Needle Roller and Cage Assemblies

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Needle Roller and Cage Assemblies

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NO. Product Product Number Basic dynamic load rating Basic static load rating Diameter under rollers (Fw) Fatigue load limit (Pu) Mass Outside diameter of needle roller complement (Ew)
1 K K 3x5x7 TN 1.51 KN 1.34 KN 3 mm 0.134 KN 0.0003 kg 5 mm
2 K K 3x5x9 TN 1.68 KN 1.53 KN 3 mm 0.153 KN 0.0004 kg 5 mm
3 K K 4x7x7 TN 1.72 KN 1.32 KN 4 mm 0.137 KN 0.0005 kg 7 mm
4 K K 4x7x10 TN 2.29 KN 1.9 KN 4 mm 0.204 KN 0.0007 kg 7 mm
5 K K 5x8x8 TN 2.29 KN 2 KN 5 mm 0.212 KN 0.0007 kg 8 mm
6 K K 5x8x10 TN 2.92 KN 2.7 KN 5 mm 0.29 KN 0.0009 kg 8 mm
7 K K 6x9x8 TN 2.55 KN 2.36 KN 6 mm 0.25 KN 0.0008 kg 9 mm
8 K K 6x9x10 TN 3.3 KN 3.2 KN 6 mm 0.345 KN 0.0011 kg 9 mm
9 K K 7x10x8 TN 2.81 KN 2.75 KN 7 mm 0.29 KN 0.0009 kg 10 mm
10 K K 7x10x10 TN 3.58 KN 3.75 KN 7 mm 0.415 KN 0.001 kg 10 mm
11 K K 8x11x10 TN 3.8 KN 4.25 KN 8 mm 0.465 KN 0.0012 kg 11 mm
12 K K 8x11x13 TN 5.01 KN 5.85 KN 8 mm 0.67 KN 0.0017 kg 11 mm
13 K K 8x12x10 TN 4.84 KN 4.75 KN 8 mm 0.54 KN 0.002 kg 12 mm
14 K K 9x12x10 TN 4.4 KN 5.2 KN 9 mm 0.57 KN 0.0015 kg 12 mm
15 K K 10x13x10 TN 4.57 KN 5.7 KN 10 mm 0.63 KN 0.0016 kg 13 mm
16 K K 10x13x13 TN 5.94 KN 8 KN 10 mm 0.9 KN 0.0023 kg 13 mm
17 K K 10x14x10 TN 5.61 KN 6.1 KN 10 mm 0.695 KN 0.0025 kg 14 mm
18 K K 10x14x13 TN 7.21 KN 8.5 KN 10 mm 0.98 KN 0.0046 kg 14 mm
19 K K 10x16x12 TN 7.65 KN 7.2 KN 10 mm 0.85 KN 0.0055 kg 16 mm
20 K K 12x15x10 TN 4.73 KN 6.2 KN 12 mm 0.695 KN 0.0029 kg 15 mm
21 K K 12x15x13 TN 6.16 KN 8.65 KN 12 mm 0.98 KN 0.0023 kg 15 mm
22 K K 12x16x13 TN 7.65 KN 9.5 KN 12 mm 1.1 KN 0.0036 kg 16 mm
23 K K 12x17x13 TN 9.13 KN 10.4 KN 12 mm 1.22 KN 0.0049 kg 17 mm
24 K K 12x18x12 TN 9.52 KN 10 KN 12 mm 1.18 KN 0.006 kg 18 mm
25 K K 14x18x10 6.93 KN 8.65 KN 14 mm 1 KN 0.004 kg 18 mm
26 K K 14x18x13 7.92 KN 10.2 KN 14 mm 1.18 KN 0.0065 kg 18 mm
27 K K 14x18x15 TN 9.13 KN 12.5 KN 14 mm 1.46 KN 0.005 kg 18 mm
28 K K 14x18x17 10.5 KN 14.6 KN 14 mm 1.7 KN 0.008 kg 18 mm
29 K K 15x19x13 8.25 KN 11.2 KN 15 mm 1.29 KN 0.007 kg 19 mm
