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Z8 type expansion joint sleeve

Detailed parameters of Z8 type expansion coupling sleeve

Z8 type expansion coupling sleeve characteristics: Z8 type locking coupling disc Z8 type expansion sleeve is suitable for coupling the shaft and the parts on the shaft to transmit torque and axial force.
Torque moment and axial moment of expansion sleeve 　　
1 Torque Mt refers to the maximum theoretical torque when transmitting pure torque, and the axial force Ft refers to the maximum axial force that can be transmitted when there is no transmission torque.If not only transmitting torque but also transmitting axial force, the synthetic torque Mt1 should be calculated as follows: 　　
Where: 　　
Mt1—synthetic torque, KN.m 　　
Mt —theoretical torque, KN.m 　　
d —Shaft diameter, m 　　
p —the axial force to be transmitted,
KN 　　
2 Bolt tightening torque MA° 　　
The torque Mt and axial force Ft specified in the standard are calculated according to the corresponding screw tension, and the tightening torque of the screw should reach the required rated value in the technical parameter table. 
The basic dimensions and parameters of the Z8 expansion sleeve: 

A Basic dimensions (mm) Dimensions						Rated load		Socket head cap screws		Pressure on joint surface between expansion sleeve and shaft pt N / mm2	Pressure on the joint surface between expansion sleeve and wheel load pt  N / mm2	Screw tightening torque MA nm	weight kg
d	D	L	L0	L1	L2	Axial force Ft kN	Torque Mt kN ·m	d1	n
20 22 24 25 28 30 32 35 38 40	47 47 50 50 55 55 60 60 65 65	17 17 17 17 17 17 17 17 17 17	22 22 22 22 22 22 22 22 22 22	28 28 28 28 28 28 28 28 28 28	34 34 34 34 34 34 34 34 34 34	30 30 30 36 36 36 48 48 48 48	0.29 0.32 0.37 0.45 0.50 0.54 0.77 0.84 0.91 0.96	M6 × 20 M6 × 20 M6 × 20 M6 × 20 M6 × 20 M6 × 20 M6 × 20 M6 × 20 M6 × 20 M6 × 20	5 5 5 6 6 6 8 8 8 8	220 200 200 215 200 190 215 190 195 190	95 95 95 110 100 100 115 110 115 105	17	0.25 0.25 0.27 0.27 0.32 0.35 0.37 0.34 0.40 0.38
45 50 55 60 63 65	75 80 85 90 95 95	20 20 20 20 20 20	25 25 25 25 25 25	33 33 33 33 28 33	41 41 41 41 41 41	77 77 88 88 100 100	1.75 1.93 2.45 2.70 3.18 3.25	M8 × 25 M8 × 25 M8 × 25 M8 × 25 M8 × 25 M8 × 25	7 7 8 8 9 9	230 210 215 190 205 200	135 130 135 125 140 135	41	0.63 0.68 0.73 0.78 0.89 0.83
70 75 80 85 90 95	110 115 120 125 130 135	24 24 24 24 24 24	30 30 30 30 30 30	40 40 40 40 40 40	50 50 50 50 50 50	141 141 141 159 159 176	5.00 5.25 5.60 6.75 7.10 8.35	M10 × 30 M10 × 30 M10 × 30 M10 × 30 M10 × 30 M10 × 30	8 8 8 9 9 10	220 200 190 200 190 200	140 130 125 135 130 140	83	1.33 1.40 1.48 1.55 1.63 1.70
100 110 120 130	145 155 165 180	26 26 26 34	32 32 32 40	44 44 44 52	56 56 56 64	205 205 231 308	10.30 11.25 13.9 20.00	M12 × 30 M12 × 30  M12 × 30 M12 × 30	8 8 9 12	210 190 210 190	145 135 145 140	145	2.60 2.80 3.00 4.60
140 150 160 170 180 190 200	190 200 210 225 235 250 260	34 34 34 44 44 44 44	40 40 40 50 50 50 50	54 54 54 64 64 64 64	68 68 68 78 78 78 78	317 352 287 422 422 528 528	22.25 26.3 31.0 35.9 38.0 50.1 52.8	M14 × 40 M14 × 40 M14 × 40 M14 × 40 M14 × 40 M14 × 40 M14 × 40	9 10 11 12 12 15 15	180 190 190 150 145 170 160	130 140 145 115 110 130 125	230	4.9 5.20 5.50 5.75 8.15 9.50 9.90
220 240 260	285 305 325	50 50 50	56 56 56	72 72 72	88 88 88	587 734 880	64.5 88 114	M16 × 40 M16 × 40 M16 × 40	12 15 18	145 165 180	110 130 145	355	13.40 14.30 15.50
280 300	355 375	60 60	66 66	84 84	102 102	948 1059	132 159	M18 × 50 M18 × 50	16 18	150 160	120 125	485	22.90 24.40
320 340	405 425	74 74	81 81	101 101	121 121	1374 1623	220 272.5	M20 × 50 M20 × 50	18 21	150 175	120 135	690	36.10 38.40
360 380 400	455 475 495	86 86 86	94 94 94	116 116 116	138 138 138	1710 1995 1995	308 379 399	M22 × 60 M22 × 60 M22 × 60	18 21 21	140 155 150	110 125 120	930	46.20 55.00 61.00

 

The Z8 type expansion sleeve is suitable for the connection of the shaft and the parts on the shaft to transmit torque and axial force. 
Markup example
Z300 type expansion coupling sleeve with inner diameter d=375mm and outer diameter D=3mm:
胀套Z8-300×375 JB/T7934-1999