Bellow couplings / half-shell clamping / bellows: stainless steel / body: aluminium / KB4H / KBK

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· Backlash-free metal bellows coupling with split hubs
· For shaft diameters from 10 - 65mm
· High torsional stiffness, compensation of shaft misalignment at low restoring forces
· Radial assembly! Due to the split hub design shafts can be mounted and adjusted before the assembly of the coupling
· Perfect bellows coupling for servo drives, e.g. in testing equipment, automation techniques, packing machines
· Torque range: 18 - 500Nm

Part Number

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the corresponding part number is displayed here.

Product specification
Part Numbers
Catalog

Metal Bellows Coupling with Split Hubs, KB4H | 18 ~ 1400

Product Information

Material

bellows - stainless steel
hub - to size 500: aluminium
hub - from size 800: steel

Hub

bore tolerance: H7

Temperature Range

-30 °C ~ 120 °C
size 800/1400: -30 °C ~ 250 °C

Keyway

optional acc. DIN 6885
biggest bore marked with a #

Drawing

Order Code


Order Code	KB4H / 60	-	83	-	20	-	20	-	(S)
	Type / size		Length L		ØD1 (H7)		ØD2 (H7)		Options

Specification Table

Size	Torque TKN (Nm)	Dimensions (mm)										Technical Data
		L	Ø A	D1/D2	H	C	E	W	K	B	F	Mass (kg)	Moment of Inertia J (g m²)	Spring Stiffness			Misalignment			max. speed (min-1)
		Length (±2)	Outer Ø	Bore Sizes (H7) min~max							Screw (ISO4762) TA (Nm)			torsional CT 10³ (Nm/rad)	radial CR (N/mm)	axial CA (N/mm)	radial ΔKr (mm)	axial ΔKa mm)	angular ΔKw (°)
18	18	63	45	10-25.4	17	5.5	19.5	37	13	47.4	M5	0.1	0.04	20	205	50	0.2	0.5	1.5	12800
		71						45			8	0.15	0.05	15	82	36	0.25	0.5	2	12800
30	30	69	56	10-32	20	7.5	27	35	17	56.4	M6	0.3	0.14	38	720	50	0.15	0.6	1.5	10300
		77		30#				43			15	0.32	0.15	28	225	28	0.25	1	2	10300
60	60	83	66	12-35	23	9.5	31	41	21	66.2	M8	0.5	0.28	75	1150	90	0.15	0.6	1.5	8700
		93						51			40	0.6	0.29	50	340	50	0.25	1	2	8700
80	80	94	82	12-44	28	11	36	47	23.5	82.9	M10	0.9	0.65	128	1200	80	0.2	0.5	1.5	6900
		106						59			84	0.95	0.67	75	400	50	0.25	0.8	2	6900
150	150	95	82	14-44	28	11	36	48	23.5	82.9	M10	0.9	0.82	155	2020	145	0.2	0.5	1.5	6900
		107						60			84	0.95	0.86	105	595	85	0.25	0,8	2	6900
200	200	105	90	16-47	31	12.5	41	51	27	90.8	M12	1.3	2.2	175	2500	145	0.2	0.5	1.5	6400
		117						63			125	1.35	2.7	120	460	82	0.25	0.8	2	6400
300	300	111	110	20-60	40	13	41	55	28	110	M12	1.8	4.2	502	6300	280	0.2	0.5	1.5	6000
		125						69			145	1.85	5.2	285	1400	145	0.25	0.8	2	6000
500	500	133	122	25-70	42	15	51	62	35.5	122	M12	2.50	8.6	690	7790	100	0.2	0.5	1.5	5000
		146						75			145	2.51	9.3	320	970	85	0.25	1	2	5000
800	800	168	157	40-80	55	22.5	66.5	77	45.5	168	M20	14.8	57.65	1270	700	275	0.2	0.8	1.8	5000
											400
1400	1400	168	157	50-80	55	22.5	66.5	77	45.5	168	M20	15.3	58.70	1270	700	275	0.2	0.8	1.8	5000
											400

