The obvious difference between type A and type B sprocket is that, you can find a hub on type B, but no hub on type A. ANSI sprocket works with A series roller chain, no matter it's A or B type. Please find dimensions of plate wheel sprocket 40-80(08A-16A) here.

1. ANSI Plate Wheel Kedjehjul 40(08A-1-2)

z	de	dp	ENKELT		DUPLEX		ANSI 40
z	de	dp	D1	Kg	D2	Kg	08A-1-2
8	39.3	33.18	8	0.04	10	0.07	Sprocket	mm
9	43.2	37.13	8	0.04	10	0.1	Tandradie r3	13.5
10	47.2	41.10	8	0.06	10	0.13	Radiebredd C	1.6
11	51.2	45.07	8	0.07	12	0.17	Tandbredd B1	7.2
12	55.2	49.07	8	0.08	12	0.21	Tandbredd b1	7
13	59.2	53.06	10	0.1	12	0.25	Tandbredd B2	21.1
14	63.2	57.07	10	0.12	12	0.3	Kedja	mm
15	67.2	61.09	10	0.14	12	0.36	Tonhöjd	12.7
16	71.2	65.10	10	0.16	16	0.41	Invändig bredd	7.95
17	75.2	69.11	10	0.18	16	0.47	Roller Φ	7.95
18	79.2	73.14	10	0.20	16	0.54
19	83.3	77.16	10	0.23	16	0.61
20	87.3	81.19	10	0.27	16	0.68
21	91.3	85.22	12	0.28	16	0.75
22	95.4	89.24	12	0.31	16	0.83
23	99.4	93.27	12	0.35	16	0.92
24	103.4	97.29	12	0.38	16	1.01
25	107.4	101.36	12	0.41	16	1.1
26	111.5	105.36	16	0.43	16	1.2
27	115.5	109.4	16	0.46	16	1.31
28	119.5	113.42	16	0.48	16	1.42
29	123.6	117.46	16	0.53	16	1.53
30	127.6	121.50	16	0.58	16	1.65
31	131.6	125.54	16	0.63	20	1.77
32	135.7	129.56	16	0.68	20	1.9
33	139.7	133.6	16	0.73	20	2.02
34	143.8	137.64	16	0.78	20	2.16
35	147.8	141.68	16	0.83	20	2.3
36	151.8	145.72	16	0.88	20	2.42
37	155.9	149.76	16	0.93	20	2.56
38	159.9	153.80	16	0.98	20	2.71
39	163.9	157.83	16	1.03	20	2.87
40	168.0	161.87	16	1.09	20	3.03
41	172.5	165.91	20	1.14	20	3.2
42	176.6	169.95	20	1.19	20	3.36
43	180.6	173.99	20	1.25	20	3.53
44	184.6	178.03	20	1.32	20	3.71
45	188.7	182.07	20	1.38	20	3.89
46	192.7	186.10	20	1.44	20	4.07
47	196.8	190.14	20	1.51	20	4.52
48	200.8	194.18	20	1.58	20	4.66
49	204.8	198.22	20	1.65	20	4.78
50	208.9	202.26	20	1.73	20	4.88
51	212.9	206.3	20	1.8	20	5.03
52	217.0	210.34	20	1.87	20	5.24
53	221	214.37	20	1.94	20	5.46
54	225.0	218.43	20	2.02	20	5.68
55	229.1	222.46	20	2.1	20	5.9
56	233.1	226.50	20	2.17	20	6.13
57	237.2	230.54	20	2.25	20	6.36
58	241.2	234.62	20	2.36	20	6.59
59	245.2	238.62	20	2.42	20	6.83
60	249.3	242.66	20	2.50	20	7.08
62	257.4	250.74	25	2.67	25	7.6
64	265.4	258.82	25	2.85	25	8.1
65	269.5	262.86	25	2.94	25	8.36
66	273.5	266.90	25	3.03	25	8.63
68	281.6	274.99	25	3.22	25	9.2
70	289.7	283.07	25	3.42	25	9.75
72	297.8	291.16	25	3.62	25	10.33
75	309.9	303.27	25	3.94	25	11.24
76	313.9	307.33	25	4.05	25	11.55
78	322.0	315.40	25	4.27	25	12.25
80	330.1	323.48	25	4.50	25	12.9
85	350.3	343.69	25	5.62	25	14.55
90	370.5	363.90	25	6.31	25	16.36
95	390.7	384.11	25	7.05	25	18.28
100	410.9	404.31	25	7.82	25	20.3
110	451.4	444.74	25	9.50	25	24.67
114	467.5	460.90	25	10.21	25	26.57
120	491.8	485.16	25	11.32	25	29.46
125	512.0	505.37	25	12.31	25	32

