Bellow couplings / hub clamping, feather key / bellows: stainless steel / body: stainless steel / KB4VA / KBK

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· Backlash-free metal bellows coupling completely in stainless steel
· Also available as laser-welded execution for high-temperature or vacuum applications
· For shaft diameters from 10 - 70mm
· High torsional stiffness, compensation of shaft misalignment at low restoring forces
· Torque range: 18 - 500Nm

Part Number

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the corresponding part number is displayed here.

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Data to be displayed: 30; 45; 60

Part Number
KB4VA/18-63-[10-25.4/0.1]-[10-25.4/0.1]
KB4VA/18-63-[10-25.4/0.1]-N[10-25.4/0.1]
KB4VA/18-63-N[10-25.4/0.1]-[10-25.4/0.1]
KB4VA/18-63-N[10-25.4/0.1]-N[10-25.4/0.1]
KB4VA/18-71-[10-25.4/0.1]-[10-25.4/0.1]
KB4VA/18-71-[10-25.4/0.1]-N[10-25.4/0.1]
KB4VA/18-71-N[10-25.4/0.1]-[10-25.4/0.1]
KB4VA/18-71-N[10-25.4/0.1]-N[10-25.4/0.1]
KB4VA/30-65-[10-32/1]-[10-32/1]
KB4VA/30-65-[10-32/1]-N[10-32/1]
KB4VA/30-65-N[10-32/1]-[10-32/1]
KB4VA/30-65-N[10-32/1]-N[10-32/1]
KB4VA/30-73-[10-32/1]-[10-32/1]
KB4VA/30-73-[10-32/1]-N[10-32/1]
KB4VA/30-73-N[10-32/1]-[10-32/1]
KB4VA/30-73-N[10-32/1]-N[10-32/1]
KB4VA/60-79-[12-35/1]-[12-35/1]
KB4VA/60-79-[12-35/1]-N[12-35/1]
KB4VA/60-79-N[12-35/1]-[12-35/1]
KB4VA/60-79-N[12-35/1]-N[12-35/1]
KB4VA/60-89-[12-35/1]-[12-35/1]
KB4VA/60-89-[12-35/1]-N[12-35/1]
KB4VA/60-89-N[12-35/1]-[12-35/1]
KB4VA/60-89-N[12-35/1]-N[12-35/1]
KB4VA/80-91-[14-44/1]-[14-44/1]
KB4VA/80-91-[14-44/1]-N[14-44/1]
KB4VA/80-91-N[14-44/1]-[14-44/1]
KB4VA/80-91-N[14-44/1]-N[14-44/1]
KB4VA/80-102-[14-44/1]-[14-44/1]
KB4VA/80-102-[14-44/1]-N[14-44/1]
KB4VA/80-102-N[14-44/1]-[14-44/1]
KB4VA/80-102-N[14-44/1]-N[14-44/1]
KB4VA/150-91-[19-44/1]-[19-44/1]
KB4VA/150-91-[19-44/1]-N[19-44/1]
KB4VA/150-91-N[19-44/1]-[19-44/1]
KB4VA/150-91-N[19-44/1]-N[19-44/1]
KB4VA/150-102-[19-44/1]-[19-44/1]
KB4VA/150-102-[19-44/1]-N[19-44/1]
KB4VA/150-102-N[19-44/1]-[19-44/1]
KB4VA/150-102-N[19-44/1]-N[19-44/1]
KB4VA/200-101-[22-47/1]-[22-47/1]
KB4VA/200-101-[22-47/1]-N[22-47/1]
KB4VA/200-101-N[22-47/1]-[22-47/1]
KB4VA/200-101-N[22-47/1]-N[22-47/1]
KB4VA/200-113-[22-47/1]-[22-47/1]
KB4VA/200-113-[22-47/1]-N[22-47/1]
KB4VA/200-113-N[22-47/1]-[22-47/1]
KB4VA/200-113-N[22-47/1]-N[22-47/1]
KB4VA/300-105-[30-60/1]-[30-60/1]
KB4VA/300-105-[30-60/1]-N[30-60/1]
KB4VA/300-105-N[30-60/1]-[30-60/1]
KB4VA/300-105-N[30-60/1]-N[30-60/1]
KB4VA/300-116-[30-60/1]-[30-60/1]
KB4VA/300-116-[30-60/1]-N[30-60/1]
KB4VA/300-116-N[30-60/1]-[30-60/1]
KB4VA/300-116-N[30-60/1]-N[30-60/1]
KB4VA/500-112-[35-70/1]-[35-70/1]
KB4VA/500-112-[35-70/1]-N[35-70/1]
KB4VA/500-112-N[35-70/1]-[35-70/1]
KB4VA/500-112-N[35-70/1]-N[35-70/1]