Data to be displayed: 30; 45; 60

Part Number
KB4H/18-63-[10-25.4/0.1]-[10-25.4/0.1]
KB4H/18-63-[10-25.4/0.1]-N[10-25.4/0.1]
KB4H/18-63-N[10-25.4/0.1]-[10-25.4/0.1]
KB4H/18-63-N[10-25.4/0.1]-N[10-25.4/0.1]
KB4H/18-71-[10-25.4/0.1]-[10-25.4/0.1]
KB4H/18-71-[10-25.4/0.1]-N[10-25.4/0.1]
KB4H/18-71-N[10-25.4/0.1]-[10-25.4/0.1]
KB4H/18-71-N[10-25.4/0.1]-N[10-25.4/0.1]
KB4H/30-69-[10-32/1]-[10-32/1]
KB4H/30-69-[10-32/1]-N[10-32/1]
KB4H/30-69-N[10-32/1]-[10-32/1]
KB4H/30-69-N[10-32/1]-N[10-32/1]
KB4H/30-77-[10-32/1]-[10-32/1]
KB4H/30-77-[10-32/1]-N[10-32/1]
KB4H/30-77-N[10-32/1]-[10-32/1]
KB4H/30-77-N[10-32/1]-N[10-32/1]
KB4H/60-83-[12-35/1]-[12-35/1]
KB4H/60-83-[12-35/1]-N[12-35/1]
KB4H/60-83-N[12-35/1]-[12-35/1]
KB4H/60-83-N[12-35/1]-N[12-35/1]
KB4H/60-93-[12-35/1]-[12-35/1]
KB4H/60-93-[12-35/1]-N[12-35/1]
KB4H/60-93-N[12-35/1]-[12-35/1]
KB4H/60-93-N[12-35/1]-N[12-35/1]
KB4H/80-94-[12-44/1]-[12-44/1]
KB4H/80-94-[12-44/1]-N[12-44/1]
KB4H/80-94-N[12-44/1]-[12-44/1]
KB4H/80-94-N[12-44/1]-N[12-44/1]
KB4H/80-106-[12-44/1]-[12-44/1]
KB4H/80-106-[12-44/1]-N[12-44/1]
KB4H/80-106-N[12-44/1]-[12-44/1]
KB4H/80-106-N[12-44/1]-N[12-44/1]
KB4H/150-95-[14-44/1]-[14-44/1]
KB4H/150-95-[14-44/1]-N[14-44/1]
KB4H/150-95-N[14-44/1]-[14-44/1]
KB4H/150-95-N[14-44/1]-N[14-44/1]
KB4H/150-107-[14-44/1]-[14-44/1]
KB4H/150-107-[14-44/1]-N[14-44/1]
KB4H/150-107-N[14-44/1]-[14-44/1]
KB4H/150-107-N[14-44/1]-N[14-44/1]
KB4H/200-105-[16-47/1]-[16-47/1]
KB4H/200-105-[16-47/1]-N[16-47/1]
KB4H/200-105-N[16-47/1]-[16-47/1]
KB4H/200-105-N[16-47/1]-N[16-47/1]
KB4H/200-117-[16-47/1]-[16-47/1]
KB4H/200-117-[16-47/1]-N[16-47/1]
KB4H/200-117-N[16-47/1]-[16-47/1]
KB4H/200-117-N[16-47/1]-N[16-47/1]
KB4H/300-111-[20-60/1]-[20-60/1]
KB4H/300-111-[20-60/1]-N[20-60/1]
KB4H/300-111-N[20-60/1]-[20-60/1]
KB4H/300-111-N[20-60/1]-N[20-60/1]
KB4H/300-125-[20-60/1]-[20-60/1]
KB4H/300-125-[20-60/1]-N[20-60/1]
KB4H/300-125-N[20-60/1]-[20-60/1]
KB4H/300-125-N[20-60/1]-N[20-60/1]
KB4H/500-133-[25-70/1]-[25-70/1]
KB4H/500-133-[25-70/1]-N[25-70/1]
KB4H/500-133-N[25-70/1]-[25-70/1]
KB4H/500-133-N[25-70/1]-N[25-70/1]

