PRODUCT
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Deep Groove Ball Bearing
- Deep Groove Ball Bearing 6000 Series
- Full Complement Deep Groove Ball Bearing 6000-V Series
- Flanged Deep Groove Ball Bearing F6000 Series
- Deep Groove Ball Bearing 6200 Series
- Deep Groove Ball Bearing 6200NR Series
- Deep Groove Ball Bearing 6300 Series
- Deep Groove Ball Bearing 6300NR Series
- Deep Groove Ball Bearing 6400 Series
- Deep Groove Ball Bearing 6000NR Series
- Deep Groove Ball Bearing 6700 Series
- Flanged Deep Groove Ball Bearing F6700 Series
- Deep Groove Ball Bearing 6800 Series
- Full Complement Deep Groove Ball Bearing 6800-V Series
- Flanged Deep Groove Ball Bearing F6800 Series
- Deep Groove Ball Bearing 6900 Series
- Full Complement Deep Groove Ball Bearing 6900-V Series
- Flanged Deep Groove Ball Bearing F6900 Series
- Deep Groove Ball Bearing 62200 Series
- Deep Groove Ball Bearing 62300 Series
- Deep Groove Ball Bearing 63000 Series
- Deep Groove Ball Bearing 63800 Series
- Full Complement Deep Groove Ball Bearing 63800-V Series
- Deep Groove Ball Bearing 16000 Series
- Double Row Deep Groove Ball Bearing 4200 Series
- Double Row Deep Groove Ball Bearing 4300 Series
- Deep Groove Ball Bearing Inch R Series
- Deep Groove Ball Bearing Inch RMS Series
- Miniature Deep Groove Ball Bearing
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Spherical Roller Bearings
- Spherical Roller Bearing 21300 Series
- Spherical Roller Bearing 22200 Series
- Spherical Roller Bearing 22300 Series
- Spherical Roller Bearing 23000 Series
- Spherical Roller Bearing 23100 Series
- Spherical Roller Bearing 23200 Series
- Spherical Roller Bearing 23900 Series
- Spherical Roller Bearing 24000 Serie
- Spherical Roller Bearing 24100 Series
- Split Style Spherical Roller Bearing
- Thrust Roller Bearing
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Joint Bearing
- Radial Spherical Joint Plain Bearing GE...E
- Radial Spherical Joint Plain Bearing GE...ES
- Radial Spherical Joint Plain Bearing GE...ES-2RS
- Rod End Joint Bearing PHS/PHSB
- Rod End Joint Bearing GE...C
- Rod End Joint Bearing SI...TK
- Rod End Joint Bearing NHS
- Rod End Joint Bearing GIR...DO
- Rod End Joint Bearing GIR...C
- Rod End Joint Bearing GIR...UK
- Rod End Joint Bearing SQZ...RS
- Rod End Joint Bearing SA...T/K
- Rod End Joint Bearing POS/POSB
- Rod End Joint Bearing NOS
- Rod End Joint Bearing GAR...DO
- Rod End Joint Bearing GAR...C
- Rod End Joint Bearing GAR...UK
- Rod End Joint Bearing SQ...RS
- Rod End Joint Bearing SA...E
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Angular Contact Ball Bearings
- Single Row Angular Contact Ball Bearing 7000 series
- Single Row Angular Contact Ball Bearing 7200 series
- Single Row Angular Contact Ball Bearing 7300 series
- Single Row Angular Contact Ball Bearing 7900 series
- Double Row Angular Contact Ball Bearing 3200 Series
- Double Row Angular Contact Ball Bearing 3300 Series
- Qj2 Series Four Point Angular Contact Ball Bearing
- Qj3 Series Four Point Angular Contact Ball Bearing
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Tapered Roller Bearings
- Single Row Tapered Roller Bearing 30200 Series
- Single Row Tapered Roller Bearing 30300 Series
- Single Row Tapered Roller Bearing 31300 Series
- Single Row Tapered Roller Bearing 32000 Series
- Single Row Tapered Roller Bearing 32200 Series
- Single Row Tapered Roller Bearing 32300 Series
- Single Row Tapered Roller Bearing 33000 Series
- Single Row Tapered Roller Bearing 33100 Series
- Single Row Tapered Roller Bearing 33200 Series
- Single Row Tapered Roller Bearing Inch Series
- Double Row Tapered Roller Bearing 350000 Series
- Double Row Tapered Roller Bearing Inch Series
- Four-row Tapered Roller Bearing 380000 Series
- Four-row Tapered Roller Bearing Inch Series
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Needle Roller Bearing
- HK Style Standard Needle Roller Bearing
