The NKI Series Needle Roller Bearings are high-precision, compact bearings designed for applications requiring high radial load capacity and efficient performance in minimal spaces. Featuring an integrated inner ring, these bearings ensure precise alignment and enhanced durability, making them ideal for automotive, industrial, and machinery use. Their robust design and precision manufacturing guarantee reliable performance in demanding environments.
Features:
- Integrated Inner Ring: Ensures stable alignment and allows usage on shafts without hardened and ground raceways.
- Needle Roller Design: Provides high load-carrying capacity while minimizing space requirements.
- Compact and Lightweight: Optimized for use in applications with limited space without compromising strength.
- Durable Materials: Constructed from premium-grade steel for excellent wear and corrosion resistance.
- Precision Engineering: Designed for smooth operation with minimal friction and noise.
- High Load Capacity: Built to handle substantial radial loads in compact systems.
- Sealed and Open Options: Available with seals for enhanced protection against contaminants.
Applications:
- Automotive: Used in transmissions, camshafts, and suspension systems for efficient power transmission.
- Industrial Machinery: Ideal for gearboxes, compressors, and pumps requiring reliable and compact bearings.
- Aerospace: Suitable for lightweight applications demanding high load performance.
- Agricultural Equipment: Common in harvesters, tractors, and other machinery for dependable operation.
- Power Tools: Found in drills, grinders, and saws where space and performance are critical.
| Bearing Model |
Dimensions(mm) |
permisive |
Basic Load Rating(N) |
Limiting Speed(rpm) |
Weight(Kg) |
| d |
F |
D |
B |
fmin |
offset (s) |
Dyn.C |
Stat.Co |
Oil |
| NKI5/12 |
5 |
8 |
15 |
12 |
0.3 |
1.5 |
3.2 |
3.28 |
25600 |
0.012 |
| NKI6/12 |
6 |
9 |
16 |
12 |
0.3 |
1.5 |
3.64 |
4 |
24000 |
0.013 |
| NKI6/16 |
6 |
9 |
16 |
16 |
0.3 |
2 |
4.4 |
5.12 |
24000 |
0.017 |
| NKI7/12 |
7 |
10 |
17 |
12 |
0.3 |
1.5 |
3.64 |
4.08 |
22400 |
0.014 |
| NKI7/16 |
7 |
10 |
17 |
16 |
0.3 |
2 |
4.36 |
5.16 |
22400 |
0.018 |
| NKI9/12 |
9 |
12 |
19 |
12 |
0.3 |
1.5 |
4 |
4.88 |
20800 |
0.018 |
| NKI9/16 |
9 |
12 |
19 |
16 |
0.3 |
2 |
7.2 |
8.8 |
20800 |
0.022 |
| NKI10/16 |
10 |
14 |
22 |
16 |
