12X21X30MM-manufacture,factory,supplier from China

(Total 24 Products for 12X21X30MM)
Product IntroductionLM12UU Linear Ball Bearing 12x21x30mm have bearing steel and stainless steel materials, both of which are made of high-quality materials with smooth surfaces and high hardness and toughness. LM12UU Linear Ball Bearing 12x21x30mm is a straight motion system that is used in combination with a guide shaft and utilizes the rolling motion of the ball to achieve infinite linear motion. Due to the point contact between the bearing ball and the shaft, the load is small.
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Product Introduction6006-2RS/C3  Bearing is belong to deep groove ball bearing .Also called single row deep groove ball bearing .Bearing No.Boundary Dimensions(mm)Basic Load Ratings(KN)WeightOPENShieldsSealsdDBCrCorKg(pc)6000ZZ2RS10 26 8 4.55 1.95 0.019 6001ZZ2RS12 28 8 5.10 2.40 0.022 6002ZZ2RS15 32 9 5.60 2.85 0.030 6003ZZ2RS17 35 10 6.00 3.25 0.039 6004ZZ2RS20 42 12 9.40 5.05 0.069 6005ZZ2RS25 47 12 10.10 5.85 0.0
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Product DetailsOur factory specializes in undertaking large-scale bearing orders with guaranteed quality, timely delivery, honest cooperation, and mutual benefit.
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Product Introduction51107 Single Direction Thrust Ball Bearing  has self-aligning function and uses high-quality bearing steel material,strictly produces according to national standards, and is sold both domestically and internationally.Model numberOil lubrication speed (r/min): 6000Domestic new model: 51107Domestic old model: 8107 Outer dimensionsInner diameter (mm): 35Outer diameter (mm): 52Width (mm): 12Basic rated loadCor (kN): 44.7Cr (kN): 20.4SpeedLubricating speed (r/min): 3900 Oil lubrication speed (r/min): 6000Weight (KG): 0.090Application51107 Single Direction Thrust B
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Product Introduction51108 Single Direction Thrust Ball Bearing uses high-quality bearing steel, advanced technology, and strict process inspection to ensure quality.Dimensinsd         40mmD        60mmT  13mmD1          42mmDa max       48mmd160mmda min52mm-ra max0.6mmrmin0.6mmA0.02Minimum load factor-Weightm114gBasic rated loadCa27000NBasic rated dynamic load, axialC0a63000NBasic rated static load, axialExtreme spee
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Product IntrodutionHGR15 Rail Dimensions Width:15mmHeight:15mmLength:4000mm(Could be cut according to the actual length used)HGR15 Rail can be used with HGH15CA, HGW15CA,HGW15CC, HGW15CB,HGL15CA, blocks according to different usage scenarios.Product ApplicationApplication direction of HGR15 Rail : mainly in mechanical machining centers, injection machines, tool machines, precision machining machines, automation devices, cutting machines, measuring instruments, grinders, door and window processing machinery, woodworking machinery, etcHG series guide railHGR15 Rail,HGR20
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Product IntroductionInch Size Tapered  Roller Bearing 09081/09196 is an uncommon model with an inner diameter of 20.625mm, an outer diameter of 49.225mm, and a thickness of 23.020mm.lubricated with grease at 8500r/min and oil at 11000r/min.
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Product IntroductionLM48548/LM48510 Inch Size Tapered Roller Bearing made of high-quality steel, it has excellent load-bearing capacity and wear resistance.By adopting optimized design and manufacturing processes, it can adapt to the requirements of high-speed operation.LM48548 is the inner ring, and LM48510 is the outer ring.LM48548/LM48510 Inch Size Tapered Roller Bearing inner diameter is 34.925mm, outer diameter is 65.0875mm, and thickness is 18.034mm.Weight 0.249kg.Cr (rated dynamic load): 48kn                       Cor (rated st
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Product Introduction14136A/276 Inch Size Tapered Roller Bearing is designed to align the vertices of the inner race raceway surface, outer race raceway surface, and roller rolling surface at a point on the bearing centerline.Industrial packaging or single cardboard box packaging can be used.In addition to the metric series products, there are also various English series products.Like 14136A/276 Inch Size Tapered Roller Bearing ,Suitable for withstanding heavy loads and impact loads.14136A/276 Inch Size Tapered Roller Bearing details:nner diameter: 34.925mmOuter diameter: 69.012mmWeight: 0
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Product IntroductionAbout Inch Size Tapered Roller Bearing 529x/522 parameter:Inner diameter: 50.800mm, outer diameter: 101.600mm, thickness: 34.925mm, type: single row tapered roller bearingInch Size Tapered Roller Bearing 529x/522 is made of high-quality bearing steel, it has the advantages of ultra-high speed and ultra silenceIn addition to the Inch Size Tapered Roller Bearing 529x/522, our company also recommends a series of bearings suitable for extreme environments such as high speed and high load.