- HF Style Standard Needle Roller Bearing
- F Style Standard Needle Roller Bearing
- K Style Standard Needle Roller Bearing
- SCE Style Standard Needle Roller Bearing
- CF Style Standard Needle Roller Bearing
- HFL Style Standard Needle Roller Bearing
- TA Style Standard Needle Roller Bearing
- NATR Style Standard Needle Roller Bearing
- BK Style Standard Needle Roller Bearing
- NA Style Standard Needle Roller Bearing
- NK Style Standard Needle Roller Bearing without Inner Ring
- NKI Style Standard Needle Roller Bearing with Inner Ring
- NKIS Style Standard Needle Roller Bearing with Inner Ring
- NKS Style Standard Needle Roller Bearing without Inner Ring
- RNA Standard Needle Roller Bearing without Inner Ring
- Inch-Style Needle Roller Bearing
- MR Series Heavy Duty Needle Roller Bearing
- Self-Aligning Ball Bearings
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Cylindrical Roller Bearings
- Cylindrical Roller Bearing N Series
- Cylindrical Roller Bearing NU Series
- Cylindrical Roller Bearing NJ Series
- Cylindrical Roller Bearing NF Series
- Cylindrical Roller Bearing NUP Series
- Cylindrical Roller Bearing NFP Series
- Cylindrical Roller Bearing NH(NJ+HJ) Series
- Cylindrical Roller Bearing NN Series
- Cylindrical Roller Bearing NNU Series
- Cylindrical Roller Bearing NNF Series
- Cylindrical Roller Bearing FC Series
- Cylindrical Roller Bearing FCD Series
- SL Sheave Wheel Series Cylindrical Roller Bearing
- Thrust Ball Bearing
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Pillow Block Bearing
- Pillow Block Bearing UC Inserts
- Pillow Block Bearing UK Inserts
- Pillow Block Bearing SB Inserts
- Pillow Block Bearing SA Inserts
- Pillow Block Bearing CS Inserts
- Pillow Block Bearing UCP
- Pillow Block Bearing UKP
- Pillow Block Bearing SAP
- Pillow Block Bearing SBP
- Pillow Block Bearing UCPA
- Pillow Block Bearing UKPA
- Pillow Block Bearing UCPH
- Pillow Block Bearing UKPH
- Pillow Block Bearing UCF
- Pillow Block Bearing UKF
- Pillow Block Bearing UCFL
- Pillow Block Bearing UKFL
- Pillow Block Bearing UCFC
- Pillow Block Bearing UKFC
- Pillow Block Bearing UCFA
- Pillow Block Bearing UKFA
- Pillow Block Bearing UCFB
- Pillow Block Bearing UKFB
- Pillow Block Bearing UCT
- Pillow Block Bearing UKT
- Pillow Block Bearing UCC
- Pillow Block Bearing SBPP
- Pillow Block Bearing SAPP
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Linear Bearing
- Standard Linear Bearing LM Series
- Adjustable Type Linear Bearing LM-AJ Series
- Open Type Linear Bearing LM--OP Series
- Lengthened Type Linear Bearing LM-L Series
- Standard Linear Bearing LME Series
- Adjustable Type Linear Bearing LME-AJ Series
- Open Type Linear Bearing LME-OP Series
- Lengthened Type Linear Bearing LME--L Series
- Standard Linear Bearing LMB Series
- Adjustable Type Linear Bearing LMB--AJ Series
- Open Type Linear Bearing LMB--OP Series
- Lengthened Type Linear Bearing LMB--L Series
- Round Flange Linear Bearing LMF Series
- Square Flange Type Linear Bearing LMK Series
- Oval Flange Linear Bearing LMH Series
- Round Flange Linear Bearing LMF--L Series
- Square Flange Type Linear Bearing LMK-L Series
- Oval Flange Linear Bearing LMH-L Series
- Pilot Flange Linear Bearing LMFP Series
- Pilot Flange Linear Bearing LMKP Series
- Pilot Flange Linear Bearing LMHP Series
- Pilot Flange Linear Bearing LMFP-L Series
- Pilot Flange Linear Bearing LMKP-L Series
- Pilot Flange Linear Bearing LMHP-L Series
- Middle Flanged Linear Bearing LMFC-L Series
- Middle Flanged Linear Bearing LMKC-L Series
- Middle Flanged Linear Bearing LMHC-L Series
- Round Flange Linear Bearing LMEF Series
- Square Flange Type Linear Bearing LMEK Series
- Round Flange Linear Bearing LMEF-L Series
- Square Flange Type Linear Bearing LMEK-L Series
- Middle Flanged Linear Bearing LMEKC-L Series
- Middle Flanged Linear Bearing LMEFC-L Series
- Round Flange Linear Bearing LMBF Series
- Square Flange Type Linear Bearing LMBK Series
