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)
	NNU4180M/W33/P69/HV2	400	650	250	6	463	4700	9550	1000	1250	-	-	-	568	-	-	426	624	5	331
	NNU4180EMA/HCC9	400	650	250	6	463	4700	9550	1000	1250	-	-	-	568	-	-	426	624	5	333.2
	NNU4180M/HC/C3	400	650	250	6	463	4700	9550	1000	1250	-	-	-	568	-	-	426	624	5	329
	NNP0684/C3	420	600	220	-	470	-	-	-	-	-	-	-	-	-	-	-	-	-	205
	NNP0684/C3	420	600	220	-	470	-	-	-	-	-	-	-	-	-	-	-	-	-	205
	NNU4084/C3Y	420	620	200	4	473	3450	7500	750	900	-	-	-	556	16.7	9	440	600	4	219.8
	NNU4084M/C3	420	620	200	4	473	3450	7500	750	900	-	-	-	556	16.7	9	440	600	4	207.2
	NNU4184M/W33	420	700	280	6	490	5470	11200	-	-	-	-	-	-	-	-	-	-	-	444
	NNU4184X1M/HC	420	760	280	6	514	5020	9570	-	-	-	-	-	-	-	-	-	-	-	566
	NNU4184X1M/HC-1	420	760	280	6	514	5020	9570	-	-	-	-	-	-	-	-	-	-	-	566
	NNU4984MK/W33	420	560	140	4	4	466	-	1510	4420	850	1000	-	515	17.7	9	436	539	2	101.3
	NNU4984/W33	420	560	140	4	4	466	-	1510	4420	850	1000	-	515	17.7	9	436