2. ANSI Plate Wheel Sprocket 50(10A-1-2)

z	de	dp	ENKELT		DUPLEX		ANSI 50
z	de	dp	D1	Kg	D2	Kg	10A-1-2
8	48.4	41.48	10	0.06	10	0.15	Sprocket	mm
9	53.3	46.42	10	0.09	10	0.21	Tandradie r3	17
10	58.3	51.37	10	0.11	12	0.27	Radiebredd C	2
11	63.2	56.34	12	0.14	12	0.34	Tandbredd B1	8.7
12	68.2	61.34	12	0.17	16	0.42	Tandbredd b1	8.4
13	73.2	66.32	12	0.20	16	0.51	Tandbredd B2	26.5
14	78.2	71.34	12	0.23	16	0.60	Kedja	mm
15	83.2	76.36	12	0.27	16	0.70	Tonhöjd	15.875
16	88.3	81.37	12	0.31	16	0.82	Invändig bredd	9.53
17	93.3	86.39	12	0.36	16	0.94	Roller Φ	10.16
18	98.3	91.42	14	0.41	16	1.06
19	103.3	96.45	14	0.46	16	1.20
20	108.4	101.49	14	0.51	16	1.34
21	113.4	106.52	16	0.57	16	1.48
22	118.4	111.55	16	0.62	20	1.64
23	123.5	116.58	16	0.68	20	1.80
24	128.5	121.62	16	0.75	20	1.98
25	133.6	126.66	16	0.82	20	2.17
26	138.6	131.70	20	0.88	20	2.33
27	143.6	136.75	20	0.95	20	2.53
28	148.7	141.78	20	1.03	20	2.74
29	153.7	146.83	20	1.11	20	2.96
30	158.8	151.87	20	1.19	20	3.18
31	163.8	156.92	20	1.28	20	3.41
32	168.9	161.95	20	1.36	20	3.66
33	173.9	167.00	20	1.45	20	3.90
34	178.9	172.05	20	1.55	20	4.16
35	184.0	177.10	20	1.64	20	4.42
36	189.0	182.15	20	1.73	20	4.70
37	194.1	187.20	20	1.83	20	4.98
38	199.1	192.24	20	1.94	20	5.26
39	204.2	197.29	20	2.05	20	5.56
40	209.2	202.34	20	2.16	20	5.87
41	215.8	207.39	20	2.28	20	6.17
42	220.8	212.44	20	2.39	20	6.46
43	225.9	217.49	20	2.50	20	6.80
44	230.9	222.53	20	2.63	20	7.13
45	236.0	227.58	20	2.75	20	7.47
46	241.0	232.63	20	2.88	20	7.83
47	246.1	237.68	20	3.00	20	8.19
48	251.1	242.73	20	3.14	20	8.55
49	256.2	247.78	20	3.28	20	8.91
50	261.2	252.82	20	3.42	20	6.32
51	266.3	257.87	20	3.56	20	9.72
52	271.3	262.92	20	3.70	20	10.11
53	276.4	267.97	20	3.85	20	10.52
54	281.4	273.03	20	4.00	20	10.94
55	286.5	278.08	20	4.15	20	11.36
56	291.5	283.13	25	4.30	20	11.80
57	296.6	288.18	25	4.46	25	12.24
58	301.6	293.23	25	4.62	25	12.68
59	306.7	298.27	25	4.78	25	13.15
60	311.7	303.32	25	4.95	25	13.61
62	321.8	313.43	25	5.30	25	14.56
64	331.9	323.53	25	5.65	25	15.51
65	337.0	328.58	25	5.83	25	16.05
68	352.1	343.74	25	6.40	25	17.59
70	362.2	353.84	25	6.79	25	18.70
72	372.3	363.95	25	7.19	25	19.81
75	387.5	379.09	25	7.81	25	21.54
76	392.5	374.16	25	8.02	25	22.14
78	402.6	394.25	25	8.46	25	23.37
80	412.7	404.35	25	8.91	25	24.60
85	438.0	429.62	30	10.06	25	28.00
90	463.3	254.88	30	11.30	25	31.25
95	488.5	480.14	30	12.61	25	34.90
100	513.8	505.40	30	13.99	25	38.75
110	564.3	555.92	30	16.97	25	46.73
114	584.5	576.13	30	19.98	25	50.60
120	614.8	606.44	30	22.17	25	56.16
125	640.1	631.71	30	24.08	25	61.00

