Round hollows with round opening – KMM | bronzi e fonderia di ottone | colata continua verticale

Round hollows with round opening

Cast Specification

Size/weight

Materials/alloys

Application

Cast Specification

Cast Specification

Sizes (mm)	Tolerances (mm)	Max length till (m)	Straightening (rolling)	Straightness (mm/m)	Min wall thickness (%)
21,0 ≤ D < 25,0	D +0,4/-0,0	4,05 ±0,05	Yes	1,0	18%
25,0 ≤ D < 42,0	D +0,4/-0,0	4,05 ±0,05	Yes	1,0	17%
42,0 ≤ D < 100,0	D +0,6/-0,0	3,7 ±0,05	Yes	1,5	14%
100,0 ≤ D < 112,0	D +1,0/-0,0	3,7 ±0,05	Yes	1,5	14%
113,0 ≤ D ≤ 132,0	D +1,0/-0,0	3,7 ±0,05	No	1,5	14%
9,0 ≤ d < 48,0	d –0,6/+0,0	-	-	-	-
48,0 ≤ d < 112,0	d –1,0/+00	-	-	-	-

Size/weight

Size/weight

Finished size Ømm		Delivery sizes Ømm		Delivery weight
d1	D1	d	D	kg/m
10	20	9	21	2.6
11	22	10	23	3.1
15	24	14	25	3.1
15	25	14	26	3.5
15	26	14	27	3.86
15	30	14	31	5.5
15	32	14	33	6.4
15	35	14	36	7.8
15	36	14	37	8.3
15	40	14	41	10.5
15	45	14	46	13.6
15	50	14	51	17.0
15	54	14	55	19.9
15	55	14	56	20.8
16	22	15	23	2.3
16	27	15	28	4.0
16	30	15	31	5.3
17	28	16	30	4.6
18	24	17	25	2.5
18	26	17	27	3.2
18	27	17	28	3.6
18	29	17	30	4.4
18	34	17	35	6.7
18	35	17	37	7.7
18	39	17	40	9.3
18	44	17	45	12.3
18	49	17	50	15.6
20	28	19	29	3.5
20	30	19	31	4.4
20	32	19	33	5.3
20	35	19	36	6.7
20	39	19	39.5	8.6
20	40	19	41	9.4
20	45	19	46	12.5
20	50	19	51	15.8
20	55	19	56	19.6
20	60	19	61	23.7
20	65	19	66	28.1
20	70	19	71	32.9
20	75	19	76	38.1
24	32	23	33	4.1
24	38	23	39	7.1
24	42	23	43	9.4
24	44	23	45	10.7
24	46	23	47	11.9
24	49	23	50	14.0
24	70	23	71	31.8

Finished size Ømm		Delivery sizes Ømm		Delivery weight
d1	D1	d	D	kg/m
25	35	24	36	5.2
25	40	24	41	7.9
25	45	24	46	11
25	50	24	51	14.4
25	55	24	56	18.1
25	56	24	57	18.9
25	60	24	61	22.2
25	65	24	66	26.6
25	75	24	76	36.6
27	34	26	35	3.95
27	37	26	38	5.6
27	38	26	39	6.1
27	39	26	40	6.7
27	44	26	45	9.6
27	46	26	47	10.9
28	38	27	39	5.8
28	42	27	43	8.1
28	62	27	63	22.9
29	38	28	39	5.4
29	50	28	51	12.9
30	40	29	41	6.1
30	44	29	45	8.5
30	45	29	46	9.1
30	45	28	46	9.5
30	48	29	49	11.1
30	50	29	51	12.5
30	52	29	53	14.0
30	55	29	56	16.4
30	60	29	61	20.4
30	64	29	65	23.9
30	65	29	66	24.8
30	70	28	71	30.0
30	70	29	71	29.6
30	75	28	76	35.1
30	80	28	81	40.6
30	80	29	81	40.3
30	81	28	82	41.9
30	85	28	86	46.5
30	86	28	87	47.8
30	90	28	91	52.6
30	90	29	91	52.4
30	91	28	92	54.1
30	96	28	97	60.7
30	100	28	102	67.9
30	110	28	112	82.9
31	49	30	50	11.5
34	46	33	47	8.2

