YRT SSM Precision Turntable Bearing

YRT SSM Precision Turntable Bearing

The YRT SSM Precision Turntable Bearing designed by SBI is a precise axial-radial combined bearing. With an electric survey institution composed to the bearing as a unit, it precisely measures and controls the circular angle and displacement. It is greatly applied in the massive broad rotating table of the numerical control machine and many other machines with the need of high-precision control and measure of the angle and displacement, such as the missile turret, satellite launcher, tank turret, Radar turn table, surgery turn table, electric soldering turn table etc

Specifications of the YRT SSM Precision Turntable Bearing

Model Weight kg Dimension(mm) Bolt hole diameter
d D H H1 HM C DM D1 Li La Inner ring
d1 d2 a No.
SSM150 6.2 150 240 41 27 10 12 214 214 165 225 7 11 6.2 34
SSM180 7.7 180 280 44 30 10 15 244.5 244 194 260 7 11 6.2 46
SSM200 9.7 200 300 45 30 10 15 271.2 274 215 285 7 11 6.2 46
SSM260 18.3 260 385 55 36.5 13.5 18 343.8 345 280 365 9.3 15 8.2 34
SSM325 25 325 450 60 40 15 20 412.6 415 342 430 9.3 15 8.2 34
SSM395 33 395 525 65 42.5 17.5 20 485.5 486 415 505 9.3 15 8.2 46
SSM460 45 460 600 70 46 19 22 563 560 482 580 9.3 15 8.2 46
SSM580 89 580 750 90 60 22.5 30 697.7 700 610 720 11.4 18 11 46
SSM650 170 650 870 122 78 33 34 797.7 800 680 830 14 20 13 46
SSM850 253 850 1095 124 80.5 30.5 37 1015 1018 890 1055 18 26 17 58
SSM950 312 950 1200 132 86 32.5 40 1127 1130 990 1160 18 26 17 58
SSM1030 375 1030 1300 145 92.5 36 40 1212 1215 1075 1255 18 26 17 70
Model Bolt hole diameter Number of Screw Thread hole Hole pitch Screw moment Load rating Friction moment*2
*1 (KN)
Outer ring G No. No.×t Ca Coa Cr Cor
d3 No. Nm Nm
SSM150 7 33 2 M8 3 36×10º 14 85 510 77 179 13
SSM180 7 45 2 M8 3 48×7.5º 14 92 580 83 209 14
SSM200 7 45 2 M8 3 48×7.5º 14 98 650 89 236 15
SSM260 9.3 33 2 M12 3 36×10º 34 109 810 102 310 25
SSM325 9.3 33 2 M12 3 36×10º 34 186 1710 134 415 48
SSM395 9.3 45 2 M12 3 48×7.5º 34 202 2010 133 435 55
SSM460 9.3 45 2 M12 3 48×7.5º 34 217 2300 187 650 70
SSM580 11.4 42 2 M12 6 48×7.5º 68 390 3600 211 820 140
SSM650 14 42 2 M12 6 48×7.5º 116 495 5200 415 1500 200
SSM850 18 54 2 M16 6 60×6º 284 560 6600 475 1970 300
SSM950 18 54 2 M16 6 60×6º 284 1040 10300 600 2450 600
SSM1030 18 66 2 M16 6 72×5º 284 1080 11000 620 2650 800

*1 including the bolt hole and thread hole.
*2 mounting screws 10.9 as standard.
*3 bearing friction moment is measured at 5r/min, starting moment is 2-2.5 times of the value in the table

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