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Honed tube or skived & roller burnished tube is steel tube with ID honed or skived&roller burnished to ensure tight ID tolerance like H7, H8, or H9 and ID surface roughness like Ra0.20um max or Ra0.35um max.
| ID Tolerance level of Honed Tubes | ||||
ID Range | H7 | H8 | H9 | H10 |
18<ID≤30 | +0/+0.021 | +0/+0.033 | +0/+0.052 | +0/+0.084 |
30<ID≤50 | +0/+0.025 | +0/+0.039 | +0/+0.062 | +0/+0.100 |
50<ID≤80 | +0/+0.030 | +0/+0.046 | +0/+0.074 | +0/+0.120 |
80<ID≤120 | +0/+0.035 | +0/+0.054 | +0/+0.087 | +0/+0.140 |
120<ID≤180 | +0/+0.040 | +0/+0.063 | +0/+0.100 | +0/+0.160 |
180<ID≤250 | +0/+0.046 | +0/+0.072 | +0/+0.115 | +0/+0.185 |
250<ID≤315 | +0/+0.052 | +0/+0.081 | +0/+0.130 | ∕ |
| Regular sizes of hydraulic cylinder tubes | ||||||
33*25 | 70*60 | 90*80 | 112*100 | 139.7*114.3 | 190*160 | 265*215 |
35*25 | 72*60 | 92*80 | 115*100 | 140*120 | 184.15*165.1 | 245*220 |
40*32 | 75*60 | 95*80 | 118*100 | 145*120 | 200*170 | 270*220 |
42*32 | 73*63 | 100*80 | 120*100 | 133.35*120.65 | 200*180 | 273*220 |
45*35 | 75*63 | 100*85 | 125*100 | 140*125 | 210*180 | 254*228.6 |
50*40 | 76*63 | 101.6*88.9 | 127*100 | 150*125 | 220*190 | 260*230 |
55*40 | 76.2*63.5 | 100*90 | 114.3*101.6 | 152*125 | 230*200 | 270*230 |
55*45 | 80*65 | 102*90 | 127*101.6 | 150*130 | 235*200 | 275*230 |
60*50 | 80*70 | 105*90 | 120*105 | 160*140 | 240*200 | 280*230 |
63*50 | 82*70 | 108*90 | 125*110 | 170*140 | 245*200 | 300*250 |
65*50 | 85*70 | 110*90 | 130*110 | 170*150 | 250*200 | 325*240 |
70*50 | 90*75 | 105*95 | 140*110 | 180*150 | 260*210 | 325*260 |
63.5*50.8 | 88.9*76.2 | 110*100 | 127*114.3 | 180*160 | 260*215 | 325*280 |
