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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-80-RD-28-38
MJB-80-RD-28-40
MJB-80-RD-28-42
MJB-80-RD-28-45
MJB-80-RD-30-30
MJB-80-RD-30-32
MJB-80-RD-30-35
MJB-80-RD-30-38
MJB-80-RD-30-40
MJB-80-RD-30-42
MJB-80-RD-30-45
MJB-80-RD-32-32
MJB-80-RD-32-35
MJB-80-RD-32-38
MJB-80-RD-32-40
MJB-80-RD-32-42
MJB-80-RD-32-45
MJB-80-RD-35-35
MJB-80-RD-35-38
MJB-80-RD-35-40
MJB-80-RD-35-42
MJB-80-RD-35-45
MJB-80-RD-38-38
MJB-80-RD-38-40
MJB-80-RD-38-42
MJB-80-RD-38-45
MJB-80-RD-40-40
MJB-80-RD-40-42
MJB-80-RD-40-45
MJB-80-RD-42-42
MJB-80-RD-42-45
MJB-80-RD-45-45
MJB-80-WH-20-20
MJB-80-WH-20-22
MJB-80-WH-20-24
MJB-80-WH-20-25
MJB-80-WH-20-28
MJB-80-WH-20-30
MJB-80-WH-20-32
MJB-80-WH-20-35
MJB-80-WH-20-38
MJB-80-WH-20-40
MJB-80-WH-20-42
MJB-80-WH-20-45
MJB-80-WH-22-22
MJB-80-WH-22-24
MJB-80-WH-22-25
MJB-80-WH-22-28
MJB-80-WH-22-30
MJB-80-WH-22-32
MJB-80-WH-22-35
MJB-80-WH-22-38
MJB-80-WH-22-40
MJB-80-WH-22-42
MJB-80-WH-22-45
MJB-80-WH-24-24
MJB-80-WH-24-25
MJB-80-WH-24-28
MJB-80-WH-24-30
MJB-80-WH-24-32
MJB-80-WH-24-35
MJB-80-WH-24-38
MJB-80-WH-24-40
MJB-80-WH-24-42
MJB-80-WH-24-45
MJB-80-WH-25-25
MJB-80-WH-25-28
MJB-80-WH-25-30
MJB-80-WH-25-32
MJB-80-WH-25-35
MJB-80-WH-25-38
MJB-80-WH-25-40
MJB-80-WH-25-42
MJB-80-WH-25-45
MJB-80-WH-28-28
MJB-80-WH-28-30
MJB-80-WH-28-32
MJB-80-WH-28-35
MJB-80-WH-28-38
MJB-80-WH-28-40
MJB-80-WH-28-42
MJB-80-WH-28-45
MJB-80-WH-30-30
MJB-80-WH-30-32
MJB-80-WH-30-35
MJB-80-WH-30-38
MJB-80-WH-30-40
MJB-80-WH-30-42
MJB-80-WH-30-45
MJB-80-WH-32-32

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	28	38	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	40	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	42	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	28	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	30	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	32	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	35	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	38	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	40	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	42	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	30	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	32	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	35	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	38	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	40	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	42	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	32	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	35	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	38	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	40	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	42	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	35	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	38	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	40	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	42	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	38	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	40	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	42	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	40	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	42	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	42	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	500～Less than 1000	45	45	80	114	10001~78000	650	11000	0.1	+1.8 0	2.5X10^-3	Tight fit	A98
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	20	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	22	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	24	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	25	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	28	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	30	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	32	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	35	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	38	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	40	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	42	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	20	45	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	22	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	24	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	25	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	28	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	30	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	32	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	35	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	38	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	40	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	42	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	22	45	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	24	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	25	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	28	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	30	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	32	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	35	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	38	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	40	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	42	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	24	45	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	25	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	28	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	30	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	32	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	35	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	38	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	40	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	42	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	25	45	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	28	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	30	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	32	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	35	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	38	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	40	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	42	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	28	45	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	30	30	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	30	32	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	30	35	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	30	38	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	30	40	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	30	42	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	30	45	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92
1 Piece(s)	Available	11 Days or more	10	100～Less than 500	32	32	80	114	10001~78000	380	11000	0.15	+1.8 0	2.5X10^-3	Tight fit	A92

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

2,720 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

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

10001~78000
Clear

Days to Ship

All

10 Days or Less

11 Days or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Flexible Couplings - MJB series. (Part Numbers)

Basic Information

Configure

Specification/Dimensions

Allowable Torque Range(N•m)

For Shaft Size D1(mm)

For Shaft Size D2(mm)

O.D.(Ø)

Full Length(mm)

Normal Torque(N•m)

Max. Rotational Speed(r/min)

Allowable Lateral Misalignment(mm)

Types of sleeves

Hardness hardness (JIS)

type

Maximum Range of Rotation Number(r/min)