Product Parameters
The role of cylindrical roller bearings
Cylindrical roller bearing is a kind of rolling bearing, which is characterized by linear contact between the rolling element and the raceway, and has a large radial bearing capacity. This kind of bearing mainly bears radial load, and the friction between the rolling body and the rim of the ring is small, so it is suitable for high-speed rotation. Cylindrical roller bearings can be divided into two types according to whether the ring has a rib or not, and the inner ring and the outer ring can be separated, which makes the installation and disassembly more convenient.
The internal structure of cylindrical roller bearings adopts rollers arranged in parallel, and there is a spacer or isolation block between the rollers to prevent the tilt of the rollers or friction with each other, so as to effectively prevent the increase of rotating torque. The radial carrying capacity of this bearing is 1.5 to 3 times higher than that of ball bearings of the same size, with good rigidity and impact resistance, especially suitable for short shafts with rigid supports, shafts with axial displacement caused by thermal elongation and machine accessories requiring separate bearings
Packaging & Shipping
Installation Instructions
There are two common ways for the correct installation of cylindrical roller bearings: one is cold installation, and the other is hot installation.
1, cold installation:
When installing small bearings that are not too tight, the bearings can be installed into the appropriate position by tapping the sleeve gently through a sleeve and hammering method. When knocking, the effect should be as uniform as possible on the cylindrical roller bearing ring to prevent the bearing from tilting or skewing. Most cylindrical roller bearings are mounted by pressing method. If the inner and outer rings of the cylindrical roller bearing are installed on the shaft and the bearing seat at the same time, it must be ensured that the same pressure is applied to the inner and outer rings at the same time, and the contact surface of the installation tool must be on the same plane.
2, hot installation:
Under normal circumstances, for the installation of larger bearings, it is not possible to heat the bearing or bearing seat, because the greater the force required for installation as the size increases. The temperature difference between the cylindrical roller bearing ring and the shaft or bearing seat required for hot installation mainly depends on the interference amount and the diameter of the bearing fit. Open bearing heating temperature shall not exceed 120°C. It is not recommended to heat cylindrical roller bearings with seals and dust caps above 80°C (ensure that the temperature does not exceed the temperature allowed by the seals and grease). When heating cylindrical roller bearings, it is necessary to heat evenly, and there must be no local overheating.
Product Description
Class 8 bearings refers to the classification of rolling bearings and plain bearings according to the international standards ISO 15 and ISO 76, which are divided into 8 categories. These categories include: deep groove ball bearings, angular contact ball bearings, tapered roller bearings, self-aligning roller bearings, cylindrical roller bearings, thrust ball bearings, thrust roller bearings and plain bearings. Size specifications of 8 types of bearings
1, deep groove ball bearings :6000 series, 6200 series, 6300 series, 6400 series, 6800 series, 6900 series, 16000 series, 61800 series, 61900 series.
2, angular contact ball bearings :7000 series, 7200 series, 7300 series, 7400 series.
3, tapered roller bearings :30200 series, 30300 series, 31300 series, 32000 series, 32200 series, 32300 series, 32900 series, 33000 series.
4, self-aligning roller bearings :21300 series, 22200 series, 22300 series, 23000 series, 23100 series, 23200 series, 23900 series, 24000 series, 24100 series.
5, cylindrical roller bearings :NU10 series, NU2 series, NU3 series, NU4 series, NU22 series, NU23 series, NJ2 series, NJ3 series, NJ4 series, NUP2 series, NUP3 series, NUP4 series.
6, thrust ball bearings :51100 series, 51200 series, 51300 series, 51400 series, 52200 series, 52300 series, 53200 series, 53300 series.
7, thrust roller bearings :29200 series, 29300 series, 29400 series, 81100 series, 81200 series, 89300 series, 87400 series.
8. Plain bearing: linear bearing, plain bearing, bearing sleeve, bearing seat, bearing bushing, etc.
The above is a comprehensive introduction to the size specifications of 8 types of bearings. Different bearing types are suitable for different working conditions and load requirements, and selecting the right bearing can improve the performance and life of the equipment.
Certifications
Bearing type
FAQ
Why choose us?
1. Quality Control In order to ensure the quality of our vehicles and other products, our QC personnel carry out strict supplier evaluation, incoming inspection, process inspection, final inspection and pre-delivery inspection. Most importantly, we listen to our customers and are always looking for ways to improve the quality of our products through continuous improvement.
2. We have established long-term and stable cooperative relations with major supermarkets, and can also provide ODM, OEM and agency services for customers all over the world.
3. We have spare bearings that can be delivered immediately to any place in the world. Our bearings are widely used in motor, fan, injection molding machine, mining, mechanical equipment, metallurgy, rolling, automobile, railway, steel, electric power, textile, packaging, petroleum, paper and other fields
4. We put customer satisfaction and product quality in the first place. We provide reliable guarantee and good after-sales service.
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