30 K K 15x19x17 10.8 KN 15.6 KN 15 mm 1.86 KN 0.0095 kg 19 mm
31 K K 15x21x15 13.8 KN 16.3 KN 15 mm 2 KN 0.011 kg 21 mm
32 K K 15x21x21 18.7 KN 24.5 KN 15 mm 3 KN 0.017 kg 21 mm
33 K K 16x20x10 7.48 KN 10 KN 16 mm 1.16 KN 0.0055 kg 20 mm
34 K K 16x20x13 8.58 KN 12 KN 16 mm 1.37 KN 0.0075 kg 20 mm
35 K K 16x20x17 11.2 KN 17 KN 16 mm 2 KN 0.010 kg 20 mm
36 K K 16x22x12 11 KN 12.5 KN 16 mm 1.5 KN 0.010 kg 22 mm
37 K K 16x22x16 14.2 KN 17.6 KN 16 mm 2.12 KN 0.012 kg 22 mm
38 K K 16x22x20 17.6 KN 22.8 KN 16 mm 2.8 KN 0.017 kg 22 mm
39 K K 16x24x20 20.5 KN 23.6 KN 16 mm 2.9 KN 0.022 kg 24 mm
40 K K 17x21x10 7.81 KN 10.8 KN 17 mm 1.22 KN 0.0055 kg 21 mm
41 K K 18x24x12 12.1 KN 15 KN 18 mm 1.8 KN 0.012 kg 24 mm
42 K K 19x23x13 9.13 KN 13.7 KN 19 mm 1.6 KN 0.008 kg 23 mm
43 K K 20x24x10 8.58 KN 12.9 KN 20 mm 1.46 KN 0.0065 kg 24 mm
44 K K 20x24x13 9.52 KN 14.6 KN 20 mm 1.66 KN 0.009 kg 24 mm
45 K K 20x24x17 12.5 KN 20.8 KN 20 mm 2.4 KN 0.012 kg 24 mm
46 K K 20x26x17 18.3 KN 26 KN 20 mm 3.2 KN 0.016 kg 26 mm
47 K K 20x26x20 20.1 KN 29 KN 20 mm 3.6 KN 0.019 kg 26 mm
48 K K 20x28x20 22.9 KN 28.5 KN 20 mm 3.45 KN 0.027 kg 28 mm
49 K K 20x28x25 29.2 KN 39 KN 20 mm 4.9 KN 0.032 kg 28 mm
50 K K 20x30x30 34.1 KN 41.5 KN 20 mm 5.2 KN 0.049 kg 30 mm
51 K K 21x25x13 9.68 KN 15.3 KN 21 mm 1.76 KN 0.009 kg 25 mm
52 K K 22x26x10 8.8 KN 13.7 KN 22 mm 1.56 KN 0.0075 kg 26 mm
53 K K 22x26x13 10.1 KN 16.3 KN 22 mm 1.86 KN 0.0095 kg 26 mm
54 K K 22x26x17 13.2 KN 22.8 KN 22 mm 2.7 KN 0.012 kg 26 mm
55 K K 22x28x17 18.3 KN 27 KN 22 mm 3.25 KN 0.018 kg 28 mm
56 K K 22x29x16 19.4 KN 25.5 KN 22 mm 3.05 KN 0.016 kg 29 mm
57 K K 22x30x15 TN 19 KN 23.6 KN 22 mm 2.8 KN 0.018 kg 30 mm
58 K K 23x35x16 TN 24.2 KN 23.2 KN 23 mm 2.9 KN 0.029 kg 35 mm
59 K K 24x28x10 9.35 KN 15 KN 24 mm 1.73 KN 0.0085 kg 28 mm
60 K K 24x28x13 10.6 KN 18 KN 24 mm 2.08 KN 0.010 kg 28 mm
61 K K 24x30x17 18.7 KN 27.5 KN 24 mm 3.4 KN 0.019 kg 30 mm
62 K K 25x29x10 9.52 KN 15.6 KN 25 mm 1.8 KN 0.0085 kg 29 mm
63 K K 25x29x13 10.8 KN 18.6 KN 25 mm 2.16 KN 0.011 kg 29 mm
64 K K 25x30x17 17.9 KN 30.5 KN 25 mm 3.6 KN 0.016 kg 30 mm
