Polyurethane Coated Bearing

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Standard

GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN/VDEh,DIN/VDEh

Inner diameter

1.5mm-25mm

Outer diameter

7mm-80mm

Width

3mm-36mm

Dynamic radial load

2lbf-1888lbf

Coated material

NDI/POM Polyurethane

Static load rating,radial

1lbf-1059lbf

MAX speed

7.8-78 (X1000 rpm)

Brand

QIBR/OEM/Neutral

Polyurethane Coated Bearing

Filters

NO. Product Product Number Bore Inner ring type Outer diameter (D) Seal type Shield material Width
1 6817 6817 2rs 1.5 mm Normal 7 mm Sealed NBR 4 mm
2 6818 6818 2rs 1.5 mm Normal 8 mm Sealed NBR 4 mm
3 6203 6203 2rs 17 mm Normal 50 mm Sealed NBR 18 mm
4 6203 6203 2rs 17 mm Normal 60 mm Sealed NBR 18 mm
5 6903 6903 2rs 17 mm Normal 40 mm Sealed NBR 10 mm
6 683 683 2rs 3mm Normal 10 mm Sealed NBR 3 mm
7 683 683 2rs 3 mm Normal 12 mm Sealed NBR 3 mm
8 693 693 2rs 3 mm Normal 10 mm Sealed NBR 4 mm
9 693 693 2rs 3 mm Normal 10 mm Sealed NBR 5 mm
10 693 693 2rs 3 mm Normal 12 mm Sealed NBR 4 mm
11 604 604 2rs 4 mm Normal 16 mm Sealed NBR 5 mm
12 624 624 2rs 4 mm Normal 15 mm Sealed NBR 5 mm
13 624 624 2rs 4 mm Normal 18 mm Sealed NBR 5 mm
14 624 624 2rs 4 mm Normal 30 mm Sealed NBR 5 mm
15 684 684 2rs 4 mm Normal 11 mm Sealed NBR 4 mm
16 684 684 2rs 4 mm Normal 12 mm Sealed NBR 4 mm
17 684 684 2rs 4 mm Normal 12 mm Sealed NBR 6 mm
18 684 684 2rs 4 mm Normal 13 mm Sealed NBR 4 mm
19 684 684 2rs 4 mm Normal 13 mm Sealed NBR 8 mm
20 684 684 2rs 4 mm Normal 14 mm Sealed NBR 6 mm
21 605 605 2rs 5 mm Normal 18 mm Sealed NBR 5 mm
22 605 605 2rs 5 mm Normal 19 mm Sealed NBR 7 mm
23 605 605 2rs 5 mm Normal 21 mm Sealed NBR 8 mm
24 625 625 2rs 5 mm Normal 20 mm Sealed NBR 5 mm
25 625 625 2rs 5 mm Normal 22 mm Sealed NBR 5 mm
26 625 625 2rs 5 mm Normal 22 mm Sealed NBR 7 mm
27 625 625 2rs 5 mm Normal 22 mm Sealed NBR 9 mm
28 625 625 2rs 5 mm Normal 24 mm Sealed NBR 5 mm
29 625 625 2rs 5 mm Normal 25 mm Sealed NBR 9 mm
30 685 685 2rs 5 mm Normal 16 mm Sealed NBR 5 mm
31 685 685 2rs 5 mm Normal 16 mm Sealed NBR 8 mm
32 685 685 2rs 5 mm Normal 17 mm Sealed NBR 10 mm
33 695 695 2rs 5 mm Normal 18 mm Sealed NBR 5 mm
34 606 606 2rs 6 mm Normal 21 mm Sealed NBR 9 mm
35 606 606 2rs 6 mm Normal 22 mm Sealed NBR 6 mm
36 606 606 2rs 6 mm Normal 24 mm Sealed NBR 6 mm
37 626 626 2rs 6 mm Normal 24 mm Sealed NBR 24 mm
38 626 626 2rs 6 mm Normal 25 mm Sealed NBR 18 mm
39 626 626 2rs 6 mm Normal 26 mm Sealed NBR 10 mm
40 626 626 2rs 6 mm Normal 26 mm Sealed NBR 12 mm
41 626 626 2rs 6 mm Normal 26 mm Sealed NBR 8 mm
42 626 626 2rs 6 mm Normal 28 mm Sealed NBR 13 mm
43 626 626 2rs 6 mm Normal 28 mm Sealed NBR 6 mm
44 626 626 2rs 6 mm Normal 30 mm Sealed NBR 10 mm
45 626 626 2rs 6 mm Normal 30 mm Sealed NBR 12 mm