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Product IntroductionLM78349/LM78310A  Inch Size Tapered Roller Bearing are bearings that support mechanical rotating bodies and reduce their friction coefficient during movement.LM78349/LM78310A  Inch Size Tapered Roller Bearing Specification Parameter:Inner diameter: d34.988mm      Outer diameter: D61.975mm       Weight (kg): 0.211          Grease lubrication: 5900        Oil lubrication: 7900ApplicationLM78349/LM78310A  Inch Size Tapered Roller Bearing represent the external dimensions an
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Production IntroductionMetric Tapered Roller Bearing 32021 32022 32024 32026 has specific size parameters and purposes.
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Product Introduction32205 Taper Roller Bearing is single row metic tapered roller bearing.The old domestic number is 7505.Its inner diameter is 25mm,outer diameter is 52mm,thickness is 19mm,weight 0.174kg.32205 Taper Roller Bearing use top presurre cage,super finishing rollers,Gcr15 materials.Before packging,our worker will measure inner ring,outer ring,assembly height.Ensure every products quality is qualified.In terms of use, the maximum speed of 32205 Taper Roller Bearing varies under different lubrication conditions.
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Product Introduction33206 Taper Roller Bearing are mainly used to withstand combined radial and axial loads, mainly radial loads, and are generally not suitable for bearing axial loads alone.
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Product Introduction Wheel Bearing Repair Kit R158.25 usually use in  Front Axle.It consist of two tapered roller bearings,and other parts.One size is 25*47*15,another is 32*58*17.Various bearing repair kits welcome inquiries.More details kindly contact me.OE NUMBERSAutomotive BearingsBRT1004     BRT1374DELPHIBK1059FEBI BILSTEIN26928FIAT71714466 71714467 46423870 5890991 51753789FIRST LINEFBK368  FBK506MGAKR3164  KR3124MOOGFIWB11547  FIWB11539QUINTON HAZELLQWB854  QWB682RUVILLE5825  5834Schaeffler FAG713690080  913690780SKFVKBA14
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Product IntroductionVKBA3596 Bearing Repair Kit - Your Ideal ChoiceIn car maintenance, choosing high-quality accessories is the key to ensuring driving safety and performance.
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Product IntrodutionLinear guideways are 4-row single-arc teeth contact linear courses. on the same time, they integrate heavy-obligation precision linear courses with optimized structural layout. compared with other linear courses, the load and rigidity are stepped forward it has the traits of 4-direction and different hundreds.
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Product IntroductionMiniature Linear Guideways are small in size and light in weight, especially suitable for miniaturized equipment. It adopts Gothic four-point contact design, which can bear loads in all directions, and has the characteristics of strong rigidity and high precision.
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Product Introdution  The  HGR45 Linear Guideway is a heavy-duty HG series linear guide rail made of S55C material, which can be used in conjunction with HGH45CA, HGW45CC, HGH45HA, and HGW45HC sliders.
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Product Introdution  HGH35HA Linear Guideway Block is used with HGR35 linear guideway together. HGH35HA Linear Guideway Block is an extended form of HGH35CA block, HGH35HA can hold larger loads.Dimensions of AssemblyH55mmH17.5mmN18mmDimensions of BlockW70mmB50mmB110mmC72mmL1105.8mmL138.2mmK122.5mmG12mmMxlM8x12mmT10.2mmH216mmH319.6mmDimensions of HGR45 RailWR34mmHR29mmD14mmh12mmd9mmP80mmE20mmMounting Bolt for RailM8x25mmBasic Load RatingC60.21kNC0136.31kNStatic Rated MomentMR2.29kN-mMp2.08kN-mMy2.08kN-mWeightBlock1.92kgRail6.3kg/mProduct applicationHGH35HA Linear Guideway Bl
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Product IntroductionLM10UU  Linear Motion Bearing 10x19x29mm belongs to standard linear bearings.
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Product Introduction Wheel Bearing Repair Kit R159.08 composed of two tapered roller bearings, one nut, one washer, and two rubber rings.Alao called VKBA540.The characteristics of a bearing repair kit are mainly reflected in its design concept, material selection, manufacturing process, and functional features. ‌Design concept: The repair kit focuses on precise maintenance and optimization of key components, aiming to provide high-quality accessories and professional repair tools to ensure the best maintenance effect during the repair process.
