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Flexible Couplings - MJB series. (Part Numbers)

Volume Discount

NBK

Flexible spider spacer type couplings, series MJB. Excellent for high torque transmission. Excellent flexibility. Absorbs torsional vibration as well as eccentricity. It has electrical resistance.

Part Number

Configured Part Number is shown.

: 30; 60; 90

Part Number
MJB-95-ERD-38-45
MJB-95-ERD-38-48
MJB-95-ERD-38-50
MJB-95-ERD-40-40
MJB-95-ERD-40-42
MJB-95-ERD-40-45
MJB-95-ERD-40-48
MJB-95-ERD-40-50
MJB-95-ERD-42-42
MJB-95-ERD-42-45
MJB-95-ERD-42-48
MJB-95-ERD-42-50
MJB-95-ERD-45-45
MJB-95-ERD-45-48
MJB-95-ERD-45-50
MJB-95-ERD-48-48
MJB-95-ERD-48-50
MJB-95-ERD-50-50
MJB-95-EWH-25-25
MJB-95-EWH-25-28
MJB-95-EWH-25-30
MJB-95-EWH-25-32
MJB-95-EWH-25-35
MJB-95-EWH-25-38
MJB-95-EWH-25-40
MJB-95-EWH-25-42
MJB-95-EWH-25-45
MJB-95-EWH-25-48
MJB-95-EWH-25-50
MJB-95-EWH-28-28
MJB-95-EWH-28-30
MJB-95-EWH-28-32
MJB-95-EWH-28-35
MJB-95-EWH-28-38
MJB-95-EWH-28-40
MJB-95-EWH-28-42
MJB-95-EWH-28-45
MJB-95-EWH-28-48
MJB-95-EWH-28-50
MJB-95-EWH-30-30
MJB-95-EWH-30-32
MJB-95-EWH-30-35
MJB-95-EWH-30-38
MJB-95-EWH-30-40
MJB-95-EWH-30-42
MJB-95-EWH-30-45
MJB-95-EWH-30-48
MJB-95-EWH-30-50
MJB-95-EWH-32-32
MJB-95-EWH-32-35
MJB-95-EWH-32-38
MJB-95-EWH-32-40
MJB-95-EWH-32-42
MJB-95-EWH-32-45
MJB-95-EWH-32-48
MJB-95-EWH-32-50
MJB-95-EWH-35-35
MJB-95-EWH-35-38
MJB-95-EWH-35-40
MJB-95-EWH-35-42
MJB-95-EWH-35-45
MJB-95-EWH-35-48
MJB-95-EWH-35-50
MJB-95-EWH-38-38
MJB-95-EWH-38-40
MJB-95-EWH-38-42
MJB-95-EWH-38-45
MJB-95-EWH-38-48
MJB-95-EWH-38-50
MJB-95-EWH-40-40
MJB-95-EWH-40-42
MJB-95-EWH-40-45
MJB-95-EWH-40-48
MJB-95-EWH-40-50
MJB-95-EWH-42-42
MJB-95-EWH-42-45
MJB-95-EWH-42-48
MJB-95-EWH-42-50
MJB-95-EWH-45-45
MJB-95-EWH-45-48
MJB-95-EWH-45-50
MJB-95-EWH-48-48
MJB-95-EWH-48-50
MJB-95-EWH-50-50
MJB-95-RD-25-25
MJB-95-RD-25-28
MJB-95-RD-25-30
MJB-95-RD-25-32
MJB-95-RD-25-35
MJB-95-RD-25-38

Minimum order quantity	Volume Discount	Days to Ship	RoHS	Allowable Torque Range (N•m)	For Shaft Size D1 (mm)	For Shaft Size D2 (mm)	O.D. (Ø)	Full Length (mm)	Maximum Range of Rotation Number (r/min)	Normal Torque (N•m)	Max. Rotational Speed (r/min)	Allowable Lateral Misalignment (mm)	Allowable Axial Misalignment (mm)	Moment of Inertia (kg･m²)	Types of sleeves	Hardness hardness (JIS)
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	45	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	48	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	50	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	40	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	42	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	45	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	48	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	50	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	42	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	45	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	48	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	50	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	45	45	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	45	48	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	45	50	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	48	48	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	48	50	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	50	50	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Easy fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	25	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	28	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	30	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	32	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	35	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	38	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	40	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	28	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	30	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	32	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	35	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	38	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	40	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	30	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	32	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	35	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	38	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	40	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	32	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	35	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	38	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	40	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	35	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	38	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	40	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	38	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	40	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	40	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	42	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	45	45	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	45	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	45	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	48	48	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	48	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	50	50	95	126	4001~10000	530	10000	0.15	+2.0 0	5.4X10^-3	Easy fit	A92
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	25	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	28	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	30	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	32	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	35	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	25	38	95	126	4001~10000	900	10000	0.1	+2.0 0	5.4X10^-3	Tight fit	A98

Basic Information

Type	Jaw Type	Application	Standard / Servo Motor / Stepping Motor	Feature	High Torque / Vibration Absorption
Body Material	1045 Carbon Steel	Category	Coupling body	Allowable Angular Misalignment(deg)	1
Allowable Lateral Misalignment Range(mm)	0.02~0.2	Buffer Part Material	Polyurethane	Operating Temperature Range(℃)	-20::60
Construction	Bushings Type

Configure

576 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

For Shaft Size D1(mm)
8

9.525

10

11

12

14

15

16

18

19

20

22

24

25

28

30

32

35

38

40

42

45

48

50
Clear
For Shaft Size D2(mm)
8

9.525

10

11

12

14

15

16

18

19

20

22

24

25

28

30

32

35

38

40

42

45

48

50
Clear
O.D.(Ø)
40

55

65

80

95
Clear
Full Length(mm)
66

78

90

114

126
Clear
Maximum Range of Rotation Number(r/min)
4001~10000

10001~78000
Clear
Normal Torque(N•m)
9.8

20

34

42

70

92

120

150

190

260

320

380

400

530

650

810

900

1120
Clear
Max. Rotational Speed(r/min)
10000

11000

14000

17000

23000
Clear
Allowable Lateral Misalignment(mm)
0.08

0.1

0.15

0.2
Clear
Types of sleeves
- Easy fit
- Tight fit
Clear
Hardness hardness (JIS)
- D64
- A80
- A92
- A98
Clear
type
- MJB
Clear
Allowable Torque Range(N•m)
5.01~10.00

10.01~20.00

20.01~50.00

50.01~100.00

100～Less than 500

500～Less than 1000

1000～Less than 5000
Clear

Days to Ship

All

10 Days or Less

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Flexible Couplings - MJB series. (Part Numbers)

Basic Information

Configure

Specification/Dimensions

For Shaft Size D1(mm)

For Shaft Size D2(mm)

O.D.(Ø)

Full Length(mm)

Maximum Range of Rotation Number(r/min)

Normal Torque(N•m)

Max. Rotational Speed(r/min)

Allowable Lateral Misalignment(mm)

Types of sleeves

Hardness hardness (JIS)

type

Allowable Torque Range(N•m)