Ningbo Kent Bearing Co., Ltd
Ningbo Kent Bearing Co., Ltd
Add to Cart
6905 6905-2RS Rubber Bearing Double Side Dustproof Z4 Silent Ball Bearing for Power Tools Industial Machinery
The 6905 2RS Bearing is a high-performance, double-sided rubber-sealed deep groove ball bearing designed for demanding industrial applications. This bearing features double rubber seals (2RS), providing excellent protection against dust, debris, and moisture while retaining lubrication. With a Z4 precision grade, the 6905 2RS ensures smooth operation, low noise, and high rotational accuracy, making it ideal for industrial machinery operating in harsh environments. Its robust construction and dustproof design make it a reliable choice for applications requiring durability and precision.
Double Rubber Seals (2RS): Protects against contamination and retains lubricant for extended performance.
Z4 Precision Grade: Ensures smooth and quiet operation with minimal vibration.
High-Speed Capability: Designed for efficient operation at high rotational speeds.
Durable Construction: Made from high-quality chrome steel for excellent wear resistance.
Low Maintenance: Sealed design reduces the need for frequent relubrication.
Dustproof Design: Ideal for industrial environments with high levels of dust and debris.
Versatility: Suitable for both radial and axial load applications.
| Parameter | Measurement (mm) |
|---|---|
| Inner Diameter (ID) | 25 mm |
| Outer Diameter (OD) | 42 mm |
| Width (W) | 9 mm |
High Precision: Z4 precision ensures minimal vibration and noise, making it ideal for precision industrial machinery.
Dustproof Protection: The double rubber seals (2RS) ensure reliable performance in dusty or dirty environments.
High-Speed Performance: Designed for smooth operation at high rotational speeds.
Durability: High-quality materials and construction provide excellent resistance to wear and tear.
Low Friction: Designed for efficient operation, reducing energy consumption and heat generation.
Low Maintenance: Sealed design minimizes the need for frequent relubrication, reducing downtime and costs.
Industrial Machinery: Used in pumps, compressors, and gearboxes requiring high precision and durability.
Electric Motors: Suitable for small to medium-sized motors in industrial equipment.
Conveyor Systems: Ideal for conveyor rollers and other machinery exposed to dust and debris.
Agricultural Equipment: Used in machinery exposed to dust, dirt, and moisture.
Food Processing Equipment: Suitable for machinery in the food and beverage industry due to its contamination protection.
Material Handling: Used in equipment for handling bulk materials in industrial settings.
Technical Parameters of P4 Precision 69 Series Ball Bearings:
Customization Welcomed:
We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.
We can custom your packaging according to your design.
All copyright owned by clients and we promised don't disclose any information.
Packing and Shipping:
The deep groove ball bearings will be securely packaged individually, or tube packing or packed as customization packing
Shipping method is negotiable.
Other Technical Data of Bearings
ABEC-5 Tolerance Class ABEC-5 (P5)
| Inner Ring | Tolerance in um/s | |||||||||||
| d mm | Δdmp | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sis3) | ΔBs | Vbs | ||||
| 9 | 0,1,2,3,4 | |||||||||||
| over | including | high | low | max | 3 | max | max | max | High | Low | max | |
| 1)0.6 | 2.5 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
| 2.5 | 10 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
| 10 | 18 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -80 | 5 |
| 18 | 30 | 0 | -6 | 6 | 5 | 3 | 4 | 8 | 8 | 0 | -120 | 5 |
| 30 | 50 | 0 | -8 | 8 | 6 | 4 | 5 | 8 | 8 | 0 | -120 | 5 |
| 50 | 80 | 0 | -9 | 9 | 7 | 5 | 5 | 8 | 8 | 0 | -150 | 6 |
| Outer Ring | Tolerance in um/s | |||||||||||
| D mm | Δdmp | Vdp²)Diameter Series | Vdmp | Kia | SD4) SD15) | Sea4)5) | ΔBs | Vbs | ||||
| 9 | 0,1,2,3,4 | |||||||||||
| over | including | high | low | max | max | max | max | High | Low | max | ||
| 1)2.5 | 6 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 | 5 | ||
| 6 | 18 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 | 5 | ||
| 18 | 30 | 0 | -6 | 6 | 5 | 3 | 6 | 8 | 8 | 5 | ||
| 30 | 50 | 0 | -7 | 7 | 5 | 4 | 7 | 8 | 8 | 5 | ||
| 50 | 80 | 0 | -9 | 9 | 7 | 5 | 8 | 8 | 10 | 6 | ||
| 80 | 120 | 0 | -10 | 10 | 8 | 5 | 10 | 9 | 11 | 8 | ||
| 120 | 150 | 0 | -11 | 11 | 8 | 6 | 11 | 10 | 13 | 8 | ||
ABEC-7 Tolerance Class ABEC-7 (P4)
| Inner Ring | Tolerance in um/s | ||||||||||||||
| d mm | Δdmp | Δds | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs | ||||||
| 7,8,9 | 1,7,2,3,4 | ||||||||||||||
| over | including | high | low | high | low | max | max | max | max | max | High | low | Low | max | |
| 1)0.6 | 2.5 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
| 2.5 | 10 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
| 10 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -80 | -80 | 2.5 |
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 3 | 4 | 4 | 0 | -120 | -120 | 2.5 |
| 30 | 50 | 0 | -6 | 0 | -5 | 6 | 4 | 3 | 4 | 4 | 4 | 0 | -120 | -120 | 3 |
| 50 | 80 | 0 | -7 | 0 | -5 | 7 | 5 | 3.5 | 4 | 5 | 5 | 0 | -150 | -150 | 4 |
| Outer Ring | Tolerance in um/s | ||||||||||||||
| D mm | Δdmp | Δds | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs | ||||||
| 7,8,9 | 1,7,2,3,4 | ||||||||||||||
| over | including | high | low | high | low | max | max | max | max | max | High | low | max | ||
| 1)2.5 | 6 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | Identical to ΔBs and VBs of inner ring of same bearing | 2.5 | ||
| 6 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | 2.5 | |||
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 4 | 4 | 5 | 2.5 | |||
| 30 | 50 | 0 | -6 | 0 | -6 | 6 | 5 | 3 | 5 | 4 | 5 | 2.5 | |||
| 50 | 80 | 0 | -7 | 0 | -7 | 7 | 5 | 3.5 | 5 | 4 | 5 | 3 | |||
| 80 | 120 | 0 | -8 | 0 | -8 | 8 | 6 | 4 | 6 | 5 | 6 | 4 | |||
| 120 | 150 | 0 | -9 | 0 | -9 | 9 | 7 | 5 | 7 | 5 | 7 | 5 | |||
FAQ:
1.Q:Are you a factory or trading company?
A:Kent Bearing is specialized in manufacturing and exporting bearings, and we have our own factory and warehouse.
2.Q:Can I get some samples and do you offer free samples?
A:Yes, sure, Kent Bearing are honored to offer you samples.
3.Q: How about the shipping?
A: We can arrange the shipment or you may have the forwarder.
4.Q: Could you tell me the material of our bearing?
A: We have chrome steel, and stainless steel, ceramic and plastic material
5.Q: Can we get support if we have our own market position?
A: Please inform us detailed information about your market,we will discuss
and propose helpful suggestion for you and to find the best solution for you.