Y2 Preminum Quality 30 HP 22kw 3 Phase Induction Electric Motor

• Application: Industrial
• Speed: Constant Speed
• Number of Stator: Three-Phase
• Function: Driving
• Casing Protection: Protection Type
• Number of Poles: 4
• Model NO.: Y2-180L-4 30HP
• Starting Mode: y-δ Starting
• Certification: ISO9001, CCC, CE
• Brand: Liyuan
• Housing: Iron-Cast
• Cover: Iron-Cast
• Terminal Box: PPO
• Fan: PP
• Fan Cover: A3
• Shaft: C45
• Transport Package: Carton or Plywood
• Trademark: LIYUAN
• Origin: Fuan
• HS Code: 8501520000
• Production Capacity: 50000 Pieces/Year

Product Description

Y2 preminum quality 30 hp 22kw 3 phase induction electric motor

Recommendation

 

Product Description

 

Model	kw	HP	Current	Speed	Eff	Power Factor	Tst/Tn	Ist/In	Tmax/Tn
Y2-180L-4	22	30	42.5A	1470 rpm	91.5%	0.86	2	7	2.3

Company Profile

 

FAQ

1. How to control the filling amount of motor bearing grease?
   
          Generally, the bearing should not be filled with grease, so that it can be installed to 1/2 to 3/4 of the total space of the bearing cavity. The horizontally installed bearing fills 2/3~3/4 of the inner cavity space; the vertically installed bearing fills the upper end bearing of the inner cavity space according to 1/2 of the inner cavity space, and the lower end bearing is filled according to 3/4 of the inner cavity space.
    
    
          In an environment prone to pollution, for low-speed or medium-speed bearings, all the space in the bearing cover should be filled; for high-speed bearings, the bearings should be placed in high-quality lubricating oil before grease is loaded. Soak it in the base oil to avoid bearing burnout due to insufficient grease on the friction surface during startup.
    
          However, from the analysis of the state of motor operation, even if the filling amount is suitable, it needs to be guaranteed by scientific filling methods and effective lubricating oil paths.
    
          Working principle and usage of motor bearing grease
    
          The lubrication of the motor bearing relies on the lubricating oil separated out when the three-dimensional fiber network structure in the grease is pulled off under the action of shearing, forming a layer of lubricating film on the rotating element, bearing seat and bearing seat ring of the bearing for lubrication. effect.
    
    
          When the newly loaded bearing starts to rotate, the grease is first thrown out from the rotating element, and quickly circulates and cools in the cavity of the bearing cap. Then the grease is cut into the rotating element from the outside of the rotating bearing race, and the part of the grease that is close to the surface of the rotating element breaks the fibrous network structure under the shearing action, so that a small amount of precipitated lubricating oil is deposited on the rotating element and the seat. A lubricating film is formed on the ring surface. The remaining part of the grease still maintains a good fiber network structure, which acts as a cooling and sealing function.
    
    
          When the bearing just starts to rotate, the turbulent motion of the grease generates frictional heat, which raises the bearing temperature to a maximum value. Then, with the continuous shearing action, the lubricating oil is separated out, and after a lubricating film is formed on the rotating elements of the bearing, the bearing seat and the bearing race, this frictional heat is gradually reduced, and at the same time, it is continuously thrown out from the rotating elements. The lubricating grease in the cavity of the bearing cap has a good cooling effect, so that the bearing temperature gradually decreases and approaches a balance value.
    
    
          It can be seen from the working principle of the above motor bearing grease that the grease in the motor bearing does not rely on the grease to adhere to the metal surface to lubricate, but circulates continuously in the cavity of the bearing cap like a liquid. That is, it is continuously thrown from the rotating element into the bearing cover cavity, and continuously returned to the rotating element from the bearing cover cavity, so that repeated shearing and cooling ensure that the bearing does not have abnormal temperature rise.
    
    
          The amount of grease filled in the motor bearing should be kept at 1/3 of the total cavity in the bearing cover, leaving 2/3 of the space, so as to ensure that there is enough space for the grease thrown from the rotating element to cool down sufficiently Return to the rotating element to achieve the purpose of controlling the temperature rise. At the same time, it should be noted that the amount of grease filled should not be too small. Because the amount of grease is too small, the grease thrown from the rotating element will not be able to return to the rotating element from the bearing cap, resulting in insufficient lubrication.