FBN Standard Sprockets

FBN Standard Sprockets (Japanese Standard)

FBN 15B

Chain Type	No.15
Pitch	(P)	4.7625 mm
Internal Width	(W)	2.38 mm
Roller Dia.	(Dr)	2.48 mm
Teeth width	(T)	2.0 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore dia. H7	Weight (g)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore dia. H7	Weight (g)
39.0	36.49	30	16	7	FBN 15B	24	10,12,15	88
42.0	39.51	33	16	7		26	12,15,16	104
45.0	42.54	37	16	7		28	12,15,16	131
48.0	45.56	39	16	7		30	12,15,16	147
52.5	50.10	40	18	8		33	12,15,16	178
55.5	53.13	40	18	8		35	12,15,16	182

Bore dia^H7	Keyway bXt²	Setscrew³ M
5~7	\|	3
8~9	\|	4
10	3X1.4	4
12	4X1.8	5
14~17	5X2.3	6
18~22	6X2.8	6

FBN 25B

Chain Type	No.25
Pitch	(P)	6.35 mmi1/4 inchj
Internal Width	(W)	3.18 mm
Roller Dia.	(Dr)	3.30 mm
Teeth width	(T)	2.8 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore dia. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore dia. H7	Weight (kg)
36	32.55	25	15	6	FBN 25B	16	10,12	0.06
38	34.56	25	15	6		17	10,12	0.07
40	36.57	25	15	6		18	10,12	0.07
42	38.58	28	15	6		19	10,12	0.08
44	40.59	28	15	6		20	10,12	0.08
46	42.61	28	15	6		21	10,12	0.09
48	44.62	30	15	6		22	12,15	0.10
50	46.63	30	15	6		23	12,15	0.11
52	48.65	30	15	6		24	12,15	0.12
54	50.66	35	15	6		25	12,15,16	0.14
56	52.68	35	15	6		26	12,15,16	0.14
58	54.70	35	15	6		27	12,15,16	0.15
60	56.71	35	15	6		28	12,15,16	0.15
64	60.75	35	15	6		30	12,15,16	0.16
68	64.78	40	20	8		32	15,16,18,20	0.20
72	68.82	40	20	8		34	15,16,18,20	0.21
74	70.84	40	20	8		35	15,16,18,20	0.21
76	72.86	40	20	8		36	15,16,18,20	0.22
80	76.90	40	20	8		38	15,16,18,20	0.26
84	80.93	40	20	8		40	15,16,18,20	0.27

Bore dia.^H7	Keyway bXt²	Setscrew³ M
10	3X1.4	4
12	4X1.8	5
14~17	5X2.3	6
18~20	6X2.8	6

