SKFNU 312 ECJ is a NU series cylindrical roller bearing. The following are its parameters and usage instructions:
1. Dimensions: Inner diameter is 60mm, outer diameter is 130mm, and width is 31mm.
2. Bearing load capacity: The static load bearing capacity is 173 kN, and the dynamic load bearing capacity is 160 kN.
3. Maximum speed: The basic rated speed is 5600rpm, and the maximum rated speed is 6700rpm.
4. Accuracy level: P0 level.
5. Temperature range for use: minimum temperature -40 ºC, maximum temperature 120 ºC.
6. Usage: This bearing is suitable for supporting axis and small inner diameter hole applications, and is usually used in industry equipment, machine tools, as well as various types of automobiles and other mechanical equipment.
7. Installation precautions:
-Before installation, be sure to clean the bearings and seats and check for any damage or foreign objects entering.
-During installation, apply appropriate thrust or light tapping to ensure the correct position.
-After installation, verify whether the bearing rotates smoothly and ensure appropriate lubrication.
-Do not apply direct impact to the bearings.
| Model |
Basic Dimensions (mm) |
Basic Dynamic load rating (kn) |
Rated Speed ( r/min) |
| Inner Diameter |
Outer Diameter |
Width |
Trends |
static state |
Reference speed |
Limiting Speeds |
| NU 305 ECJ |
25 |
62 |
17 |
46.5 |
36.5 |
12 000 |
15 000 |
| NU 306 ECJ |
30 |
72 |
19 |
58.5 |
48 |
11 000 |
12 000 |
| NU 307 ECJ |
35 |
80 |
21 |
75 |
63 |
9 500 |
11 000 |
| NU 308 ECJ |
40 |
90 |
23 |
93 |
78 |
8 000 |
9 500 |
| NU 309 ECJ |
45 |
100 |
25 |
112 |
100 |
7 500 |
8 500 |
| NU 310 ECJ |
50 |
110 |
27 |
127 |
112 |
6 700 |
8 000 |
| NU 312 ECJ |
60 |
130 |
31 |
173 |
160 |
5 600 |
6 700 |
| NU 313 ECJ |
65 |
140 |
33 |
212 |
196 |
5 300 |
6 000 |
| NU 314 ECJ |
70 |
150 |
35 |
236 |
228 |
4 800 |
5 600 |
| NU 315 ECJ |
75 |
160 |
37 |
280 |
265 |
4 500 |
5 300 |
| NU 316 ECJ |
80 |
170 |
39 |
300 |
290 |
4 300 |
5 000 |
| NU 317 ECJ |
85 |
180 |
41 |
340 |
335 |
4 000 |
4 800 |
| NU 318 ECJ |
90 |
190 |
43 |
365 |
360 |
3 800 |
4 500 |
| NU 319 ECJ |
95 |
200 |
45 |
390 |
390 |
3 600 |
4 300 |
| NU 320 ECJ |
100 |
215 |
47 |
450 |
440 |
3 200 |
3 800 |
| NU 321 ECJ |
105 |
225 |
49 |
500 |
500 |
3 200 |
3 800 |
| NU 322 ECJ |
110 |
240 |
50 |
530 |
540 |
3 000 |
3 400 |
| NU 324 ECJ |
120 |
260 |
55 |
610 |
620 |
2 800 |
3 200 |
| NU 326 ECJ |
130 |
280 |
58 |
720 |
750 |
2 400 |
3 000 |
| NU 328 ECJ |
140 |
300 |
62 |
780 |
830 |
2 400 |
2 800 |
FAQ
1.What is the minimum order quantity for this product?
Can be negotiated, we will try our best to meet customer needs.Our company is mainly based on wholesale sales, most customers'orders are more than Over 200 sets.
2.What is your latest delivery time?
Most orders will be shipped within 3-5 days of payment being received.
3.Does your company have quality assurance?
Yes, for 1 years.
4.Are you a factory or a trading company?
We have our own cooperative factory, and our business type is a combination of manufacturing and trading.
5.What is the competitiveness of your company's products compared to other companies?
High precision, high speed, low noise.
6.What are the advantages of your company's services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner, 100% after-sales service.
7.Which payment method does your company support?
Do our best to meet customer needs, Can be negotiated.
8.How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, we will contact you as soon as possible and provide the detailed information you need.
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