3. ANSI Plate Wheel Kedjehjul 60(12A-1-2)

z	de	dp	ENKELT		DUPLEX		ANSI 60
z	de	dp	D1	Kg	D2	Kg	12A-1-2
8	58.1	49.78	10				Sprocket	mm
9	64.0	55.70	10				Tandradie r3	20
10	70.0	61.64	10		12		Radiebredd C	2.4
11	76.0	67.61	12		16		Tandbredd B1	11.7
12	81.9	76.60	12		16		Tandbredd b1	11.3
13	87.9	79.59	14	0.35	16		Tandbredd B2	34.1
14	94.0	85.61	14	0.41	16		Kedja	mm
15	100.0	91.63	14	0.48	16		Tonhöjd	19.05
16	106.0	97.65	14	0.55	20		Invändig bredd	12.7
17	112.0	103.67	14	0.63	20		Roller Φ	11.91
18	118.0	109.71	14	0.71	20
19	124.1	115.75	14	0.83	20
20	130.1	121.78	14	0.92	20
21	136.2	127.82	16	0.99	20
22	142.2	133.86	16	1.09	20
23	148.2	139.90	16	1.20	20
24	154.3	145.94	16	1.31	20
25	160.3	152.00	16	1.43	20
26	166.4	158.04	16	1.56	20
27	172.4	164.09	16	1.68	20
28	178.5	170.13	16	1.82	20
29	184.5	176.19	16	1.96	20
30	190.6	182.25	16	2.10	20
31	196.6	188.31	20	2.24	20
32	202.7	194.35	20	2.39	20
33	208.8	200.40	20	2.55	20
34	214.8	206.46	20	2.71	20
35	220.9	212.52	20	2.88	20
36	226.9	218.58	20	3.06	25
37	233.0	224.64	20	3.25	25
38	239.0	230.69	20	3.42	25
39	245.1	236.75	20	3.63	25
40	251.1	242.81	20	3.85	25
41	259.1	248.87	25	4.01	25
42	265.2	254.93	25	4.19	25
43	271.3	260.98	25		25
44	277.3	267.03	25		25
45	283.3	273.10	25		25
46	289.4	279.16	25		25
47	295.5	285.21	25		25
48	301.5	291.27	25		25
49	307.6	297.33	25		25
50	313.6	303.39	25		25
51	319.7	309.45	25		25
52	325.8	315.50	25		25
53	331.8	321.56	25		25
54	337.9	327.64	25		25
55	343.9	333.70	25		25
56	350.0	339.75	25		25
57	356.1	345.81	25		25
58	362.1	351.87	25		25
59	368.2	357.93	25		25
60	374.2	363.99	25		25
62	386.4	376.12	25		30
64	398.5	388.24	25		30
65	404.5	394.29	25		30
66	410.6	400.35	25		30
68	422.7	412.49	25		30
70	434.9	424.60	25		30
72	447.0	436.74	25		30
75	465.2	454.91	25		30
76	471.2	460.99	25		30
78	483.3	473.10	25		30
80	495.5	485.22	25		30
85	525.8	515.55	25		30
90	556.1	545.86	25		30
95	586.4	576.17	25		30
100	616.7	606.47	25		30
110	677.4	667.11	25		30
114	701.6	691.36	25		30
120	738.0	727.74	25		30
125	768.3	758.05	25		30