46 626 626 2rs 6 mm Normal 30 mm Sealed NBR 9 mm
47 626 626 2rs 6 mm Normal 33 mm Sealed NBR 7 mm
48 626 626 2rs 6 mm Normal 35 mm Sealed NBR 14 mm
49 626 626 2rs 6 mm Normal 40 mm Sealed NBR 10 mm
50 696 696 2rs 6 mm Normal 18 mm Sealed NBR 7 mm
51 696 696 2rs 6 mm Normal 19 mm Sealed NBR 5 mm
52 696 696 2rs 6 mm Normal 20 mm Sealed NBR 5 mm
53 696 696 2rs 6 mm Normal 20 mm Sealed NBR 6 mm
54 696 696 2rs 6 mm Normal 20 mm Sealed NBR 8 mm
55 696 696 2rs 6 mm Normal 22 mm Sealed NBR 5 mm
56 696 696 2rs 6 mm Normal 22 mm Sealed NBR 7 mm
57 608 608 2rs 8 mm Normal 24 mm Sealed NBR 7 mm
58 608 608 2rs 8 mm Normal 26 mm Sealed NBR 7 mm
59 608 608 2rs 8 mm Normal 28 mm Sealed NBR 10 mm
60 608 608 2rs 8 mm Normal 28 mm Sealed NBR 7 mm
61 608 608 2rs 8 mm Normal 28 mm Sealed NBR 8 mm
62 608 608 2rs 8 mm Normal 30 mm Sealed NBR 11 mm
63 608 608 2rs 8 mm Normal 30 mm Sealed NBR 7 mm
64 608 608 2rs 8 mm Normal 30 mm Sealed NBR 9 mm
65 608 608 2rs 8 mm Normal 32 mm Sealed NBR 10 mm
66 608 608 2rs 8 mm Normal 32 mm Sealed NBR 12 mm
67 608 608 2rs 8 mm Normal 35 mm Sealed NBR 12 mm
68 608 608 2rs 8 mm Normal 35 mm Sealed NBR 15 mm
69 608 608 2rs 8 mm Normal 35 mm Sealed NBR 18 mm
70 608 608 2rs 8 mm Normal 36 mm Sealed NBR 10 mm
71 608 608 2rs 8 mm Normal 40 mm Sealed NBR 11 mm
72 608 608 2rs 8 mm Normal 40 mm Sealed NBR 13 mm
73 608 608 2rs 8 mm Normal 45 mm Sealed NBR 14 mm
74 608 608 2rs 8 mm Normal 48 mm Sealed NBR 16 mm
75 628 628 2rs 8 mm Normal 45 mm Sealed NBR 8 mm
76 638 638 2rs 8 mm Normal 40 mm Sealed NBR 20 mm
77 638 638 2rs 8 mm Normal 45 mm Sealed NBR 20 mm
78 688 688 2rs 8 mm Normal 22 mm Sealed NBR 5 mm
79 688 688 2rs 8 mm Normal 22 mm Sealed NBR 7 mm
80 6000 6000 2rs 10 mm Normal 30 mm Sealed NBR 11 mm
81 6000 6000 2rs 10 mm Normal 32 mm Sealed NBR 10 mm
82 6000 6000 2rs 10 mm Normal 34 mm Sealed NBR 11 mm
83 6000 6000 2rs 10 mm Normal 35 mm Sealed NBR 11 mm
84 6000 6000 2rs 10 mm Normal 38 mm Sealed NBR 10 mm
85 6000 6000 2rs 10 mm Normal 40 mm Sealed NBR 10 mm
86 6200 6200 2rs 10 mm Normal 36 mm Sealed NBR 13 mm
87 6200 6200 2rs 10 mm Normal 36 mm Sealed NBR 16 mm
88 6200 6200 2rs 10 mm Normal 40 mm Sealed NBR 11 mm
89 6200 6200 2rs 10 mm Normal 40 mm Sealed NBR 12 mm
90 6200 6200 2rs 10 mm Normal 50 mm Sealed NBR 12 mm
91 6200 6200 2rs 10 mm Normal 60 mm Sealed NBR 12 mm
92 6900 6900 2rs 10 mm Normal 25.4 mm Sealed NBR 7 mm
93 6900 6900 2rs 10 mm Normal 26 mm Sealed NBR 10 mm
94 6001 6001 2rs 12 mm Normal 40 mm Sealed NBR 13 mm
95 6001 6001 2rs 12 mm Normal 45 mm Sealed NBR 14 mm
96 6201 6201 2rs 12 mm Normal 38 mm Sealed NBR 10 mm
97 6201 6201 2rs 12 mm Normal 40 mm Sealed NBR 18 mm
98 6201 6201 2rs 12 mm Normal 50 mm Sealed NBR 20 mm
99 6901 6901 2rs 12 mm Normal 28 mm Sealed NBR 8 mm
100 6901 6901 2rs 15 mm Normal 40 mm Sealed NBR 12 mm

