BACK UP ROLLERS FOR METAI FLATTENING AND STRAIGHTENING MACHINES

Characteristics

Back-up rollers for metal flattening machines are made in two different executions:

1.full complement of cylindrical rollers

2.with roller cages in mould steel or bronze.

Back-up roller is very impotant in the flattening processes: choose the high quality of MONTON bearings means to improve the machining tolerances and to significantly reduce the cost.

Back up rollers for steel industry, mainly used in the flattening and straightening lines of steel, stainless steel, aluminium sheets.

In addition, the range also includes double back-up rollers with pin, back-up rollers with tapered rollers, simple support rollers.

The full complement execution allows the bearing to reach a high load capacity both dynamic and static.

Back-up rollers with pivot for metal flattening machines have the following characteristics:

The outer ring is supplied in Gcr15 core hardened steel that can reach hardness 60-2 HRC.
Once seen the condition of coupling with working cylinders, the degree of hardness can be reduced to 53/58 on request.
The profile of the outer ring is usually cambered in order to optimize the distribution of the applied load.

The pivot is made in two different steel types, according to dimension and shape:
1) core hardened steel Gcr15/100 CrMo7;
2) case hardened steel 18 NiCrMo5.
In both cases the degree of hardness is 60-HRC.

The bearings have a grease lubrication system and are supplied already pre-lubricated. The lubrication system foresees both the entrance and the exit of grease. They can be supplied also in Long-life execution.

The sealing system is very efficient, it does not allow outer agents (such as, dust, mill scale, humidity) to enter the back-up roll; at the same time, it prevents the leakage of grease.

Precision class P0; on request the rollers can be manufactured with precision class P5 (DIN 620) and selected in groups.

Back-up roller advantages:
1) Excellent and high quality control
2) Prompt delivery
3) Competitive price
4) OEM service
5) Customers' drawing or samples accepted

List of customized parts from customer:

Designation	d	D	H	A	B	Cw	Cow	RPM
BUR47145A	20	47	145	116.6	115	87	105	5600
BUR47145B	20	47	145	115.6	115	87	105	5600
BUR74192A	40	74	192	151.8	150	155	205	4000
BUR74192B	40	74	192	151.8	150	155	205	4000
BURT112230A	40	112	230	170	150	403	759	800
BURT68230B	28	68	230	200	85	254	459	1200

select	Designation	d (mm)	D (mm)	L (mm)	B (mm)	E (mm)	h (mm)	Rollers Rows	Cw (KW)	Cow (KW)
	MT 24.5X12X75	12	24.5	75	41	43		2	10	16.8
	MT33X19X90	19	33	90	57	58		2	18	33
	MT 47X20X155	20	47	155	125	126	-	4	57,2	65,9
	MT 47X22X145	22	47	145	115	-	21	2	46,4	49,2
	MT 50X20X165	20	50	166	128	130	-	4	69,1	83,2
	MT 52X20X55	20	52	55	24	27,4	-	2	33	43
	MT 52X20X125	20	52	125	94	95	-	4	65,1	77,7
	MT 55X25X159.5	25	55	159,5	125	-	21	4	100,4	131,8
	MT 60X25X90	25	60	90	50	52	-	2	36,2	43
	MT 60X25X160	25	60	160	130	132	-	2	71,3	84,3
	MT 60X25X170	25	60	170	130	132	-	2	71,3	84,3
	MT 60X30X151.25	30	60	151,25	109,25	111,3	27	2	70,2	82
	MT 60X30X189	30	60	189	160,3	-	25	2	72,4	85,3
	MT 60X30X201	30	60	201	160,3	-	-	2	72,4	85,3
	MT 60X30X202	30	60	202	160,3	162	27	2	72,4	85,3
	MT 65X25X198	25	65	198	156	168	21,5	4	124,2	170,6
	MT 75X40X165	40	75	165	140	143	29,5	4	149	208,5
	MT 76X40X165	40	76	165	140	143	30	4	152,3	213,8
	MT 80X35X201	35	80	201	160,3	-	-	2	111,2	115,6
	MT 80X35X210	35	80	210	170	-	-	2	111,2	115,6
	MT 80X35X230	35	80	230	200	-	30,5	2	114,5	118,8
	MT 80X35X302.5	35	80	302,5	261,8	-	-	2	111,2	115,6
	MT 80X40X180	40	80	180	140	143	-	4	127,5	171,7
	MT 80X40X210	40	80	210	150	156	-	4	136	188
	MT 90X45X134.3	45	90	134,3	100	102	-	2	139,3	167,4
	MT 90X45X140	45	90	140	100	102	-	2	157,7	195,5
	MT 95X45X288	45	95	288	236	240	-	2	173,9	229
	MT 95X45X362	45	95	362	310	314	-	2	179,3	238,7
	MT 100X45X245	45	100	245	200	201,4	-	2	175	231,1
	MT 100X45X246	45	100	246	200	201,4	-	2	175	231,1
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BACK-UP ROLLERS

BACK-UP ROLLERS