- Round Flange Linear Bearing LMBF-L Series
- Compact Ball Bushing KH Series
- SC UU Slide Block Unit Series
- SC LUU Linear Case Unit Series
- SC VUU Linear Pillow Block Unit Series
- SBR UU Support Rail Unit Series
- SBR LUU Support Rail Unit Series
- TBR UU Support Rail Unit Series
- SCE UU Slide Block Unit Series
- SCE LUU Linear Case Unit Series
- SCE VUU Linear Pillow Block Unit Series
- Vertical Shaft Support SK Series
- Horizontal Shaft Support SHF Series
- Other Bearings
The role of motor bearing grease and lubrication method
by:JNSN
2021-12-26
Rolling bearing is an important mechanical component. Whether the performance of a motor can be fully utilized depends on whether the bearing is properly lubricated. It can be said that lubrication is a necessary condition to ensure the normal operation of the bearing. It is useful for improving the bearing capacity and use of the bearing. Life span plays an important role. Motor bearing models are generally lubricated with grease, but they are also lubricated with lubricating oil. 1 Lubrication purpose The purpose of bearing lubrication is to form a thin film of oil between the surface of the rolling element or the sliding surface to prevent direct metal contact. Lubrication reduces the friction between metals and slows down their wear; the formation of oil film increases the contact area and reduces the contact stress; ensures that the rolling bearing can operate normally for a long time under high-frequency contact stress and prolongs the fatigue life; eliminates frictional heat and reduces The working surface temperature of the bearing can prevent burns; it can prevent dust, rust and corrosion. Oil lubrication is suitable for high-speed bearings and can withstand a certain degree of high temperature, and it also plays a role in reducing bearing vibration and noise. Oil lubrication is roughly divided into: 3.3 Splash lubrication Splash lubrication is a commonly used lubrication method for rolling bearings in closed gear transmissions. It uses rotating parts such as gears and oil slingers to splash the lubricating oil. It is scattered on the bearing or flows into the pre-designed oil groove along the box wall into the rolling bearing to lubricate the rolling bearing, and the used lubricating oil can be recycled and reused in the box. Because rolling bearings do not require any auxiliary facilities when splash lubrication is used, they are often used in simple and compact gear transmissions. However, the following three points should be paid attention to when using splash lubrication: 1) The lubricating oil level should not be too high, otherwise the stirring oil will lose too much, and the oil will be lost. The orifice drips oil to the bearing to lubricate the bearing. The amount of oil used at the orifice root can be adjusted. The advantages of this lubrication method are: simple structure and easy to use; disadvantages: the viscosity is not easy to be too high, otherwise the oil will not drip smoothly, which will affect the lubrication effect. Therefore, it is generally used for low-speed and light-load rolling bearing lubrication. Oil bath lubrication is also called immersion oil lubrication, which is to immerse the bearing part in the lubricating oil, so that each rolling element of the bearing can enter the lubricating oil once during the operation, and bring the lubricating oil to other working parts of the bearing. Taking into account the stirring loss and temperature rise, in order to slow down the aging speed of lubricating oil, generally oil bath lubrication is not easy to use in high-speed bearings. The sediment in the pool, such as wear debris, is brought into the bearing part, causing abrasive wear. 2) The lubricating oil in the box should always be kept clean, and the magnetic adsorber can be used in the oil pool to remove the wear debris and foreign matter in time to reduce the