0.3 |
0.5 |
8.24 |
9.2 |
19200 |
0.03 |
| NKI10/20 |
10 |
14 |
22 |
20 |
0.3 |
0.5 |
10.4 |
12.48 |
19200 |
0.038 |
| NKI12/16 |
12 |
16 |
24 |
16 |
0.3 |
0.5 |
9.76 |
11.92 |
18400 |
0.033 |
| NKI12/20 |
12 |
16 |
24 |
20 |
0.3 |
0.5 |
11.68 |
15.04 |
18400 |
0.042 |
| NKI15/16 |
15 |
19 |
27 |
16 |
0.3 |
0.5 |
10.64 |
13.92 |
16800 |
0.039 |
| NKI15/20 |
15 |
19 |
27 |
20 |
0.3 |
0.5 |
12.8 |
17.76 |
16800 |
0.045 |
| NKI17/16 |
17 |
21 |
29 |
16 |
0.3 |
0.5 |
11 |
15 |
15200 |
0.042 |
| NKI17/20 |
17 |
21 |
29 |
20 |
0.3 |
0.5 |
14.64 |
21.68 |
15200 |
0.053 |
| NKI20/16 |
20 |
24 |
32 |
161 |
0.3 |
0.5 |
12.16 |
17.84 |
13600 |
0.049 |
| NKI20/20 |
20 |
24 |
32 |
20 |
0.3 |
0.5 |
14.88 |
23.04 |
13600 |
0.061 |
| NKI22/16 |
22 |
26 |
34 |
16 |
0.3 |
0.5 |
12.48 |
18.88 |
12000 |
0.046 |
| NKI22/20 |
22 |
26 |
34 |
20 |
0.3 |
0.5 |
15.28 |
24.4 |
12000 |
0.064 |
| NKI25/20 |
25 |
29 |
38 |
20 |
0.3 |
1 |
17.76 |
27.2 |
11200 |
0.079 |
| NKI25/30 |
25 |
29 |
38 |
30 |
0.3 |
1.5 |
22 |
40.4 |
11200 |
0.123 |
| NKI28/20 |
28 |
32 |
42 |
20 |
0.3 |
1 |
18.8 |
30 |
10400 |
0.096 |
| NKI28/30 |
28 |
32 |
42 |
30 |
0.3 |
1.5 |
27.2 |
48.4 |
10400 |
0.146 |
| NKI30/20 |
30 |
35 |
45 |
20 |
0.3 |
0.5 |
19.84 |
33.2 |
8800 |
0.112 |
| NKI30/30 |
30 |
35 |
45 |
30 |
0.3 |
1 |
28.8 |
53.2 |
8800 |
0.171 |
| NKI32/20 |
32 |
37 |
47 |
20 |
0.3 |
0.5 |
20.24 |
34.8 |
8800 |
0.117 |
| NKI32/30 |
32 |
37 |
47 |
30 |
0.3 |
1 |
29.2 |
55.6 |
8800 |
0.17 |
| NKI35/20 |
35 |
40 |
50 |
20 |
0.3 |
0.5 |
21.12 |
37.6 |
8000 |
0.13 |
| NKI35/30 |
35 |
40 |
50 |
30 |
0.3 |
1 |
30.8 |
60.8 |
8000 |
0.193 |
| NKI38/20 |
38 |
43 |
53 |
20 |
0.3 |
0.5 |
22 |
40.8 |
7600 |
0.134 |
| NKI38/30 |
38 |
43 |
53 |
30 |
0.3 |
1 |
32 |
65.6 |
7600 |
0.207 |
| NKI40/20 |
40 |
45 |
55 |
20 |
0.3 |
0.5 |
22.4 |
42 |
7200 |
0.143 |
| NKI40/30 |
40 |
45 |
55 |
30 |
0.3 |
1 |
32.8 |
68.4 |
7200 |
0.216 |
| NKI42/20 |
42 |
47 |
57 |
20 |
0.3 |
0.5 |
23 |
44.4 |
6800 |
0.148 |
| NKI42/30 |
42 |
47 |
57 |
30 |
0.3 |
1 |
34 |
73.2 |
6800 |
0.222 |
| NKI45/25 |
45 |
50 |
62 |
25 |
0.6 |
1.5 |
30.8 |
59.6 |
6400 |
0.229 |
| NKI45/35 |
45 |
50 |
62 |
35 |
0.6 |
2 |
40.8 |
84.8 |
6400 |
0.322 |
| NKI50/25 |
50 |
55 |
68 |
25 |
0.6 |
1.5 |
32.8 |
65.6 |
6000 |
0.271 |
| NKI50/35 |
50 |
55 |
68 |
35 |
0.6 |
2 |
43.2 |
94.4 |
6000 |
0.379 |
| NKI55/25 |
55 |
60 |
72 |
25 |
