High Precision Cylindrical Roller Bearing NJ212E

Top Manufacturer High Precision Cylindrical Roller NJ212E Bearing

Product Information

We can supply related products

Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear

radial load. The friction between the rolling element and the ring flange is small, which is

suitable for high-speed rotation. Depending on whether the ferrule has ribs, it can be divided

into single-row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double-row

cylindrical roller bearings such as NNU, NN. The bearing has a separable inner and outer

ring structure.

Cylindrical roller bearings with no ribs on the inner or outer ring, the inner and outer rings

can move relatively in the axial direction, so they can be used as free-end bearings.

Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and

a single rib on the other side can withstand a certain degree of axial load in one direction.

Steel stamped cages or copper alloy solid cages are generally used. However, some use

polyamide molding cages.

About us

Guangzhou Huilian Machine Co., Ltd is a professional supplier for hydraulic breaker parts

and excavator parts and OEM hydraulic seals manufacturer. We specialize in completed

seal kits and separate seals for hydraulic breaker and excavator more than Ten years in

Guangzhou, China. KOKO Shop supply almost all brands breakers’ parts like seal kits,

diaphragm, Piston, Chisel, Wear Bush upper and lower, Rod pin, Through Bolts, Side

Bolts, Control Valve, Front Head, Cylinder, Accumulator, N2 Gas Charging Kit, etc. Also

supply almost all brands excavator’ parts like hydraulic cylinder boom arm bucket seal

kit, hydraulic pump and travel swing motor etc. We insist on high quality parts with

genuine and OEM after market replacement parts.

FAQ
Q1.How many days for the delivery time?
A: It is about 3-7days after the order confirmation.

Q2. What kind of payments you accept?
A:Now we accept T/T, L/C or Western Union, other terms also could be negotiated.

Recommended Trade Assurance to guarantee buyer's property.

Q3. Are you able to manufacturing products according to customer's design?
A:Sure, we have made many special orders from oversea for 10 years since 2010.

So we have enough ability to deal with any cxs. OEM certifiCATEEEEEEEEEEe is available to provided.

Q4. What's your advantages in the machinery manufacturing industry?
A:Fast delivery time, High quality products, Best customer service.

Adopting the latest production technology.

Q5. Which countries have you been exported recently?
A:Canada, Australia, Peru, Egypt, Brazil, Mexico, South Africa, etc.

Q6. How about the packing of the goods?
A:Standard export package, wood cxs, or as customers' demands.

Koko Shop Machine Co.,Ltd (Huilian Machinery) found in 2011, is a professional supplier who is specializd in construction machinery parts for excavator and attachments, including Hydraulic Hammer, Hydraulic Breaker Spare Parts, Quick Coupler, Hydraulic Grab, Ripper, Vibrator, etc. And, Excavator parts Engine, Hydraulic Pump, Swing motor, Travel motor, Main control Valve, Swivel Joint, Hydraulic seal kit. After 12 years developments, Huilian Machinery factory make quality parts with it's advance technology and advance machines. Hydraulic Breaker Parts suitable for: Atlas copco, Soosan, Furukawa, Atlas Copco, Alpha, Bretec, BTI, CATEEEEEE, CP, Daemo, DMB, Alicon, D&A, Doosan, EDT, Epiroc, Everdigm, Fine, Furukawa, General GB, Hammeroc HR, Hyundai HDB, Indeco HP MES, JCB, Kent, KCB, Komac, Komatsu JTHB, JKHB, Korota, Krupp, Kwanglim, Konan, Montabert, MSB, MTB, Noah, NPK, Okada, OKB, Omal, Poqutec, Powerking, Promove, Rammer, RB Hammer, RBI, Rhino, , Soosan, Stanley, Teisaku, T&H, Toku, Toyo, UBTECH, ECand so on. Hydraulic Excavator Parts suitable for: Komatsu, Hitachi, EC, Hyundai, Kobelco, Sumitomo, Kato, Doosan, JCB, cx, Sany, Liugong, XCMG, Xugong, Zoomlion, etc. OEM and ODM service offered.

In order to meet different customers' needs, Huilian Machinery also purchases Genuine Parts from German, Japan, Korea. And we established a long-term business relationship with customers from all over the world, like: U S A, Mexico, Saudi Arabia Kenya, Algeria, UAE, Russia, Morocco, etc. In 2023, Huilian Machinery became Distributors of easywork engineering machinery (SANY Group) in Russia and indonesia.

Koko Shop Machine is continuously seeking the chances to meet all the friends both from home and abroad for win-win cooperation.

And we believe that quality parts will take us to a further place. Let’s build a better tomorrow, together!

Introduction to Koko Shop Company

CertifiCATEEEEions

Enteprise Honor

Service Brand

Our Factory

Koko Shop Machine Management Department is an important control method for processing quality. It equipped with the most advanced inspection equipments The professional control devices,it can provide accurate reference data to choose the most suitable material and accessories, which also effectively control parts quality. Besides, it also provides digital information for engineers and quality controller to determine feasibility for spare parts after processing. This is the working processing of quality control.

Chooing steady quality supplier. After purchasing raw material, duing testing if it is proved well, then we will arrange these eligible matrial that come into warehouse.

When the spare parts finish and come into testing working conditon. Every worker will be responsible for their spare parts. They will give out fact testing date and results. After proving testing date is accord with delivery standard. Then Koko Shop Machine Quality Management Department will allow these spare parts that go to packing department and packing.

Before delivery, Koko Shop Machine Quality Management Department should check all mark and packing conditon. If it is prove it is accord with exporting standard and customer's requirement. Then they will allow these equipment come into fininshed product area. 

Of course Koko Shop Machine Quality Management Department have the right to make sample testing for every production step to make sure product quality.