Finished size Ømm		Delivery sizes Ømm		Delivery weight
d1	D1	d	D	kg/m
34	53	33	54	13.1
34	68	32	70	27.4
35	55	34	56	14.2
35	60	34	61	18.2
35	65	34	66	22.7
35	70	33	71	28
35	75	33	76	33.2
35	80	33	81	38.6
35	81	33	82	39.8
39	56	38	57	13.0
39	60	38	61	16.1
39	64	38	65	19.8
39	98	38	99	58.9
40	55	39	56	11.7
40	60	39	61	15.8
40	65	39	66	20.2
40	69	39	70	24.0
40	70	38	71	25.6
40	70	39	71	25
40	75	38	76	30.6
40	75	39	76	30.2
40	76	38	77	31.8
40	77	39	78	32.2
40	80	38	81	36.1
40	80	39	81	35.6
40	81	38	82	37.3
40	85	38	86	42
40	86	38	87	43.2
40	90	38	91	48.2
40	90	39	91	47.7
40	91	38	92	49.5
40	96	38	97	56.1
40	100	38	102	63.2
40	110	38	112	78.2
40	120	38	122	94.7
44	75	43	76	27.8
44	87	43	88	41.7
45	65	44	66	17.5
45	66	44	67	18.3
45	70	44	71	22.1
45	70	43	71	22.7
45	80	43	81	33.3
45	81	43	82	34.5
45	85	43	86	39.2
45	86	43	87	40.4
45	91	43	92	46.7
45	96	43	97	53.3
45	100	43	102	60.4
45	105	43	107	67.7
45	120	43	122	91.9
50	67	49	68	15.9

Finished size Ømm		Delivery sizes Ømm		Delivery weight
d1	D1	d	D	kg/m
50	86	49	87	36.6
50	90	49	91	41.6
50	70	48	71	19.5
50	75	48	76	24.7
50	76	48	77	25.7
50	80	48	81	30.2
50	81	48	82	31.3
50	85	48	86	36
50	86	48	87	37.2
50	90	48	91	42.2
50	91	48	92	43.5
50	95	48	96	48.8
50	96	48	97	50.1
50	100	48	102	57.2
50	110	48	112	72.2
50	120	48	122	88.8
50	130	48	132	106.5
54	85	52	86	33.2
54	96	52	97	47.4
54	97	52	98	48.6
55	80	53	81	26.7
55	81	53	82	27.8
55	85	53	86	32.5
55	100	53	102	53.8
55	86	53	87	33.7
55	105	53	107	61.1
55	115	53	117	76.7
59	85	57	86	29.5
60	80	58	81	22.8
60	81	58	82	23.9
60	85	58	86	28.7
60	86	58	87	29.9
60	90	58	91	34.8
60	91	58	92	36.2
60	95	58	96	41.4
60	96	58	97	42.7
60	100	58	102	50.1
60	110	58	112	65.1
60	120	58	122	81.4
60	130	58	132	99.2
65	85	63	86	24.4
65	86	63	87	25.7
65	90	63	91	30.6
65	91	63	92	31.9
65	95	63	96	37.2
65	96	63	97	38.5
65	105	63	107	53
65	115	63	117	68.9
65	125	63	127	85.9
70	90	68	91	26.1
70	91	68	92	27.4

Finished size Ømm		Delivery sizes Ømm		Delivery weight
d1	D1	d	D	kg/m
70	95	68	96	32.6
70	96	68	97	34.1
70	100	68	102	41.1
70	110	68	112	56.1
70	120	68	122	72.6
70	130	68	132	90.4
75	95	73	96	27.7
75	96	73	97	29.1
75	100	73	102	36.2
75	105	73	107	43.8
75	110	73	112	51.2
75	115	73	117	59.5
75	120	73	122	67.7

Finished size Ømm		Delivery sizes Ømm		Delivery weight
d1	D1	d	D	kg/m
75	125	73	127	76.5
80	100	78	102	31.4
80	105	78	107	38.8
80	110	78	112	46.4
80	120	78	122	62.8
80	125	78	127	71.5
80	130	78	132	80.6
80	135	78	137	90.0
85	125	83	127	65.9
90	115	88	117	42.9
90	120	88	122	50.9
90	130	88	132	69.1

Materials/alloys

Materials/alloys

Bronzo allo stagno	KMM lega principale	Leaded tin bronze	High-leaded tin bronze	Bronzo al piombo / Gun Metal	Lega a basso contenuto di piombo per acqua potabile
CuSn10Zn2-C CuSn11P-C CuSn12-C CuSn12Ni2-C CuSn10-C	CuSn5Zn5Pb2-C	CuSn11Pb2-C CuSn7Zn2Pb3-C	CuSn7Zn4Pb7-C CuSn5Pb9-C CuPb10Sn10-C CuSn7Pb15-C CuSn6Pb16-C	CuSn5Zn5Pb5-C CuSn3Zn8Pb5-C	CuSn4Zn2PS-C CuSi4Zn9MnP-C CuNi7Si2

Application

Application

bearings of cranes and elevators;
minor machine tool bearings;
piston pin bushes for load up to 50N/mm2;
bearing for packing machines and electric motors;
general bearing in mechanical engineering;
valve and gate seat rings;
guide bushes in hydraulic cylinders;
slip rings.