• Model NO.：NJ211E
• Feature：Low Noise and Low Vibration
• Precision：P0,P6,P5,P4
• Vibration：V1. V2. V3. V4
• Clearance：C0,C2,C3,C4,C5
• Price：Competitive
• Place of Origin：Hebei, China (Mainlkand)
• Structure：Cylindrical
• Standard.：ISO9001:2008
• Transport Package：as Customer′s Requirement
• Specification：OEM standard
• Trademark：XTSKY
• Origin：China Mainland
• HS Code：8482101000
• Production Capacity：2X20gp Per Month

Basic Info.

Model NO. NJ211E Feature Low Noise and Low Vibration Precision P0,P6,P5,P4 Vibration V1. V2. V3. V4 Clearance C0,C2,C3,C4,C5 Price Competitive Place of Origin Hebei, China (Mainlkand) Structure Cylindrical Standard. ISO9001:2008 Transport Package as Customer′s Requirement Specification OEM standard Trademark XTSKY Origin China Mainland HS Code 8482101000 Production Capacity 2X20gp Per Month

Product Description

Structure:	Cylindrical	Type:	Roller	Brand Name:	ABL
Bore Size:	15 - 400 mm	Outside Diameter:	35 - 600 mm	Model Number:	NJ211E.TVP2
Precision Rating:	P0,P6,P5,P4	Seals Type:	Open	Number of Row:	Single Row
Place of Origin:	Shanghai, China (Mainland)	Width:	11-126 mm	Material:	Chrome steel
Cage:	Brass, Steel, Nylon	Package:	as buyer's request	Clearance:	C0,C2,C3,C4,C5
Vibration:	V1, V2, V3 Available	Standard:	ISO9001:2008	Sample:	available
OEM:	available	ODM:	available

NJ207E.M1.C3	NJ2211E.TVP2	NJ2309E.M1.C3	NJ310E.TVP2
NJ207E.TVP2	NJ2211E.TVP2	NJ230E.M1.C3	NJ311E.M1.C3
NJ207E.TVP2	NJ2212E.M1.C3	NJ230E.M1.C3	NJ311E.TVP2
NJ208E.TVP2	NJ2213E.M1.C3	NJ2311E.TVP2	NJ312E.M1.C3
NJ209E.TVP2	NJ2213E.TVP2	NJ2312E.M1.C3	NJ312E.M1.C3
NJ210E.M1	NJ2214E.M1.C3	NJ232E.M1	NJ312E.TVP2
NJ210E.TVP2	NJ2215E.M1.C3	NJ232E.M1.C3	NJ312E.TVP2
NJ210E.TVP2	NJ2218E.M1.C3	NJ2334EX.M1.C3	NJ313E.M1.C3
NJ210E.TVP2.C3	NJ2219E.M1.C3	NJ236E.M1	NJ313E.TVP2
NJ211E.TVP2	NJ2220E.M1.C3	NJ236E.M1	NJ314E.TVP2
NJ211E.TVP2	NJ2222E.M1.C3	NJ236E.M1.C3	NJ314E.TVP2
NJ212E.M1.C3	NJ2224E.M1.C3	NJ238E.M1	NJ314E.TVP2.C3
NJ212E.TVP2	NJ2224E.TVP2	NJ238E.M1.C3	NJ315E.M1.C3
NJ212E.TVP2	NJ2226E.M1.C3	NJ248E.M1	NJ315E.M1.C3
NJ213E.M1.C3	NJ2226E.TVP2	NJ303E.TVP2	NJ315E.TVP2
NJ214E.M1.C3	NJ2228E.M1.C3	NJ304E.TVP2	NJ316E.M1.C3
NJ214E.M1.C3	NJ2228E.M1.C3	NJ304E.TVP2	NJ316E.TVP2
NJ215E.M1.C3	NJ2228E.M1.C3	NJ305E.TVP2	NJ316E.TVP2
NJ215E.TVP2	NJ222E.M1.C3	NJ306E.TVP2	NJ317E.M1.C3
NJ216E.M1.C3	NJ222E.M1.C3	NJ306E.TVP2	NJ317E.M1.C3
NJ217E.M1.C3	NJ222E.M1.C3	NJ307E.M1.C3	NJ317E.TVP2
NJ217E.TVP2	NJ222E.M1.C3	NJ307E.TVP2	NJ318E.M1.C3
NJ218E.M1.C3	NJ2230E.M1.C3	NJ307E.TVP2	NJ319E.TVP2
NJ2205E.TVP2.C3	NJ2232E.M1.C3	NJ308E.M1.C3	NJ320E.M1.C3
NJ2206E.TVP2	NJ224E.M1.C3	NJ308E.TVP2	NJ320E.M1.C3
NJ2208E.M1.C3	NJ224E.M1.C3	NJ308E.TVP2	NJ320E.TVP2.C3
NJ2209E.M1.C3	NJ226E.M1.C3	NJ309E.M1.C3	NJ322E.M1.C3
NJ2209E.TVP2	NJ228E.M1.C3	NJ309E.TVP2	NJ324E.M1.C3
NJ220E.M1.C3	NJ228E.M1.C3	NJ310E.M1.C3	NJ326E.M1.C3
NJ2210E.M1.C3	NJ2307E.TVP2	NJ310E.TVP2	NJ336E.M1.C3
			NJ336E.M1.C3