0.6 |
1.5 |
32.8 |
68 |
5200 |
0.271 |
| NKI55/35 |
55 |
60 |
72 |
35 |
0.6 |
2 |
45.6 |
104 |
5200 |
0.379 |
| NKI60/25 |
60 |
68 |
82 |
25 |
0.6 |
1 |
35.6 |
71.2 |
4800 |
0.393 |
| NKI60/35 |
60 |
68 |
82 |
35 |
0.6 |
1 |
50.4 |
111.2 |
4800 |
0.551 |
| NKI65/25 |
65 |
73 |
90 |
25 |
1 |
1 |
43.2 |
80 |
4400 |
0.466 |
| NKI65/35 |
65 |
73 |
90 |
35 |
1 |
1 |
61.2 |
124.8 |
4400 |
0.66 |
| NKI70/25 |
70 |
80 |
95 |
25 |
1 |
0.8 |
45.6 |
95.2 |
4000 |
0.525 |
| NKI70/35 |
70 |
80 |
95 |
35 |
1 |
0.8 |
63.6 |
147.2 |
4000 |
0.738 |
| NKI75/25 |
75 |
85 |
105 |
25 |
1 |
1 |
56.4 |
98.4 |
3760 |
0.642 |
| NKI75/35 |
75 |
85 |
105 |
35 |
1 |
1 |
80 |
154.4 |
3760 |
0.853 |
| NKI80/25 |
80 |
90 |
110 |
25 |
1 |
1 |
57.2 |
102.4 |
3520 |
0.68 |
| NKI80/35 |
80 |
90 |
110 |
35 |
1 |
1 |
83.2 |
166.4 |
3520 |
0.959 |
| NKI85/26 |
85 |
95 |
115 |
261 |
1 |
1.5 |
59.6 |
109.6 |
3360 |
0.743 |
| NKI85/36 |
85 |
95 |
115 |
36 |
1 |
1.5 |
86.4 |
178.4 |
3360 |
1.05 |
| NKI90/26 |
90 |
100 |
120 |
261 |
1 |
1.5 |
58,8 |
109.6 |
3200 |
0.781 |
| NKI90/36 |
90 |
100 |
120 |
36 |
1 |
1.5 |
85.6 |
178.4 |
3200 |
1.09 |
| NKI95/26 |
95 |
105 |
125 |
26 |
1 |
1.5 |
61.2 |
117.6 |
3040 |
0.819 |
| NKI95/36 |
95 |
105 |
125 |
36 |
1 |
1.5 |
88.8 |
190.4 |
3040 |
1.15 |
| NKI100/30 |
100 |
110 |
130 |
30 |
1.1 |
1.5 |
78 |
163.2 |
2880 |
0.99 |
| NKI100/40 |
100 |
110 |
130 |
40 |
1.1 |
2 |
103.2 |
233,6 |
2880 |
1.34 |
| NKI110/40 |
110 |
120 |
140 |
40 |
1.1 |
1 |
90.4 |
214.4 |
2640 |
1.49 |
| NKI120/40 |
120 |
130 |
150 |
40 |
1.1 |
1 |
92.8 |
226.4 |
2480 |
1.57 |
| NKI130/32 |
130 |
145 |
170 |
32 |
1.5 |
1 |
88.8 |
190.4 |
2240 |
1.9 |
| NKI130/42 |
130 |
145 |
170 |
42 |
1.5 |
1 |
122.4 |
288 |
2240 |
2.54 |
| NKI140/32 |
140 |
155 |
180 |
32 |
1.5 |
1 |
91.2 |
201.6 |
2080 |
2.04 |
| NKI140/42 |
140 |
155 |
180 |
42 |
1.5 |
1 |
124.8 |
304 |
2080 |
2.69 |
| NKI150/32 |
150 |
165 |
190 |
32 |
1.5 |
1 |
93.6 |
212 |
1920 |
2.32 |
| NKI150/42 |
150 |
165 |
190 |
42 |
1.5 |
1 |
128 |
320 |
1920 |
2.84 |
1. What types of bearings do you offer?
We provide a wide range of bearings, including ball bearings, roller bearings, deep groove ball bearings, angular contact bearings, cylindrical roller bearings, self-aligning bearings, thrust bearings, needle bearings, and more. We also specialize in ceramic, hybrid, and custom-designed bearings.