FBN 35B

Chain Type	No.35
Pitch	(P)	9.525 mm (3/8 inch)
Internal Width	(W)	4.78 mm
Roller Dia.	(Dr)	5.08 mm
Teeth width	(T)	4.3 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore dia. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore dia. H7	Weight (kg)
32	27.85	*21.5	20	6	FBN 35B	9	10	0.06
34	30.82	*24.5	20	6		10	10,12	0.08
38	33.81	*27	20	6		11	10,12,14	0.09
41	36.80	*30.5	20	6		12	10,12,14,15,16,17	0.12
44	39.80	*32	20	6		13	10,12,14,15,16,17,18	0.12
47	42.81	32	20	6		14	10,12,14,15,16,17, 18, 19, 20	0.12
51	45.81	35	20	6		15	10,12,14,15,16,17,18,19,20	0.16
54	48.82	37	20	6		16	10,12,14,15,16,17,18,19,20,22, 24, 25	0.19
57	51.84	41	20	6		17	12,14,15,16,17,18,19,20,22,24,25	0.22
60	54.85	44	20	6		18	12,14,15,16,17,18,19,20,22,24,25	0.25
63	57.87	47	20	6		19	12,14,15,16,17,18,19,20,22,24,25, 28	0.28
66	60.89	50	20	6		20	12,14,15,16,17,18,19,20,22,24,25, 28,30	0.32
69	63.91	53	20	6		21	12,14,15,16,17,18,19,20,22,24,25, 28,30,32	0.36
72	66.93	56	20	6		22	12,14,15,16,17,18,19,20,22,24,25, 28,30,32	0.37
75	69.95	60	20	6		23	12,14,15,16,17,18,19,20,22,24,25, 28,30,32	0.38
78	72.97	53	22	8		24	12,14,15,16,17,18,19,20,22,24,25, 28,30,32	0.43
81	76.00	53	22	8		25	15,16,17,18,19,20,22,24,25,28,30, 32	0.44
84	79.02	53	22	8		26	15,16,17,18,19,20,22,24,25,28,30, 32	0.45
87	82.05	53	22	8		27	15,16,17,18,19,20,22,24,25,28,30, 32	0.46
90	85.07	53	22	8		28	15,16,17,18,19,20,22,24,25,28,30, 32	0.48
96	91.12	53	22	8		30	15,16,17,18,19,20,22,24,25,28,30, 32	0.51
102	97.18	53	22	8		32	15,16,17,18,19,20,22,24,25,28,30, 32	0.54
109	103.23	53	22	8		34	15,16,17,18,19,20,22,24,25,28,30, 32	0.57
112	106.26	53	22	8		35	15,16,17,18,19,20,22,24,25,28,30, 32	0.59
115	109.29	53	22	8		36	15,16,17,18,19,20,22,24,25,28,30, 32	0.61
121	115.34	63	25	10		38	20,22,24,25,28,30,32,35,38	0.82
127	121.40	63	25	10		40	20,22,24,25,28,30,32,35,38	0.85

Finished Bore

Bore dia^H7	Keyway bXt²	Setscrew³ M
10	3X1.4	4
12	4X1.8	5
14~17	5X2.3	6
18~20	6X2.8	6
24~30	8X3.3	8
32~38	10X3.3	8

Teeth No.	Bore dia.^H7	Setscrew³ M
17	25	6

Teeth No.	S	GD
9	4.4	17
10		20
11		23
12		26
13		29

FBN 40B

Chain Type	No.40
Pitch	(P)	12.7 mm (1/2inch)
Internal width	(W)	7.95 mm
Roller Dia.	(Dr)	7.95 mm
Teeth width	(T)	7.2 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore dia.. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore dia.. H7	Weight (kg)
42	37.13	*28	22	5	FBN 40B	9	10,12,14,15	0.11
46	41.10	*32	22	5		10	10,12,14,15,16,17,18	0.14
51	45.08	*36	22	5		11	10,12,14,15,16,17,18,19,20	0.19
55	49.07	*40	22	5		12	10,12,14,15,16,17,18,19,20,22	0.22
59	53.07	37	22	6		13	12,14,15,16,17,18,19,20,22, 24, 25	0.23
63	57.07	42	22	6		14	12,14,15,16,17,18,19,20,22,24,25,28	0.28
67	61.08	46	22	6		15	12,14,15,16,17,18,19,20,22,24,25,28,30	0.34
71	65.10	50	22	6		16	14,15,16,17,18,19,20,22,24,25,28,30,32	0.40
76	69.12	54	22	6		17	14,15,16,17,18,19,20,22,24,25,28,30,32,35	0.46
80	73.14	57	22	6		18	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 40	0.51
84	77.16	62	22	6		19	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40	0.59
88	81.18	67	25	7		20	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42, 45	0.76
92	85.21	71	25	7		21	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42,45	0.85
96	89.24	75	25	7		22	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42,45	0.95
100	93.27	77	25	7		23	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42,45	1.00
104	97.30	63	25	7		24	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42	0.84
108	101.33	63	25	7		25	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42	0.88
112	105.36	63	25	7		26	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42	0.92
116	109.40	63	25	7		27	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42	0.96
120	113.43	63	25	7		28	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42	1.00
124	117.46	63	25	7		29	25	1.00
128	121.50	63	25	7		30	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42	1.10
137	129.57	68	28	10		32	20,22,24,25,28,30,32,35,40	1.30
145	137.64	68	28	10		34	20,22,24,25,28,30,32,35,40	1.30
149	141.68	68	28	10		35	20,22,24,25,28,30,32,35,40	1.40
153	145.72	68	28	10		36	20,22,24,25,28,30,32,35,40	1.50
157	149.75	68	28	10		37	35	1.55
161	153.79	68	28	10		38	24,25,28,30,32,35,40	1.60
169	161.87	68	28	10		40	25,28,30,32,35,40	1.70

