NJ2317 Cylindrical Roller Bearing 85x180x60 MM NJ2317E For Excavator Bearing

• NJ2317 Cylindrical Roller Bearing 85x180x60 MM NJ2317E For Excavator Bearing

Cylindrical roller bearings are divided into three categories: single-row cylindrical roller bearings, double-row cylindrical roller bearings, and four-row cylindrical roller bearings.                                                                     
 

Single row cylindrical roller bearings
 
NU type bearings have ribs on both sides of the outer ring and no ribs on the inner ring. The N-type bearing has ribs on both sides of the inner ring and no ribs on the outer ring. Therefore, within a certain range, the crankshaft is allowed to make two-way axial displacement relative to the bearing housing, that is, it can withstand the length change of the crankshaft caused by thermal expansion. Therefore, it is suitable for non-locating bearings.
 
NJ-type cylindrical roller bearings have ribs on both sides of the outer ring and ribs on one side of the inner ring. NF cylindrical roller bearings have ribs on both sides of the inner ring and ribs on one side of the outer ring. Thus, axial positioning in one direction can be provided for the crankshaft.
NUP cylindrical roller bearings have ribs on both sides of the outer ring, ribs on one side of the inner ring, and movable ribs on the other side. Therefore, the bearing can be bidirectionally positioned on the shaft.
It also produces high-precision single-row cylindrical roller bearings with a 1:12 tapered inner ring for machine tool spindles.
Double row cylindrical roller bearings
The double row cylindrical roller bearings produced are all precision grade bearings for machine tool spindles, and can also be used in other precision machinery. NN type has ribs on the inner ring and no ribs on the outer ring. The NNU type has ribs on the outer ring and no ribs on the inner ring. In order to facilitate the user to install the lubricating device, the outer ring has oil grooves and oil holes as the main structure (suffix code W33 type), and can provide products with two structural forms of cylindrical hole and conical hole according to user needs.
                                                                                                                                                           
 

• Our ability

We can produce many categories and more than 6000 specifications of high-quality bearing products for various purposes and performances, which are sold well in various provinces, municipalities, autonomous regions and more than 50 countries and regions in the world. Many bearing products have won national silver medals and provincial and municipal high-quality bearings.
1. According to the application field, the bearings are divided into: automotive bearings, agricultural machinery bearings, machine tool bearings, motor bearings, fan bearings, textile machinery bearings, mining machinery bearings, paper machinery bearings, chemical machinery bearings, cement plant bearing maintenance, power plant bearings, etc.
2. According to the bearing type, it is divided into: deep groove ball bearing, self-aligning ball bearing, angular contact ball bearing, cylindrical roller bearing, tapered roller bearing, spherical ball bearing with seat, thrust ball bearing, self-aligning roller bearing, Combined rolling bearings such as thrust angular contact ball bearings and thrust spherical roller bearings.
3. According to the characteristics of use: stainless steel bearings, high temperature bearings, low temperature bearings, corrosion-resistant bearings, high-speed bearings, insulating bearings, silent bearings, chemical fiber bearings, vacuum bearings, fitness equipment bearings, self-lubricating bearings, anti-magnetic bearings, anti-sulfur bearings.
 
 
 

• Factory operation workshop

• Lead time and delivery

We stock most of popular models of bearing, and delivery can be arranged in short time for your urgent request.
 
We can arrange delivery by express, for example DHL, FEDEX, TNT, UPS, EMS, ShunFeng. Or by air cargo to local airport. For any large amount of bearing request, we are able to arrange delivery by sea/boat.