occurrence of abrasive wear. 3) In the structural design, an oil storage tank and an orifice leading to the bearing can be set on the tank wall, so that the bearing is similar to the state of oil bath lubrication or drip lubrication, supplementary lubrication, and prevent insufficient oil supply. Oil circulating lubricating oil circulating lubrication is a way to actively lubricate the rolling bearing parts. It uses an oil pump to suck the lubricating oil from the oil tank, introduce it into the rolling bearing seat through the oil pipe and the oil hole, and then return the oil to the oil tank through the oil return port of the bearing seat, and use it after cooling and filtering. Therefore, this lubrication method can effectively dissipate frictional heat while dissipating more heat, so it is suitable for bearing support with large loads and high speeds. Oil injection lubrication is a kind of oil circulating lubrication. However, in order to allow the lubricating oil to fully enter the internal relative moving surface of the high-speed bearing, and at the same time to avoid excessive temperature rise and excessive frictional resistance due to the excessive circulating oil supply under high-speed operation conditions, the oil enters the bearing seat A nozzle is added to the port, and the oil supply pressure is increased, and the oil is sprayed onto the bearing by the nozzle to achieve lubrication and cooling of the bearing. Therefore, oil injection lubrication is a good lubrication method, mainly used for high-speed rolling bearings, and can be used for rolling bearings where the dmn value is greater than 2000000mm·r/min. The pressure of the oil pump for oil injection lubrication is generally about 3 to 5 bar. In order to overcome and avoid the wall effect under high-speed conditions, the injection speed of the nozzle outlet must reach more than 20% of the linear velocity of the rolling bearing. Oil mist lubrication is a kind of micro-lubrication, which uses a small amount of lubricating oil to meet the lubrication requirements of rolling bearings. Oil mist lubrication is to turn lubricating oil into oil mist in the oil mist generator, and lubricate the bearing through the oil mist. Because the oil mist condenses into oil droplets on the working surface of the rolling bearing, in fact the rolling bearing still maintains a thin oil lubrication state. When the linear velocity of the rolling element of the bearing is very high, oil mist lubrication is often used to prevent other lubrication methods from increasing the internal friction of the oil due to excessive oil supply and increasing the working temperature of the rolling bearing. Generally, the oil mist pressure is about 0.05 to 0.1 bar. However, the following two points should be paid attention to when using this lubrication method: 1) The viscosity of the oil should generally not be higher than 340mm2/s (40°C), because too high viscosity will not achieve the atomization effect. 2) The lubricated oil mist may partly escape with the air and pollute the environment. When necessary, an oil-gas separator can be used to collect oil mist, or a ventilation device can be used to remove exhaust gas. The oil-air lubrication uses a piston type quantitative distributor to send a small amount of oil to the compressed air stream in the pipe at regular intervals, forming a continuous flow of oil on the pipe wall and providing it to the bearing. Since new lubricating oil is often fed in, the oil will not age. Compressed air makes it difficult for external impurities to penetrate the inside of the bearing. The micro-supply of oil reduces the pollution to the surrounding environment. Compared with oil mist lubricating oil, oil-air lubrication has less and more stable quantity, small friction torque and low temperature rise. It is especially suitable for high-speed bearings.
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