2. Do you offer customized bearing solutions?
Yes, we provide OEM and custom bearing production services tailored to your specific needs. Share your requirements with us, and our expert team will help you design and manufacture the perfect bearing solution.
3. What materials are used in your bearings?
Our bearings are manufactured using high-quality materials such as Gcr15, stainless steel (304, 316, 440C), silicon nitride (Si3N4), zirconia (ZrO₂), PEEK, PTFE, and other advanced materials to ensure durability, precision, and reliability in various applications.
4. Can you provide samples before placing a bulk order?
Yes, we offer sample bearings for testing and evaluation. Please contact us with your sample request, and we’ll be happy to assist you.
5. What industries do you serve?
We cater to a diverse range of industries, including automotive, aerospace, agriculture, machinery, food processing, medical equipment, industrial automation, and renewable energy.
6. Do you export your products?
Yes, we export bearings worldwide, including to Europe, North America, Asia, and other regions. Our products comply with international quality standards and have been well-received by customers globally.
7. What is your minimum order quantity (MOQ)?
Our MOQ varies depending on the product type and customization requirements. For standard products, we offer flexible MOQ options. Contact us for details specific to your needs.
8. What is your production lead time?
Lead times depend on the type of bearing and order quantity. Standard bearings are typically ready for shipment within 2-4 weeks, while customized orders may take longer. We strive to deliver orders promptly to meet your deadlines.
9. How do you ensure product quality?
Our bearings are manufactured under strict quality control measures, including ISO certifications, precision testing, and rigorous inspections. Each product is tested to ensure compliance with international standards.
10. What payment methods do you accept?
We accept multiple payment methods, including wire transfer (T/T), PayPal, and credit cards. Contact our sales team for further assistance regarding payment options.
11. Do you provide technical support?
Yes, our experienced team offers technical support and guidance to help you choose the right bearing for your application. We’re also available for after-sales service and maintenance inquiries.
12. How can I place an order?
You can place an order by contacting us through our website, email, or phone. Our sales team will guide you through the process and ensure a seamless transaction.
13. Can I track my shipment?
Yes, once your order is shipped, we will provide a tracking number and details to help you monitor your shipment until it arrives at your destination.
14. What is your return policy?
We accept returns for defective or damaged bearings within a specified timeframe. Please review our return policy or contact our customer service team for assistance.
15. How can I contact you for more information?
You can reach us via email, phone, or through the contact form on our website. Visit our Contact Us page for detailed information.
1. Extensive Experience
With over a decade of expertise in the bearing industry, we have established ourselves as a trusted supplier delivering high-quality products to clients worldwide.
2. Premium Quality
Our bearings are manufactured using top-grade materials and cutting-edge technology, ensuring durability, precision, and compliance with international standards like ISO and ANSI.
3. Wide Product Range
We offer a comprehensive selection of bearings, including ball bearings, roller bearings, ceramic bearings, hybrid bearings, and custom-designed solutions to meet the diverse needs of our customers.
4. Customization and OEM Services
We specialize in custom manufacturing and OEM services tailored to your unique requirements. Share your specifications, and we’ll create the perfect solution for your application.
5. Competitive Pricing
As a direct manufacturer, we offer competitive pricing without compromising on quality, ensuring exceptional value for our customers.
6. Global Reach
Our bearings are trusted by clients in Europe, North America, Asia, and beyond. We have a well-established global logistics network to deliver products efficiently and on time.
7. Technical Expertise and Support
Our professional team provides technical guidance to help you select the right bearing for your application. We also offer excellent after-sales support for maintenance and troubleshooting.
8. Strict Quality Control
Every bearing undergoes rigorous testing and inspection to ensure optimal performance and reliability in demanding environments.
9. Environmentally Friendly Manufacturing
We are committed to sustainability, using eco-friendly processes and materials to reduce our environmental impact while maintaining product excellence.
10. Customer-Centric Approach
Your satisfaction is our top priority. We build lasting partnerships with our clients by providing exceptional service, quick responses, and tailored solutions.