Bore dia.^H7	Keyway bXt²	Setscrew³ M
10	3X1.4	4
12	4X1.8	5
14~17	5X2.3	6
18~20	6X2.8	6
24~30	8X3.3	8
32~35	10X3.3	8
40~42	12X3.3	8
45	14X3.8	10

Teeth No.	Bore dia.^H7	Setscrew³ M
14	25	6
15	30	6

Teeth No.	S	GD
9	5.2	23
10		27
11		31
12		35

FBN 50B

Chain Type	No.50
Pitch	(P)	15.875 mm (5/8inch)
Internal width	(W)	9.53 mm
Roller Dia.	(Dr)	10.16 mm
Teeth width	(T)	8.7 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprocket No.		Bore Dia. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore Dia. H7	Weight (kg)
53	46.41	*34	25	5	FBN 50B	9	16,17,18,19	0.20
58	51.37	*40	25	5		10	15,16,17,18,19,20,22, 24, 25	0.27
64	56.35	*45.5	25	5		11	15,16,17,18,19,20,22,24,25	0.33
69	61.34	*50	25	5		12	15,16,17,18,19,20,22,24,25,28,30,32	0.41
74	66.34	*51	25	5		13	14,15,16,17,18,19,20,22,24,25,28,30,32	0.46
79	71.34	52	25	7		14	14,15,16,17,18,19,20,22,24,25,28,30,32,35	0.52
84	76.35	57	25	7		15	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38	0.62
89	81.37	62	25	7		16	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40	0.72
94	86.39	67	25	7		17	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42, 45	0.83
100	91.42	72	28	8		18	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42,45	1.00
105	96.45	73	28	8		19	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42,45	1.10
110	101.48	73	28	8		20	14,15,16,17,18,19,20,22,24,25,28,30,32,35, 38,40,42,45,50	1.20
115	106.51	73	28	8		21	17,18,19,20,22,24,25,28,30,32,35,38,40,42, 45	1.20
120	111.55	73	28	8		22	17,18,19,20,22,24,25,28,30,32,35,38,40,42, 45	1.30
125	116.58	73	28	8		23	17,18,19,20,22,24,25,28,30,32,35,38,40,42, 45	1.30
130	121.62	73	28	8		24	17,18,19,20,22,24,25,28,30,32,35,38,40,42, 45	1.40
135	126.66	73	28	8		25	17,18,19,20,22,24,25,28,30,32,35,38,40,42, 45	1.50
140	131.70	73	28	8		26	24,25,28,30,32,35,38,40,45	1.50
145	136.74	73	28	8		27	24,25,28,30,32,35,38,40,45	1.50
150	141.79	73	28	8		28	24,25,28,30,32,35,38,40,42,45	1.60
155	146.83	73	28	8		29	24,30	1.70
161	151.87	73	28	8		30	22,25,28,30,32,35,38,40,45	1.80
171	161.96	73	28	8		32	25,28,30,32,35,38,40,45	1.90
176	167.01	73	28	8		33	35	2.00
181	172.05	73	28	8		34	25,28,30,32,35,38,40,45	2.10
186	177.10	73	28	8		35	25,28,30,32,35,38,40,45	2.20

Bore dia.^H7	Keyway bXt²	Setscrew³ M
14~17	5X2.3	6
18~22	6X2.8	6
24~30	8X3.3	8
32~38	10X3.3	8
40~42	12X3.3	8
45~50	14X3.8	10

Teeth No.	Bore dia.^H7	Setscrew³ M
10	24 25	6
11	24 25	6
12	25 25 28 30 32	6
13	25 25 28 30 32	6
14	35	6

