Precision advantage (P6 level core characteristic)
The P6 grade is an important classification for bearing accuracy, lying between the ordinary accuracy (P0 grade) and the high accuracy (P5, P4 grades). This high level of accuracy means that when the bearing rotates at high speed, the radial and axial movement of the shaft is extremely small, which can effectively enhance the transmission accuracy and stability of the equipment, and reduce noise and additional wear caused by vibration.
Friction characteristics and bearing capacity
The 604ZZ P6 grade bearing has an extremely low friction coefficient during operation (typically ranging from 0.001 to 0.003), and has low starting resistance. In terms of bearing performance, its radial basic rated dynamic load is approximately 2.2 KN, and the radial basic rated static load is approximately 0.98 KN (the specific values may vary slightly due to the manufacturer's materials and processes).
Sealing and life performance
The double-sided iron cover (ZZ) structure enables the bearing to have excellent dust-proof and water-proof capabilities, and can adapt to a working environment with a temperature range of -20℃ to 120℃ (under normal grease lubrication conditions). In scenarios with slight dust such as textile machinery and office equipment, its service life is extended by more than 30% compared to open-type bearings.
| Model No. | d | D | H | m |
| 602-2Z | 2 mm | 7 mm | 3.5 mm | 1 g |
| 604-2Z | 4 mm | 12 mm | 4 mm | 2 g |
| 605-2Z | 5 mm | 14 mm | 5 mm | 4 g |
| 606-2Z | 6 mm | 17 mm | 6 mm | 6 g |
| 607-2Z | 7 mm | 19 mm | 6 mm | 8 g |
| 608-2Z | 8 mm | 22 mm | 7 mm | 12 g |
| 609-2Z | 9 mm | 24 mm | 7 mm | 16 g |
The 604ZZ P6 grade bearing is widely used in small equipment that has certain requirements for rotational accuracy and reliability. Such as small stepping motors, printers, small diagnostic instruments, high-end remote control vehicles, pressure gauges, etc.
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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