NNTR Series

The NNTR Roller have an outer ring of great thickness necessary to guarantee the mechanical resistance suitable for limiting deformations under load to a minimum and withstanding shocks in the best possible way. The rounded external profile allows to compensate for possible misalignments present in the parts surrounding the bearing, to reduce the Hertzian contact pressure and therefore to guarantee less wear and a longer life of the counter track. The full complement of rollers execution allows these support rollers to withstand high loads, while keeping the overall dimensions reduced. The presence of integrated and grinded flanges in the outer ring allow these bearings to be used in applications where there is the presence of axial loads. They are mainly used on camshaft, as pressure rollers and as wheels in conveyors

CODE	Weight	Dimensions (mm)										Load Rating		Fatigue limit load	RPM (2)
		d	D	B	C	D₁	d₂	d₃	r₁	r₂	n (1)	din.	stat.	Fatigue limit load	RPM (2)
												C_W	C_0W	P_UW	n_DGrease
	g		h10						min	min	n°	KN	KN	KN	min^-1
NNTR 50x130x65-2ZL	5,2	50	130	65	63	80	63	6	2	3	3	226	285	37	1.100
NNTR 55x140x70-2ZL	6,4	55	140	70	68	91	73	4	2	3	3	275	365	44,5	850
NNTR 60x150x75-2ZL	7,8	60	150	75	73	97	78	4	2	3	3	310	420	53	800
NNTR 65x160x75-2ZL	8,8	65	160	75	73	103	82	5	2	3	3	335	445	56	700
NNTR 70x180x85-2ZL	13	70	180	85	83	115	92	5	2	3	3	430	590	75	600
NNTR 80x200x90-2ZL	16,8	80	200	90	88	127	102	5	2	4	3	510	700	87	500
NNTR 90x220x100-2ZL	22,5	90	220	100	98	146	119	5	2,5	4	3	630	910	104	400
NNTR 100x240x105-2ZL	28	100	240	105	103	160	132	6	2,5	4	6	720	1080	118	340
NNTR 110x260x135-2ZL	35,6	110	260	115	113	174	143	6	2,5	4	6	860	1310	143	300
NNTR 130x310x146-2ZL	65,2	130	310	146	144	204	165	8	3	5	6	1290	2010	216	240

Bearing with lip seal (suffix .2RS); Admissible operating temperature -30°C up to 120°C

(1) N° of holes for internal lubrication

(2) N° of RPM with continous functioning and for grease lubrication