Double-Strand Sprockets ZRF, Teeth Hardened, ISO 12 B-2 (Part Numbers)

Volume Discount

Material: Steel C45.
Ready-to-install, for various shaft diameters.
Teeth milled and induction hardened (approx. HRC 50), custom bore H7 - surface parameter R_a 1.6, keyway in accordance with DIN 6885/1 positioned beneath tip of tooth, 2 threads for set screws, one positioned for the keyway, one offset by 90°.

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Data to be displayed: 30; 45; 60

Part Number
12781120
12781125
12781130
12781220
12781225
12781230
12781235
12781320
12781325
12781330
12781335
12781420
12781425
12781430
12781435
12781520
12781525
12781530
12781535
12781625
12781630
12781635
12781640
12781725
12781730
12781735
12781740
12781825
12781830
12781835
12781840
12781925
12781930
12781935
12781940
12782025
12782030
12782035
12782040
12782125
12782130
12782135
12782140
12782145
12782225
12782230
12782235
12782240
12782325
12782330
12782335
12782340
12782345
12782425
12782430
12782435
12782440
12782525
12782530
12782535

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Number of Teeth (T)	Bore ^H7 (mm)	Outer diameter d_a (mm)	Pitch circle diameter d (mm)	Hub diameter ND (mm)	Total length L (mm)	Keyway width K^H9 (mm)	Depth of keyway T₂ (mm)	Thread size M	Weight (kg)
42.31 €	1	Available	4 Days	11	20	75	67.61	46	54	6	2.8	M 5	0.815
42.31 €	1	Available	4 Days	11	25	75	67.61	46	54	8	3.3	M 6	0.737
42.31 €	1	Available	4 Days	11	30	75	67.61	51	54	8	3.3	M 6	0.815
44.48 €	1	Available	4 Days	12	20	81.5	73.61	52	54	6	2.8	M 5	1.04
44.48 €	1	Available	4 Days	12	25	81.5	73.61	52	54	8	3.3	M 6	0.961
44.48 €	1	Available	4 Days	12	30	81.5	73.61	52	54	8	3.3	M 6	0.871
44.48 €	1	Available	4 Days	12	35	81.5	73.61	56	54	10	3.3	M 8	0.821
48.34 €	1	Available	4 Days	13	20	87.5	79.59	58	54	6	2.8	M 5	1.28
48.34 €	1	Available	4 Days	13	25	87.5	79.59	58	54	8	3.3	M 6	1.2
48.34 €	1	Available	4 Days	13	30	87.5	79.59	58	54	8	3.3	M 6	1.11
48.34 €	1	Available	4 Days	13	35	87.5	79.59	58	54	10	3.3	M 8	1
52.31 €	1	Available	4 Days	14	20	93.6	85.61	64	54	6	2.8	M 5	1.56
52.31 €	1	Available	4 Days	14	25	93.6	85.61	64	54	8	3.3	M 6	1.47
52.31 €	1	Available	4 Days	14	30	93.6	85.61	64	54	8	3.3	M 6	1.38
52.31 €	1	Available	4 Days	14	35	93.6	85.61	64	54	10	3.3	M 8	1.27
57.92 €	1	Available	4 Days	15	20	99.8	91.63	70	54	6	2.8	M 5	1.85
57.92 €	1	Available	4 Days	15	25	99.8	91.63	70	54	8	3.3	M 6	1.77
57.92 €	1	Available	4 Days	15	30	99.8	91.63	70	54	8	3.3	M 6	1.68
57.92 €	1	Available	4 Days	15	35	99.8	91.63	70	54	10	3.3	M 8	1.57
63.25 €	1	Available	4 Days	16	25	105.5	97.65	75	54	8	3.3	M 6	2.07
63.25 €	1	Available	4 Days	16	30	105.5	97.65	75	54	8	3.3	M 6	1.98
63.25 €	1	Available	4 Days	16	35	105.5	97.65	75	54	10	3.3	M 8	1.87
63.25 €	1	Available	4 Days	16	40	105.5	97.65	75	54	12	3.3	M 10	1.73
68.13 €	1	Available	4 Days	17	25	111.5	103.67	80	54	8	3.3	M 6	2.39
68.13 €	1	Available	4 Days	17	30	111.5	103.67	80	54	8	3.3	M 6	2.3
68.13 €	1	Available	4 Days	17	35	111.5	103.67	80	54	10	3.3	M 8	2.18
68.13 €	1	Available	4 Days	17	40	111.5	103.67	80	54	12	3.3	M 10	2.05
