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Z20 type expansion coupling sleeve

Detailed parameters of Z20 type expansion coupling sleeve

The Z20 type expansion coupling sleeve is easy to disassemble and has good interchangeability. Because the expansion sleeve can combine the shaft hub with a larger matching gap, the bolts are loosened when disassembling, and the connected parts can be easily disassembled. When it is tight, the contact surface is tightly fitted and does not rust, and it is also easy to disassemble.

The basic dimensions and parameters of the Z20 expansion coupling sleeve:

A basic size (mm)							Rated load		Socket head cap screws			weight  kg
d	dw	D	D1	L4	L	L3	Torque Mt kN. m	Axial force Ft kN	d1	n	MA N. m
25	18 20	60	37.5	27.5	20	17	0.190 0.255	21 25	M6 × 18	9	17	0.37
30	20 22 24	65	42.5	27.5	20	17	0.205 0.270 0.340	20 24 28	M6 × 18	9	17	0.42
35	25 28 30	72	47.5	27.5	20	17	0.365 0.490 0.585	29 35 39	M6 × 18	12	17	0.48
40	30 32 34 35	78	52.5	27.5	20	17	0.555 0.590 0.710 0.770	37 37 42 44	M6 × 18	15	17	0.54
45	35 36 38	92	60	33.5	24	20	0.960 1.030 1.200	55 57 63	M8 × 22	12	41	0.92
50	38 40 42	98	65	33.5	24	24	1.010 1.160 1.320	53 58 63	M8 × 22	12	41	1.0
55	42 45 48	105	70	33.5	24	24	1.330 1.590 1.880	63 70 78	M8 × 22	14	41	1.1
60	48 50 52	110	75	33.5	24	24	1.600 1.780 1.890	67 71 73	M8 × 22	14	41	1.2
70	55 58 60	138	90	39.5	28	24	2.930 3.370 3.690	106 116 123	M10 × 25	14	83	2.3
80	62 65 68 70	145	100	39.5	28	24	3.140 3.570 4.020 4.350	101 110 118 124	M10 × 25	14	83	2.4
90	70 75 78	160	110	39.5	28	24	4.090 4.890 5.420	117 130 139	M10 × 25	16	83	2.8
100	78 80 82 85	180	122.5	47	33	26	5.980 6.370 6.490 7.160	153 159 158 168	M12 × 30	14	145	3.8
110	85 88 90 95	190	132.5	47	33	26	6.180 6.800 7.240 8.380	145 154 160 176	M12 × 30	14	145	4.1
120	95 100 105	205	142.5	47	33	26	8.250 9.450 10.740	173 189 204	M12 × 30	16	145	4.7
140	110 115 120	230	165	52	38	34	12.860 14.440 16.140	233 251 269	M12 × 35	22	145	7.4
160	125 130 135 140	260	185	52	38	34	17.130 18.990 20.940 23.000	274 292 310 328	M12 × 35	26	145	9.2
Note: The mechanical performance grade of Z20 expansion set screws is 12.9