Related to	Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Shaft Bore Dia. (machined) D1 (mm)	Shaft Bore Dia. (machined) D2 (mm)	Outer Dia. A (mm)	Length L (mm)	Allowable Torque (Nm)	Max. Rotational Speed (r/min)	Allowable Lateral Misalignment (mm)	Allowable Angular Misalignment (deg)	Allowable Axial Clearance (±) (mm)	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	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	63	18	12800	0.2	1.5	0.5	10-25,4	10-25,4	25.4	25.4	No	No
Data sheet	-	1	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	63	18	12800	0.2	1.5	0.5	10-25,4	10-25,4	25.4	25.4	No	Yes
Data sheet	-	1	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	63	18	12800	0.2	1.5	0.5	10-25,4	10-25,4	25.4	25.4	Yes	No
Data sheet	-	1	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	63	18	12800	0.2	1.5	0.5	10-25,4	10-25,4	25.4	25.4	Yes	Yes
Data sheet	-	1	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	71	18	12800	0.25	2	0.5	10-25,4	10-25,4	25.4	25.4	No	No
Data sheet	-	1	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	71	18	12800	0.25	2	0.5	10-25,4	10-25,4	25.4	25.4	No	Yes
Data sheet	-	1	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	71	18	12800	0.25	2	0.5	10-25,4	10-25,4	25.4	25.4	Yes	No
Data sheet	-	1	12 Days	10	10 ～ 25.4	10 ～ 25.4	45	71	18	12800	0.25	2	0.5	10-25,4	10-25,4	25.4	25.4	Yes	Yes
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	69	30	10300	0.15	1.5	0.6	10-30	10-30	30	30	No	No
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	69	30	10300	0.15	1.5	0.6	10-30	10-30	30	30	No	Yes
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	69	30	10300	0.15	1.5	0.6	10-30	10-30	30	30	Yes	No
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	69	30	10300	0.15	1.5	0.6	10-30	10-30	30	30	Yes	Yes
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	77	30	10300	0.25	2	1	10-30	10-30	30	30	No	No
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	77	30	10300	0.25	2	1	10-30	10-30	30	30	No	Yes
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	77	30	10300	0.25	2	1	10-30	10-30	30	30	Yes	No
Data sheet	-	1	12 Days	10	10 ～ 32	10 ～ 32	56	77	30	10300	0.25	2	1	10-30	10-30	30	30	Yes	Yes
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	83	60	8700	0.15	1.5	0.6	12-35	12-35	35	35	No	No
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	83	60	8700	0.15	1.5	0.6	12-35	12-35	35	35	No	Yes
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	83	60	8700	0.15	1.5	0.6	12-35	12-35	35	35	Yes	No
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	83	60	8700	0.15	1.5	0.6	12-35	12-35	35	35	Yes	Yes
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	93	60	8700	0.25	2	1	12-35	12-35	35	35	No	No
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	93	60	8700	0.25	2	1	12-35	12-35	35	35	No	Yes
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	93	60	8700	0.25	2	1	12-35	12-35	35	35	Yes	No
Data sheet	-	1	12 Days	10	12 ～ 35	12 ～ 35	66	93	60	8700	0.25	2	1	12-35	12-35	35	35	Yes	Yes
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	94	80	6900	0.2	1.5	0.5	12-44	12-44	44	44	No	No
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	94	80	6900	0.2	1.5	0.5	12-44	12-44	44	44	No	Yes
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	94	80	6900	0.2	1.5	0.5	12-44	12-44	44	44	Yes	No
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	94	80	6900	0.2	1.5	0.5	12-44	12-44	44	44	Yes	Yes
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	106	80	6900	0.25	2	0.8	12-44	12-44	44	44	No	No
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	106	80	6900	0.25	2	0.8	12-44	12-44	44	44	No	Yes
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	106	80	6900	0.25	2	0.8	12-44	12-44	44	44	Yes	No
Data sheet	-	1	12 Days	10	12 ～ 44	12 ～ 44	82	106	80	6900	0.25	2	0.8	12-44	12-44	44	44	Yes	Yes
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	95	150	6900	0.2	1.5	0.5	14-44	14-44	44	44	No	No