4. ANSI Plate Wheel Kedjehjul 80(16A-1-2)

z	de	dp	ENKELT		DUPLEX		ANSI 80
z	de	dp	D1	Kg	D2	Kg	16A-1-2
8	77.9	66.37	16		20		Sprocket	mm
9	85.8	74.27	16		20		Tandradie r3	27
10	93.8	82.19	16		20		Radiebredd C	3.2
11	101.7	90.14	16		20		Tandbredd B1	14.7
12	109.7	98.14	16	0.77	20		Tandbredd b1	14.1
13	117.7	106.12	16	0.91	20		Tandbredd B2	43.4
14	125.7	114.15	16	1.01	20		Kedja	mm
15	133.7	122.17	16	1.22	20		Tonhöjd	25.4
16	141.8	130.20	20	1.43	25		Invändig bredd	15.88
17	149.8	138.22	20	1.64	25		Roller Φ	15.88
18	157.8	146.28	20	1.85	25
19	165.9	154.33	20	2.08	25
20	173.9	162.38	20	2.12	25
21	182.0	170.43	20	2.45	25
22	190.1	178.48	20	2.84	25
23	198.1	186.53	20	3.13	25
24	206.2	194.59	20	3.42	25
25	214.2	202.66	20	3.73	25
26	222.3	210.72	20	4.05	25
27	230.4	218.79	20	4.38	25
28	238.4	226.85	20	4.73	25
29	246.5	234.92	20	5.09	25
30	254.6	243.00	20	5.46	25
31	262.6	251.08	25	5.83	25
32	270.7	259.13	25	6.21	25
33	278.8	267.21	25	6.63	25
34	286.9	275.28	25	7.06	25
35	294.9	283.36	25	7.49	25
36	303.0	291.44	25	8.01	25
37	311.1	299.51	25	8.45	25
38	319.2	307.59	25	8.88	25
39	327.2	315.67	25		25
40	335.3	323.73	25		25
41	345.6	331.82	25		25
42	353.7	339.90	25		25
43	361.7	347.98	25		25
44	369.8	356.06	25		25
45	377.9	364.12	25		25
46	386.0	372.21	25		25
47	394.1	380.29	25		25
48	402.1	388.36	25		25
49	410.2	396.44	25		25
50	418.3	404.52	25		25
51	426.5	412.60	25		30
52	434.5	420.67	25		30
53	442.5	428.75	25		30
54	450.6	436.85	25		30
55	458.7	444.93	25		30
56	466.8	453.01	25		30
57	474.9	461.07	25		30
58	482.9	469.16	25		30
59	491.0	477.24	25		30
60	499.1	485.32	25		30
62	515.3	501.50	30		30
64	531.4	517.65	30		30
65	539.5	525.73	30		30
66	547.6	533.80	30		30
68	563.8	549.98	30		30
70	579.9	566.14	30		30
72	596.1	582.32	30		30
75	620.3	606.35	30		30
76	628.4	614.65	30		30
78	644.6	630.80	30		30
80	660.7	646.96	30		30
85	701.2	687.04	30		30
90	741.6	727.81	30		30
95	782.0	768.22	30		30
100	822.4	808.63	30		30
110	903.3	889.48	30		30
114	935.6	921.81	30		40
120	984.1	970.33	30		40
125	1024.5	1010.73	30		40