65 K K 25x30x20 20.9 KN 36.5 KN 25 mm 4.4 KN 0.018 kg 30 mm
66 K K 25x32x16 19.8 KN 27.5 KN 25 mm 3.35 KN 0.021 kg 32 mm
67 K K 25x33x20 27.5 KN 38 KN 25 mm 4.65 KN 0.033 kg 33 mm
68 K K 25x35x30 44.6 KN 62 KN 25 mm 7.8 KN 0.065 kg 35 mm
69 K K 26x30x13 11.2 KN 19.6 KN 26 mm 2.28 KN 0.011 kg 30 mm
70 K K 28x33x13 14.7 KN 24.5 KN 28 mm 2.85 KN 0.013 kg 33 mm
71 K K 28x33x17 19 KN 33.5 KN 28 mm 4.05 KN 0.017 kg 33 mm
72 K K 30x35x13 15.1 KN 25.5 KN 30 mm 3 KN 0.014 kg 35 mm
73 K K 30x35x17 18.7 KN 34 KN 30 mm 4.05 KN 0.019 kg 35 mm
74 K K 30x35x27 29.2 KN 60 KN 30 mm 7.35 KN 0.030 kg 35 mm
75 K K 30x37x18 25.1 KN 39 KN 30 mm 4.65 KN 0.030 kg 37 mm
76 K K 30x40x30 46.8 KN 69.5 KN 30 mm 8.65 KN 0.073 kg 40 mm
77 K K 32x37x13 14.7 KN 25.5 KN 32 mm 3 KN 0.018 kg 37 mm
78 K K 32x37x17 19 KN 35.5 KN 32 mm 4.25 KN 0.019 kg 37 mm
79 K K 32x38x20 25.1 KN 45 KN 32 mm 5.6 KN 0.030 kg 38 mm
80 K K 32x40x25 35.8 KN 58.5 KN 32 mm 7.2 KN 0.049 kg 40 mm
81 K K 35x40x13 15.4 KN 28 KN 35 mm 3.25 KN 0.019 kg 40 mm
82 K K 35x40x17 19.8 KN 39 KN 35 mm 4.65 KN 0.021 kg 40 mm
83 K K 35x40x27 TN 23.8 KN 49 KN 35 mm 6 KN 0.039 kg 40 mm
84 K K 35x42x16 23.3 KN 37.5 KN 35 mm 4.5 KN 0.034 kg 42 mm
85 K K 35x42x18 26.4 KN 44 KN 35 mm 5.3 KN 0.034 kg 42 mm
86 K K 35x45x20 35.2 KN 50 KN 35 mm 6.2 KN 0.056 kg 45 mm
87 K K 37x42x17 21.6 KN 43 KN 37 mm 5.2 KN 0.022 kg 42 mm
88 K K 38x43x17 19.8 KN 39 KN 38 mm 4.65 KN 0.029 kg 43 mm
89 K K 38x46x32 52.3 KN 100 KN 38 mm 12.5 KN 0.076 kg 46 mm
90 K K 40x45x17 20.5 KN 41.5 KN 40 mm 5 KN 0.031 kg 45 mm
91 K K 40x45x27 31.4 KN 73.5 KN 40 mm 9 KN 0.046 kg 45 mm
92 K K 40x48x20 37.4 KN 58.5 KN 40 mm 7.35 KN 0.049 kg 48 mm
93 K K 42x47x17 20.9 KN 43 KN 42 mm 5.2 KN 0.032 kg 47 mm
94 K K 42x50x20 33.6 KN 57 KN 42 mm 7.1 KN 0.053 kg 50 mm
95 K K 43x48x17 20.9 KN 43 KN 43 mm 5.2 KN 0.030 kg 48 mm
96 K K 45x50x17 21.6 KN 46.5 KN 45 mm 5.6 KN 0.034 kg 50 mm
97 K K 45x50x27 33 KN 81.5 KN 45 mm 10 KN 0.052 kg 50 mm
98 K K 45x53x28 49.5 KN 98 KN 45 mm 12.2 KN 0.081 kg 53 mm
99 K K 47x52x17 22.4 KN 49 KN 47mm 6 KN 0.035 kg 52 mm
100 K K 50x55x20 25.5 KN 60 KN 50 mm 7.2 KN 0.043 kg 55 mm