Related to	Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	Shaft Bore Dia. (machined) D1 (mm)	Shaft Bore Dia. (machined) D2 (mm)	Outer Dia. A (mm)	Length L (mm)	Size	Applicable Range (Bore 1)	Applicable Range (Bore 2)	Maximum D1 Bore Size with Keyway	Maximum D2 Bore Size with Keyway	Keyway D1	Keyway D2
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	63	18	10-25.4	10-25.4	25.4	25.4	No	No
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	63	18	10-25.4	10-25.4	25.4	25.4	No	Yes
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	63	18	10-25.4	10-25.4	25.4	25.4	Yes	No
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	63	18	10-25.4	10-25.4	25.4	25.4	Yes	Yes
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	71	18	10-25.4	10-25.4	25.4	25.4	No	No
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	71	18	10-25.4	10-25.4	25.4	25.4	No	Yes
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	71	18	10-25.4	10-25.4	25.4	25.4	Yes	No
Data sheet	-	1	17 Days	10 ～ 25.4	10 ～ 25.4	45	71	18	10-25.4	10-25.4	25.4	25.4	Yes	Yes
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	65	30	10-32	10-32	30	30	No	No
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	65	30	10-32	10-32	30	30	No	Yes
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	65	30	10-32	10-32	30	30	Yes	No
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	65	30	10-32	10-32	30	30	Yes	Yes
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	73	30	10-32	10-32	30	30	No	No
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	73	30	10-32	10-32	30	30	No	Yes
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	73	30	10-32	10-32	30	30	Yes	No
Data sheet	-	1	17 Days	10 ～ 32	10 ～ 32	56	73	30	10-32	10-32	30	30	Yes	Yes
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	79	60	12-35	12-35	35	35	No	No
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	79	60	12-35	12-35	35	35	No	Yes
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	79	60	12-35	12-35	35	35	Yes	No
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	79	60	12-35	12-35	35	35	Yes	Yes
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	89	60	12-35	12-35	35	35	No	No
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	89	60	12-35	12-35	35	35	No	Yes
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	89	60	12-35	12-35	35	35	Yes	No
Data sheet	-	1	17 Days	12 ～ 35	12 ～ 35	66	89	60	12-35	12-35	35	35	Yes	Yes
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	91	80	14-44	14-44	44	44	No	No
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	91	80	14-44	14-44	44	44	No	Yes
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	91	80	14-44	14-44	44	44	Yes	No
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	91	80	14-44	14-44	44	44	Yes	Yes
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	102	80	14-44	14-44	44	44	No	No
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	102	80	14-44	14-44	44	44	No	Yes
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	102	80	14-44	14-44	44	44	Yes	No
Data sheet	-	1	17 Days	14 ～ 44	14 ～ 44	82	102	80	14-44	14-44	44	44	Yes	Yes
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	91	150	19-44	19-44	44	44	No	No
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	91	150	19-44	19-44	44	44	No	Yes
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	91	150	19-44	19-44	44	44	Yes	No
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	91	150	19-44	19-44	44	44	Yes	Yes
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	102	150	19-44	19-44	44	44	No	No
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	102	150	19-44	19-44	44	44	No	Yes
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	102	150	19-44	19-44	44	44	Yes	No
Data sheet	-	1	17 Days	19 ～ 44	19 ～ 44	82	102	150	19-44	19-44	44	44	Yes	Yes
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	101	200	22-47	22-47	47	47	No	No
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	101	200	22-47	22-47	47	47	No	Yes
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	101	200	22-47	22-47	47	47	Yes	No
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	101	200	22-47	22-47	47	47	Yes	Yes
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	113	200	22-47	22-47	47	47	No	No
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	113	200	22-47	22-47	47	47	No	Yes
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	113	200	22-47	22-47	47	47	Yes	No
Data sheet	-	1	17 Days	22 ～ 47	22 ～ 47	90	113	200	22-47	22-47	47	47	Yes	Yes
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	105	300	30-60	30-60	60	60	No	No
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	105	300	30-60	30-60	60	60	No	Yes
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	105	300	30-60	30-60	60	60	Yes	No
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	105	300	30-60	30-60	60	60	Yes	Yes
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	116	300	30-60	30-60	60	60	No	No
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	116	300	30-60	30-60	60	60	No	Yes
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	116	300	30-60	30-60	60	60	Yes	No
Data sheet	-	1	17 Days	30 ～ 60	30 ～ 60	110	116	300	30-60	30-60	60	60	Yes	Yes
Data sheet	-	1	17 Days	35 ～ 70	35 ～ 70	122	112	500	35-70	35-70	70	70	No	No
Data sheet	-	1	17 Days	35 ～ 70	35 ～ 70	122	112	500	35-70	35-70	70	70	No	Yes
Data sheet	-	1	17 Days	35 ～ 70	35 ～ 70	122	112	500	35-70	35-70	70	70	Yes	No
Data sheet	-	1	17 Days	35 ～ 70	35 ～ 70	122	112	500	35-70	35-70	70	70	Yes	Yes

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Basic Attributes

Shaft Bore Dia. (machined) D1(mm)
[10-25.4/0.1mm Unit(s)][10-70/1mm Unit(s)]
Clear
Shaft Bore Dia. (machined) D2(mm)
[10-25.4/0.1mm Unit(s)][10-70/1mm Unit(s)]
Clear
Outer Dia. A(mm)
45

56

66

82

90

110

122
Clear
Length L(mm)
63

65

71

73

79

89

91

101

102

105

112

113

116

123
Clear
Size
18

30

60

80

150

200

300

500
Clear
Applicable Range (Bore 1)
10-32

10-25.4

12-35

14-44

19-44

22-47

30-60

35-70
Clear
Applicable Range (Bore 2)
10-32

10-25.4

12-35

14-44

19-44

22-47

30-60

35-70
Clear
Maximum D1 Bore Size with Keyway
25.4

30

35

44

47

60

70
Clear
Maximum D2 Bore Size with Keyway
25.4

30

35

44

47

60

70
Clear
Keyway D1
- No
- Yes
Clear
Keyway D2
- No
- Yes
Clear
Type
Clear
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