72.70 €	1	Available	4 Days	18	25	118	109.71	80	54	8	3.3	M 6	2.61
72.70 €	1	Available	4 Days	18	30	118	109.71	80	54	8	3.3	M 6	2.52
72.70 €	1	Available	4 Days	18	35	118	109.71	80	54	10	3.3	M 8	2.4
72.70 €	1	Available	4 Days	18	40	118	109.71	80	54	12	3.3	M 10	2.27
73.79 €	1	Available	4 Days	19	25	124.2	115.75	80	54	8	3.3	M 6	2.84
73.79 €	1	Available	4 Days	19	30	124.2	115.75	80	54	8	3.3	M 6	2.75
73.79 €	1	Available	4 Days	19	35	124.2	115.75	80	54	10	3.3	M 8	2.64
73.79 €	1	Available	4 Days	19	40	124.2	115.75	80	54	12	3.3	M 10	2.51
74.90 €	1	Available	4 Days	20	25	129.7	121.78	80	54	8	3.3	M 6	3.09
74.90 €	1	Available	4 Days	20	30	129.7	121.78	80	54	8	3.3	M 6	3
74.90 €	1	Available	4 Days	20	35	129.7	121.78	80	54	10	3.3	M 8	2.88
74.90 €	1	Available	4 Days	20	40	129.7	121.78	80	54	12	3.3	M 10	2.75
76.02 €	1	Available	4 Days	21	25	136	127.82	90	59	8	3.3	M 6	3.82
76.02 €	1	Available	4 Days	21	30	136	127.82	90	59	8	3.3	M 6	3.72
76.02 €	1	Available	4 Days	21	35	136	127.82	90	59	10	3.3	M 8	3.59
76.02 €	1	Available	4 Days	21	40	136	127.82	90	59	12	3.3	M 10	3.45
76.02 €	1	Available	4 Days	21	45	136	127.82	90	59	14	3.8	M 12	3.29
81.57 €	1	Available	4 Days	22	25	141.8	133.86	90	59	8	3.3	M 6	4.09
81.57 €	1	Available	4 Days	22	30	141.8	133.86	90	59	8	3.3	M 6	3.99
81.57 €	1	Available	4 Days	22	35	141.8	133.86	90	59	10	3.3	M 8	3.87
81.57 €	1	Available	4 Days	22	40	141.8	133.86	90	59	12	3.3	M 10	3.72
86.59 €	1	Available	4 Days	23	25	149	139.9	90	59	8	3.3	M 6	4.38
86.59 €	1	Available	4 Days	23	30	149	139.9	90	59	8	3.3	M 6	4.29
86.59 €	1	Available	4 Days	23	35	149	139.9	90	59	10	3.3	M 8	4.16
86.59 €	1	Available	4 Days	23	40	149	139.9	90	59	12	3.3	M 10	4.02
86.59 €	1	Available	4 Days	23	45	149	139.9	90	59	14	3.8	M 12	3.85
88.63 €	1	Available	4 Days	24	25	153.9	145.94	90	59	8	3.3	M 6	4.68
88.63 €	1	Available	4 Days	24	30	153.9	145.94	90	59	8	3.3	M 6	4.59
88.63 €	1	Available	4 Days	24	35	153.9	145.94	90	59	10	3.3	M 8	4.46
88.63 €	1	Available	4 Days	24	40	153.9	145.94	90	59	12	3.3	M 10	4.32
95.70 €	1	Available	4 Days	25	25	160	152	90	59	8	3.3	M 6	5
95.70 €	1	Available	4 Days	25	30	160	152	90	59	8	3.3	M 6	4.9
95.70 €	1	Available	4 Days	25	35	160	152	90	59	10	3.3	M 8	4.77

Basic information

Material	Steel (C45)	Surface Treatment	Not Provided	Number of strands	2
Hardened	Yes	Hub	One sided	DIN ISO No.	12 B-2
Version	A

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Basic Attributes

Number of Teeth(T)
11

12

13

14

15

16

17

18

19

20

21

22

23

24

25
Clear
Bore ^H7(mm)
20

25

30

35

40

45
Clear
Outer diameter d_a(mm)
75

81.5

87.5

93.6

99.8

105.5

111.5

118

124.2

129.7

136

141.8

149

153.9

160
Clear
Pitch circle diameter d(mm)
67.61

73.61

79.59

85.61

91.63

97.65

103.67

109.71

115.75

121.78

127.82

133.86

139.9

145.94

152
Clear
Hub diameter ND(mm)
46

51

52

56

58

64

70

75

80

90
Clear
Total length L(mm)
54

59
Clear
Keyway width K^H9(mm)
6

8

10

12

14
Clear
Depth of keyway T₂(mm)
2.8

3.3

3.8
Clear
Thread size M
- M 5
- M 6
- M 8
- M 10
- M 12
Clear