Features and advantages of QIBR needle roller and cage assemblies

QIBR needle roller and cage assemblies address several critical issues in diverse fields, mainly in the following areas:

1. Compact structure

Using needle rollers as rolling elements allows these bearings to handle large radial loads while being relatively small in size, making them suitable for installation in limited spaces, particularly in compact mechanical designs.

2. Low friction and high efficiency

Thanks to the precise design between the needle rollers and the cage, these bearings exhibit low friction losses, reducing heat generation and improving operational efficiency. This makes them suitable for high-speed and high-efficiency environments.

3. High durability

The cage stabilizes the position of the needle rollers, reducing contact and wear among them, thereby extending the bearing's lifespan. Proper clearance and precision design ensure stability and reliability during operation.

4. Low noise and vibration

The rational structure between the needle rollers and the cage minimizes contact among the rollers, reducing noise and vibration, and making them ideal for environments requiring low noise levels.

5. Adaptability to high-speed applications

With small needle roller shapes and reduced contact area, these bearings are well-suited for high-speed applications, effectively preventing excessive friction and overheating at high speeds.

Performance improvements and solutions for QIBR needle roller and cage assemblies

1. Improved materials

High-performance material selection: Using materials with greater hardness, wear resistance, and corrosion resistance can significantly enhance bearing durability and stability.

2. Optimized cage design

Structural optimization: Enhancing the cage structure to achieve better needle roller arrangement and uniform load distribution. Optimizing the cage reduces needle roller collisions, improving operational stability and efficiency.

Reduced contact area: By refining the cage geometry and needle roller arrangement, contact areas among rollers are minimized, reducing friction and wear.

3. Enhanced lubrication performance

Efficient lubricants: Employing greases or oils suited for high-temperature and high-pressure environments ensures consistent lubricant performance during extended operations, reducing friction and improving durability.

4. Increased precision

Precision machining: Enhancing manufacturing accuracy minimizes errors between bearing components, ensuring more uniform and stable contact between needle rollers and the cage. This improves performance, extends lifespan, and reduces noise and vibration.

Main application areas of QIBR needle roller and cage assemblies

1. Transmissions

Needle roller and cage assemblies are commonly used between the gears and shafts inside transmissions to enhance transmission efficiency and reduce overall size.

2. Industrial machinery

Gearboxes and Transmission Systems: Widely used in gearboxes and gear-driven systems, these bearings can handle large radial loads, reduce space usage, and improve transmission efficiency.

Automation Equipment: In automated production lines, QIBR needle roller and cage assemblies support rotating components, ensuring the precision and stability of the equipment.

3. Aviation engines

Turbo Shafts and Rotating Components: In aviation engines, QIBR needle roller and cage assemblies are used in turboshafts, turbines, and other rotating components to ensure smooth operation at high speeds while handling radial loads generated by high-speed rotation.

4. Household appliances

Home Appliances: QIBR needle roller and cage assemblies are widely used in products such as washing machines, electric fans, power tools, and motors, providing high efficiency and stability while reducing space requirements.