Teeth No.	S	GD
9	6.4	29
10		34
11		39
12		44
13		49

FBN 60B

Chain Type	No.60
Pitch	(P)	19.05 mm (3/4 inch)
Internal width	(W)	12.70 mm
Roller Dia.	(Dr)	11.91 mm
Teeth width	(T)	11.7 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore Dia. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore Dia. H7	Weight (kg)
63	55.70	*43	32	6	FBN 60B	9	19,20,22,24	0.40
68	61.65	*49	32	6		10	19,20,22,24,25, 28, 30	0.49
76	67.62	*51	32	6		11	19,20,22,24,25,28,30,32	0.60
83	73.60	51	32	8		12	19,20,22,24,25,28,30,32,35	0.69
89	79.60	57	32	8		13	19,20,22,24,25,28,30,32,35,38,40	0.81
95	85.61	62	32	8		14	19,20,22,24,25,28,30,32,35,38,40	0.96
101	91.62	68	32	8		15	18,19,20,22,24,25,28,30,32,35,38,40,42,45	1.10
107	97.65	73	32	8		16	19,20,22,24,25,28,30,32,35,38,40,42,45,48, 50	1.30
113	103.67	73	32	8		17	19,20,22,24,25,28,30,32,35,38,40,42,45,48, 50	1.40
119	109.71	83	40	12		18	19,20,22,24,25,28,30,32,35,38,40,42,45,48, 50,55	2.00
126	115.74	83	40	12		19	19,20,22,24,25,28,30,32,35,38,40,42,45,48, 50,55	2.10
132	121.78	83	40	12		20	19,20,22,24,25,28,30,32,35,38,40,42,45,48, 50,55	2.20
138	127.82	83	40	12		21	20,22,24,25,28,30,32,35,38,40,42,45,48,50, 55	2.30
144	133.86	83	40	12		22	20,22,24,25,28,30,32,35,38,40,42,45,48,50, 55	2.50
150	139.90	83	40	12		23	20,22,24,25,28,30,32,35,38,40,42,45,48,50, 55	2.50
156	145.95	83	40	12		24	20,22,24,25,28,30,32,35,38,40,42,45,48,50, 55	2.60
162	151.99	83	40	12		25	20,22,24,25,28,30,32,35,38,40,42,45,48,50, 55	2.70
168	158.04	83	40	12		26	20,22,24,25,28,30,32,35,38,40,42,45,48,50, 55	2.90
174	164.09	83	40	12		27	22,24,25,28,30,32,35,38,40,42,45,48,50	3.00
180	170.14	83	40	12		28	22,24,25,28,30,32,35,38,40,42,45,48,50	3.10
193	182.25	83	40	12		30	22,24,25,28,30,32,35,38,40,42,45,48,50	3.40

Bore dia.^H7	Keyway bXt²	Setscrew³ M
18~22	6X2.8	6
24~30	8X3.3	8
32~38	10X3.3	8
40~42	12X3.3	8
45~50	14X3.8	10
55	16X4.3	12

Teeth No.	Bore dia.^H7	Setscrew³ M
12	35	6

Teeth No.	S	GD
9	8.0	32
10		37
11		45

FBN 80B

Chain Type	No.80
Pitch	(P)	25.4 mm (1 inch)
Internal width	(W)	15.88 mm
Roller Dia.	(Dr)	15.88 mm
Teeth width	(T)	14.6 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore dia. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore dia. H7	Weight (kg)
85	74.27	*58	40	7	FBN 80B	9	25,28,30,32,35	0.87
93	82.19	52	40	12		10	25,28,30,32	1.02
102	90.16	60	40	12		11	25,28,30,32,35,38	1.25
110	98.14	67	40	12		12	25,28,30,32,35,38,40,42,45	1.60
118	106.14	77	40	12		13	25,28,30,32,35,38,40,42,45,48,50	1.90
127	114.15	77	40	12		14	25,28,30,32,35,38,40,42,45,48,50	2.15
135	122.17	93	40	12		15	25,28,30,32,35,38,40,42,45,48,50,55,60	2.30
143	130.20	93	40	12		16	24,25,28,30,32,35,38,40,42,45,48,50,55,60	2.50
151	138.23	93	40	12		17	25,28,30,32,35,38,40,42,45,48,50,55,60	2.95
159	146.27	93	40	12		18	25,28,30,32,35,38,40,42,45,48,50,55,60	3.15
167	154.32	93	40	12		19	25,28,30,32,35,38,40,42,45,48,50,55,60	3.40
176	162.37	93	40	12		20	25,28,30,32,35,38,40,42,45,48,50,55,60	3.60
184	170.42	93	40	12		21	25,28,30,32,35,38,40,42,45,48,50,55,60	3.85