Features and advantages of QIBR polyurethane coated bearing

The QIBR polyurethane coated bearing solves several key issues across various fields, mainly reflected in the following aspects:

1. Wear resistance

The QIBR polyurethane coated bearing has excellent wear resistance, which reduces wear over long-term operation and extends its service life, especially suitable for high-load or high-friction environments.

2. Shock absorption and noise reduction

The QIBR polyurethane coated bearing has good elasticity and buffering properties, effectively absorbing vibrations and reducing noise.

3. Oil and chemical corrosion resistance

The QIBR polyurethane coated bearing has good resistance to oils, solvents, and various chemicals.

4. Impact resistance

The high elasticity of the QIBR polyurethane coated bearing gives it good impact resistance, making it suitable for environments with impact loads.

 Performance improvements and solutions for QIBR polyurethane coated bearing

1. Enhanced wear resistance

By adding reinforcing materials such as carbon black, ceramics, and metal powders, the hardness and wear resistance of polyurethane can be improved, enabling it to maintain stable performance under higher loads and long-term use.

2. Improved oil and chemical resistance

Depending on the bearing’s operating environment, polyurethane formulas with stronger chemical corrosion and oil resistance can be selected, improving the bearing's lifespan in chemical and oil-contaminated environments.

3. Optimization of polyurethane layer thickness

The thickness of the polyurethane layer directly affects the performance of the outsourcing polyurethane bearing. An appropriate thickness can improve the bearing's impact resistance and wear resistance. However, too thick a polyurethane layer may reduce the bearing's rigidity and affect performance. A reasonable design of the polyurethane layer thickness can meet the requirements for shock absorption and wear resistance while maintaining the bearing's load capacity and operational stability.

4. Inner and outer ring structure optimization

By optimizing the geometric shapes and dimensions of the inner and outer rings, the polyurethane layer can be evenly stressed, preventing local over-wear.

Main application areas of QIBR polyurethane coated bearing 

1. Automotive industry

Polyurethane bearings are widely used in the automotive industry, especially in suspension systems, drive systems, and brake systems. Due to the polyurethane material's ability to absorb vibrations, reduce noise, and provide strong durability, it is used in: automotive wheel axles and suspension systems, engine and transmission components, wheels, and brake systems.

2. Mechanical engineering

In mechanical engineering, polyurethane bearings are used in various mechanical equipment requiring wear resistance and high load capacity. Their elasticity and toughness enable them to operate under heavy loads and high-impact conditions.

3. Sports equipment

Polyurethane bearings are commonly used in various sports equipment and tools, especially in components that require wear resistance and impact resistance. These include: skateboards, skis, rollerblades, and other sporting goods.

4. Aerospace

In the aerospace industry, polyurethane bearings are used in some aircraft components due to their excellent high-temperature and wear-resistant properties. They can withstand high-speed operation and extreme environmental loads.

5. Robotics and automation

Polyurethane bearings are also widely used in robotics and automation equipment. They can reduce friction and noise while ensuring high-precision and high-speed motion, thus extending the service life of the equipment.