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	95	150	6900	0.2	1.5	0.5	14-44	14-44	44	44	No	Yes
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	95	150	6900	0.2	1.5	0.5	14-44	14-44	44	44	Yes	No
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	95	150	6900	0.2	1.5	0.5	14-44	14-44	44	44	Yes	Yes
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	107	150	6900	0.25	2	0.8	14-44	14-44	44	44	No	No
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	107	150	6900	0.25	2	0.8	14-44	14-44	44	44	No	Yes
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	107	150	6900	0.25	2	0.8	14-44	14-44	44	44	Yes	No
Data sheet	-	1	12 Days	10	14 ～ 44	14 ～ 44	82	107	150	6900	0.25	2	0.8	14-44	14-44	44	44	Yes	Yes
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	105	200	6400	0.2	1.5	0.5	16-48	16-48	47	47	No	No
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	105	200	6400	0.2	1.5	0.5	16-48	16-48	47	47	No	Yes
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	105	200	6400	0.2	1.5	0.5	16-48	16-48	47	47	Yes	No
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	105	200	6400	0.2	1.5	0.5	16-48	16-48	47	47	Yes	Yes
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	117	200	6400	0.25	2	0.8	16-48	16-48	47	47	No	No
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	117	200	6400	0.25	2	0.8	16-48	16-48	47	47	No	Yes
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	117	200	6400	0.25	2	0.8	16-48	16-48	47	47	Yes	No
Data sheet	-	1	12 Days	10	16 ～ 47	16 ～ 47	90	117	200	6400	0.25	2	0.8	16-48	16-48	47	47	Yes	Yes
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	111	300	6000	0.2	1.5	0.5	20-60	20-60	60	60	No	No
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	111	300	6000	0.2	1.5	0.5	20-60	20-60	60	60	No	Yes
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	111	300	6000	0.2	1.5	0.5	20-60	20-60	60	60	Yes	No
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	111	300	6000	0.2	1.5	0.5	20-60	20-60	60	60	Yes	Yes
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	125	300	6000	0.25	2	0.8	20-60	20-60	60	60	No	No
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	125	300	6000	0.25	2	0.8	20-60	20-60	60	60	No	Yes
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	125	300	6000	0.25	2	0.8	20-60	20-60	60	60	Yes	No
Data sheet	-	1	12 Days	10	20 ～ 60	20 ～ 60	110	125	300	6000	0.25	2	0.8	20-60	20-60	60	60	Yes	Yes
Data sheet	-	1	12 Days	10	25 ～ 70	25 ～ 70	122	133	500	5000	0.2	1.5	0.5	25-65	25-65	70	70	No	No
Data sheet	-	1	12 Days	10	25 ～ 70	25 ～ 70	122	133	500	5000	0.2	1.5	0.5	25-65	25-65	70	70	No	Yes
Data sheet	-	1	12 Days	10	25 ～ 70	25 ～ 70	122	133	500	5000	0.2	1.5	0.5	25-65	25-65	70	70	Yes	No
Data sheet	-	1	12 Days	10	25 ～ 70	25 ～ 70	122	133	500	5000	0.2	1.5	0.5	25-65	25-65	70	70	Yes	Yes

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Basic information

Type	Bellows Type	Application	Standard / Servo Motor / Stepping Motor	Feature	High Torsional Rigidity / High Torque / High Accuracy / High Durability / No Backlash / Low Moment of Inertia
Bellows Part Material	Stainless Steel

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64Suggestion of an applicable part number.

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The part number is completed.

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

69

71

77

83

93

94

95

105

106

107

111

117

125

133

146
Clear
Allowable Torque(Nm)
18

30

60

80

150

200

300

500
Clear
Max. Rotational Speed(r/min)
5000

6000

6400

6900

8700

10300

12800
Clear
Allowable Lateral Misalignment(mm)
0.15

0.2

0.25
Clear
Allowable Angular Misalignment(deg)
1.5

2
Clear
Applicable Range (Bore 1)
10-30

10-25,4

12-44

12-35

14-44

16-48

20-60

25-65
Clear
Applicable Range (Bore 2)
10-30

10-25,4

12-44

12-35

14-44

16-48

20-60

25-65
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
- KB4H
Clear
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- 2D
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