Bore dia. ^H7	Keyway bXt²	Setscrew³ M
22	6X2.8	6
24~30	8X3.3	8
32~38	10X3.3	8
40~42	12X3.3	8
45~50	14X3.8	10
55	16X4.3	12
60	18X4.4	12

Teeth No.	S	GD
9	10.4	44

FBN 100B

Chain Type	No.100
Pitch	(P)	31.75 mm (1-1/4inch)
Internal width	(W)	19.05 mm
Roller Dia.	(Dr)	19.05 mm
Teeth width	(T)	17.6 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore dia. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore dia. H7	Weight (kg)
117	102.75	65	50	16	FBN 100B	10	25,28,30,32,35,38,40,42	1.90
127	112.70	75	50	16		11	25,28,30,32,35,38,40,42,45,48,50	2.30
138	122.67	86	50	16		12	25,28,30,32,35,38,40,42,45,48,50,55	2.90
148	132.67	94	50	16		13	25,28,30,32,35,38,40,42,45,48,50,55	3.10
158	142.68	98	50	16		14	25,28,30,32,35,38,40,42,45,48,50,55,60	3.60
168	152.71	98	50	16		15	32,35,38,40,42,45,48,50,55,60	4.20
179	162.74	98	50	16		16	38,45,50,55,60	4.60
189	172.79	107	50	16		17	38,45,50,60	5.30
199	182.84	107	50	16		18	38,45,50,60	5.70
209	192.90	107	50	16		19	38,45,50,60	6.10
220	202.96	107	50	16		20	38,45,50,60	6.50
230	213.03	107	50	16		21	45,50,60	7.00

Bore dia.^H7	Keyway bXt²	Setscrew³ M
22	6X2.8	6
24~30	8X3.3	8
32~38	10X3.3	8
40~42	12X3.3	8
45~50	14X3.8	10
55	16X4.3	12
60~65	18X4.4	12

Chain Type	No.120
Pitch	(P)	38.10 mm (1-1/2inch)
Internal width	(W)	25.40 mm
Roller Dia.	(Dr)	22.23 mm
Teeth width	(T)	23.5 mm

Outside Dia. Do	Pitch Dia. Dp	Hub		a	Sprockets No.		Bore dia. H7	Weight (kg)
Outside Dia. Do	Pitch Dia. Dp	BD	BL	a	Type	Teeth No.	Bore dia. H7	Weight (kg)
177	159.20	98	56	16	FBN 120B	13	45,48,50,55,60	5.30
190	171.22	107	56	16		14	45,48,50,55,60	6.30
202	183.25	117	63	16		15	45,48,50,55,60	7.80
214	195.29	117	63	16		16	50,60	8.40
239	219.41	117	63	16		18	50,60	9.90
251	231.48	117	63	16		19	60	10.70
263	243.55	127	63	16		20	50,60	12.10
276	255.63	127	63	16		21	50,60	13.00

Bore Dia.^H7	Keyway bXt²	Setscrew³ M
28~30	8X3.3	8
32~38	10X3.3	8
40~42	12X3.3	8
45~50	14X3.8	10
55	16X4.3	15
60~65	18X4.4	12
70	20X4.9	16

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FBN Standard Sprockets

FBN Standard Sprockets (Japanese Standard)

FBN Standard Sprockets FBN 120B

FBN Standard Sprockets FBN 100B

FBN Standard Sprockets FBN 80B

FBN Standard Sprockets FBN 60B

FBN Standard Sprockets FBN 50B

FBN Standard Sprockets FBN 40B

FBN Standard Sprockets FBN 35B

FBN Standard Sprockets FBN 25B

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