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Product Introduction DAC42840036 Wheel Hub Bearing is belong to First generation automotive bearings,This item number marked in SKF is BA2B444090AB,in FAG is 564727,in SNR is GB10857 S02,in IRB is IR-8039.Except our brands, we also can deal with OEM.  If you are finding this auto bearing,kindly contact us.The main function of a hub bearing is to bear weight and provide precise guidance for the rotation of the hub. It bears both axial and radial loads and is a very important component.
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Product IntroductionTapered Roller Bearing 30306 30x72x20.75 is a tapered roller bearing in the metric 30000 series.It uses stamped cages and high-quality bearing steel, making it more durable.The grease lubrication speed is 5600r/min, the oil lubrication speed is 7000r/min, the basic rated load (Cor) is 54.9kN, and the Cr (dynamic load) is 50.9kN.From raw materials to testing, we strive for excellence in every aspect and have won praise from our customers.Bearing NumberPrincipal Dimensions(mm)Basic Load Ratings(KN)Limiting Speeds(r/min)Weight/kgMounting Dimensions(mm)dDTBCr1minr2minCrCor
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Relate News
1. How to distinguish between heavy bearings and light bearingsActually, these differences are very obvious. Firstly, there is a difference in quality, which is mainly caused by two differences. The first difference is that in many cases, the material of lightweight bearings is different from that of heavy-duty bearings. You must understand this. In order to meet different industrial production or processing needs, bearings must have different performance. The different materials of various bearings are actually due to this reason.Another point is the difference in physical structure.
The high-temperature bearing needs to be replaced and new high-temperature lubricating grease needs to be added. However, this lubricating grease needs to be added just right, whether it's too much or too little won't work. How much does it need to be added specifically?What is the problem with adding too much lubricating grease to high-temperature bearings?Adding too much high-temperature lubricating grease can cause damage to the bearings.(1) Adding too much lubricating grease will increase the friction torque.
1、 What is bearing chamfer?Chamfer is a term used in mechanical engineering. In order to remove burrs caused by machining on parts and to facilitate assembly, chamfers are generally made at the ends of parts. Chamfering can be seen everywhere in our daily lives, on the borders of mobile phones, on tempered doors, on vases, and so on.The general purpose of chamfering is to remove burrs and make it aesthetically pleasing.
    On 15-18 May ,our company will participate 28th international machine tools,metalworking&automation machine tools,metalworking & automation technology exhibition in KUALA LUMPUR.     Welcome to our booth!    Booth number:3392Opening Hours:15-17 May (Wed-Fri.):10am-6pm18 May(Sat)               :10am-4pm
When determining whether the dismantled bearing can be reused, it is necessary to inspect the condition of the raceway surface, rolling surface, mating surface, wear of the cage, whether the bearing clearance has increased, and whether there are any damages or abnormalities that affect the decrease of dimensional accuracy after cleaning the bearing.
From September 30 to October 5, 2024, Türkiye Machine Tool Exhibition will be held in Istanbul as scheduled. During the exhibition, we received business cards from customers from Türkiye, Iran, Russia and many other countries, felt the enthusiasm of visitors and recognition of our products, and looked forward to cooperating with them.                                                         
In the field of materials science, bearing steel and high carbon steel are two widely used types of steel, each with unique performance advantages and specific application categories. This article aims to explore the core differences between the two and how to make reasonable choices based on actual needs.The subtle differences in performance and compositionThe primary difference lies in their performance. Bearing steel stands out due to its excellent hardness advantage, which is attributed to the high content of chromium element.
1. Overheating Overheating of the microstructure after quenching can be observed from the rough mouth of the SFC bearing parts. But to accurately determine the degree of overheating, it is necessary to observe the microstructure. If coarse needle like martensite appears in the quenched structure of GCr15 steel, it is a quenched overheated structure.
The bearing ring raceway is the surface of the bearing workpiece, and its quality will directly affect the working performance and service life of the bearing. During use, we often find common quality problems on the surface of bearing rings. How do these quality problems arise? Based on years of experience, here are common quality problems and their causes on the surface of bearing rings.1.
In recent years, ceramic bearings have been increasingly used in various fields, such as aviation, aerospace, navigation, petroleum, chemical, automotive, electronic equipment, metallurgy, power, textiles, pumps, medical equipment, scientific research, and national defense and military. The advantages of using ceramic bearings in new products are becoming increasingly apparent. The following is a specific understanding of the advantages of using ceramic bearing materials.The advantages of ceramic bearing materials mainly include the following:1.