Cylindrical Roller Bearings
Rolling body is a cylindrical roller rolling bearing to the heart. Cylindrical Roller Bearings The internal structure of the roller was 90 ° perpendicular cross arrangement (which is also a cross roller bearing origin of the name), equipped with a space between the roller cage or spacers can be prevented inclined roller or rollers mutual grinding between police, effectively preventing the increase of rotational torque.
Bearing Features
1. roller and the raceway is in line contact or repair offline contacts, radial load capacity, suitable to withstand heavy load and shock load.
2. The friction coefficient is small, suitable for high-speed, speed close to the deep groove ball bearings.
3. N type and NU type can move axially, able to adapt due to thermal expansion or installation error of shaft and housing caused by the relative change in position can be used for supporting the free end.
4. shaft or housing bore machining are higher, install the rear bearing outer ring axis relative deflection should be strictly controlled to avoid contact stress concentration.
5. The inner or outer detachable, easy installation and removal.
Product Features
Cylindrical roller line contact with the raceway, large radial load capacity. Both to withstand heavy load and impact load, but also for high-speed rotation.
Cylindrical roller bearings raceways and rolling lanes geometry. After the improved design, with high load carrying capacity, the new design ribs and roller end, not only improves the axial bearing capacity, while improving the roller end wall contact areas and lubrication conditions, improved performance of the bearing.
 
Use application
Bearing use
Medium-sized motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, gear boxes, rolling mill, vibrating screen, and lifting transportation machinery.
Accuracy class
Cylindrical Roller Bearings PO, P6, P5, P4, P2. Accuracy class sequentially from low to high ranking can be divided according to level of accuracy.
 
Commonly used to adjust the full complement cylindrical roller bearings radial clearance as follows:
1, cylindrical and oval bearing backlash, can be manually scrape or bearing equatorial plane after turning padded scratch repair method of adjusting.
2, cylindrical and oval bearing the headspace, can be hand-scrape method or circumstances permit bearing the equatorial plane padded adjustments.
3, for more oil wedge fixed bearing, in principle, allow repair scratch and adjust the bearing clearance, the gap should be replaced with new tile inappropriate.
4, for more oil wedge tilting bearing, does not allow repair scratch pad, the gap should be replaced due to inappropriate tile. The thickness of the adjustable tile, tile can be adjusted by the amount of the adjustment in the next block behind tile plus stainless steel pad, thickness or thinned adjustment block approach. Note for more oil wedge tilting bearing, among the same group of tile thickness error should be less than 0.01mm.
 
Note issue
Vibration aspects
In normal use, the vibration of the bearing damage is very sensitive, peeling, indentation, corrosion, cracks, wear, etc. will be reflected in the bearing vibration measurement. So, through the use of special bearing vibration measurement device (frequency analyzer, etc.) to measure the size of the vibration, the frequency distribution can be inferred by abnormal circumstances. The measured values due to the use of conditions or bearing sensor installation location, etc., and thus requires prior to each machine measurements were determined after analysis and comparison criteria.
Terms of temperature
High temperature frequently expressed cylindrical roller bearings are in an abnormal situation. High temperature is also harmful to the bearing lubricant. Sometimes bearing overheating can be attributed to the bearing lubricant. If the bearing temperature over 125 ºC even move to reduce long-term bearing life. Causes high temperature bearings include: lack of lubrication or excessive lubrication, bearing raceways containing impurities, the speed limit is too high, bearing long-term overload and so on.