Dalian Metallurgical Bearing Co.,Ltd

Dalian metallurgy provides many cylindrical roller bearings of different designs, size series and sizes. Most of them are single row bearings with a cage. In addition, single row and double row full roller bearings (without cage) constitute the standard configuration of bearing varieties used in general engineering by AWD. The bearing with cage can bear large radial load and run at high speed. Full roller bearings are suitable for very heavy radial loads at medium speeds. & nbsp; & nbsp; & nbsp; cylindrical roller bearing, roller is one of the key components. Its geometry, the so-called logarithmic shape, provides the best stress distribution in the contact area of the bearing. Its surface finish can promote the formation of lubricant film and optimize the rolling of roller. Compared with traditional design, the benefits from simultaneous interpreting include increasing operational reliability and greater tolerance for misalignment. dyzv cylindrical roller bearing has the following design features: 1. Optimizing the design of roller and flange can improve the axial bearing capacity of bearing 2. Optimize the geometric surface design between roller and raceway to balance the radial load 3.limit the width of the wheel cross groove, increase the contact area between the raceway and the roller and improve the radial bearing capacity 4. Adopt high standard materials and strictly control the content of elements in materials, such as Ti & lt; 30ppm (titanium content) 5. Low noise design is adopted to achieve V1 noise level, which is conducive to low noise operation of automobile engine and gearbox.

Bearing symbol	Principal dimensions (mm)							Basic rated load (KN)		Limit speed r/min		Fitting dimension mm							Weight(kg)
	d	D	B	rsmin	r1smin	F	E	Cr	Cor	Grease	Oil	damin)	da(max)	db(min)	Da(max)	Da(min)	ra(max)	rb(max)
	NNU4956	280	380	100	2.1	2.1	312	-	870	2200	1300	1600	-	347	15	6	291	369	2	33.8
	NNCF5056V/HV2	280	420	190	-	-	-	-	2800	5300	-	-	-	-	-	-	-	-	-	90
	AD5156BW	280	460	124	5	321	-	-	2010	3080	-	-	-	-	-	-	-	-	-	83.5
	NNCF5056CV/HV2	280	420	190	4	311	-	-	2800	5300	-	-	-	-	-	-	-	-	-	90
	NNU4160M	300	500	200	5	351	2360	4850	900	1100	-	-	-	-	-	-	-	-	-	158
	NNU4960	300	420	118	3	3	339	-	1050	2800	1000	1800	-	379	17.7	9	314	406	2.5	52.6
	NN4960/W33	300	420	118	3	3	-	-	1190	2770	-	-	-	-	-	-	-	-	-	51.5
	NNU6/310/HCC9	310	500	150	5	5	-	360	1930	3600	-	-	-	-	-	-	-	-	-	117.6
	NNU3064	320	480	121	4	362	-	-	1510	2960	-	-	-	-	-	-	-	-	-	77.3
	NN3064/W33	320	480	121	4	438	1500	2910	1100	1400	-	-	377	-	17.7	8	336	464	3	77.1
	NNU4064M/W33	320	480	160	4	360	2070	4250	1100	1300	-	-	-	424	18	8	336	464	4	102
	NNU4964M/W33	320	440	118	3	3	359	-	1200	3040	1100	1400	-	399	17.7	9	334	426