YRT rotary table bearings consist of a thrust/radial seat ring, a thrust/radial shaft ring, a thrust washer, two needle roller cage assemblies and a set of radial cylindrical rollers. The seat ring and shaft ring have evenly distributed mounting screw holes. Turntable precision bearing YRT has high axial and radial load capacity. High tilting stiffness and extremely high precision. Axial/radial roller bearing suitable for rotary tables, chucks and milling heads, as well as bearing configurations in measurements and experiments. YRT series bearings also has high requirements for the matching equipment parts. The tightening torque of the mounting screws must be controlled during installation.
YRT series bearings fully equipped five -axis machining tool spinle.
YRT100 Turntable precision bearing YRT
YRT80 YRT series bearings
Model | boundary dimensions | accuracy（μm） | ||||||||
di | De | H2 | H1 | |||||||
Nominal size | Upper deviation | Lower deviation | Size | Upper deviation | Lower deviation | Height | Part Height | deviation | ||
unit：mm | ||||||||||
YRT50 | 50 | 0 | -0.008 | 126 | 0 | -0.011 | 30 | 20 | ±0.125 | 2 |
YRT80 | 80 | 0 | -0.009 | 146 | 0 | -0.011 | 35 | 23.35 | ±0.155 | 3 |
YRT100 | 100 | 0 | -0.01 | 185 | 0 | -0.015 | 38 | 25 | ±0.1755 | 3 |
YRT120 | 120 | 0 | -0.01 | 210 | 0 | -0.015 | 40 | 26 | ±0.1755 | 3 |
YRT150 | 150 | 0 | -0.013 | 240 | 0 | -0.015 | 40 | 26 | ±0.1755 | 3 |
YRT180 | 180 | 0 | -0.013 | 280 | 0 | -0.018 | 43 | 29 | ±0.1755 | 4 |
YRT200 | 200 | 0 | -0.015 | 300 | 0 | -0.018 | 45 | 30 | ±0.1755 | 4 |
YRT260 | 260 | 0 | -0.018 | 385 | 0 | -0.02 | 55 | 36.5 | ±0.2000 | 6 |
YRT325 | 325 | 0 | -0.023 | 450 | 0 | -0.023 | 60 | 40 | ±0.2000 | 6 |
YRT395 | 395 | 0 | -0.023 | 525 | 0 | -0.028 | 65 | 42.5 | ±0.2000 | 6 |
YRT460 | 460 | 0 | -0.023 | 600 | 0 | -0.028 | 70 | 46 | ±0.2255 | 6 |
YRT580 | 580 | 0 | -0.025 | 750 | 0 | -0.035 | 90 | 60 | ±0.2500 | 10 |
YRT650 | 650 | 0 | -0.038 | 870 | 0 | -0.05 | 122 | 78 | ±0.2500 | 10 |
YRT850 | 850 | 0 | -0.05 | 1095 | 0 | -0.063 | 124 | 80.5 | ±0.3000 | 12 |
YRT950 | 950 | 0 | -0.05 | 1200 | 0 | -0.063 | 132 | 86 | ±0.3000 | 12 |
YRT1030 | 1030 | 0 | -0.072 | 1300 | 0 | -0.08 | 145 | 92.5 | ±0.4000 | 15 |
bearing type | boundary dimensions | fixing holes | ||||||||||||
d | D | H | H1 | C | d1 | dn | dm | inner ring | outerring | |||||
d0 | ds | Ts |
| dl | Number | |||||||||
quantity | quantity | |||||||||||||
unit：mm | ||||||||||||||
YRT50 | 50 | 126 | 30 | 20 | 10 | 105 | 63 | 116 | 5.6 | - | - | 10 | 5.6 | 12 |
YRT80 | 80 | 146 | 35 | 23.35 | 12 | 130 | 92 | 138 | 5.6 | 10 | 4 | 10 | 4.6 | 12 |
YRT100 | 100 | 185 | 38 | 25 | 12 | 160 | 112 | 170 | 5.6 | 10 | 5.4 | 16 | 5.6 | 15 |
YRT120 | 120 | 210 | 40 | 26 | 12 | 184 | 135 | 195 | 7 | 11 | 6.2 | 22 | 7 | 21 |
YRT150 | 150 | 240 | 40 | 26 | 12 | 214 | 165 | 225 | 7 | 11 | 6.2 | 34 | 7 | 33 |
YRT180 | 180 | 280 | 43 | 29 | 15 | 244 | 194 | 260 | 7 | 11 | 6.2 | 46 | 7 | 45 |
YRT200 | 200 | 300 | 45 | 30 | 15 | 274 | 215 | 285 | 7 | 11 | 6.2 | 46 | 7 | 45 |
YRT260 | 260 | 385 | 55 | 36.5 | 18 | 345 | 280 | 365 | 9.3 | 15 | 8.2 | 34 | 9.3 | 33 |
YRT325 | 325 | 450 | 60 | 40 | 20 | 415 | 342 | 430 | 9.3 | 15 | 8.2 | 34 | 9.3 | 33 |
YRT395 | 395 | 525 | 65 | 42.5 | 20 | 486 | 415 | 505 | 9.3 | 15 | 8.2 | 46 | 9.3 | 45 |
YRT460 | 460 | 600 | 70 | 46 | 22 | 560 | 482 | 580 | 10 | 15 | 8.2 | 46 | 10 | 45 |
YRT580 | 580 | 750 | 90 | 60 | 30 | 700 | 610 | 720 | 11.4 | 18 | 11 | 46 | 11.4 | 42 |
YRT650 | 650 | 870 | 122 | 78 | 34 | 800 | 680 | 830 | 14 | 20 | 13 | 46 | 14 | 42 |
YRT850 | 850 | 1095 | 124 | 80.5 | 37 | 1018 | 890 | 1055 | 18 | 26 | 17 | 58 | 18 | 54 |
YRT950 | 950 | 1200 | 132 | 86 | 40 | 1130 | 990 | 1160 | 18 | 26 | 17 | 58 | 18 | 54 |
YRT1030 | 1030 | 1300 | 145 | 92.5 | 40 | 1215 | 1075 | 1255 | 18 | 26 | 17 | 60 | 18 | 66 |
- Lightly preloaded axial/radial roller bearing
- For the perfect function of the bearing, a high-quality contact surface is required
- Test the dynamic friction torque at 5 rpm. The static friction torque should be
Dynamic friction
- The tightening torque must be applied in 3 steps in a cross-tightening sequence.
- Lightly preloaded bearings
- The bearings require a high-quality mating surface to function perfectly
- Test the dynamic friction torque at 5 r/min. The static friction torque should be 2 - 2.5 times the dynamic friction torque
- The tightening torque must be applied in 3 steps in a cross-tightening sequence.
