HONZA Bearing
YRT turntable bearing
YRT turntable bearing is a slewing mechanism whose outer ring rotates and inner ring supports. It is mainly divided into three series: YRT type, YRTS type and YRTM type. These three series bearings have the same installation size, different internal structures and similar performances. YRT series bearings are composed of three rows of rollers, two rows of axial rollers ensure a stable axial bearing capacity, and one row of radial rollers ensures that the bearings can withstand radial force and overturning moment, and are suitable for slewing mechanisms with axial loads. YRT turntable bearings are mainly used in CNC machine tool manufacturing.
YRT rotary table bearing is composed of a thrust/radial shaft ring, a thrust washer, two needle roller cage assemblies and a set of radial cylindrical rollers. The seat ring and the shaft ring have evenly distributed screw holes for installation. This type of bearing has high axial and radial load carrying capacity. High tilt stiffness and high precision. Suitable for bearing arrangements in rotary tables, chucks and milling heads as well as in measurements and experiments. This type of bearing also has higher requirements on the matching equipment parts. During installation, the tightening torque of the mounting screws must be controlled.
Scope of application: It is widely used in precision devices such as precision rotary tables, CNC rotary tables, vertical grinding machines, dividing heads, gear hobbing machines, and workpiece shafts of gear milling machines.
| 公称型号Bearing Type | 外形尺寸 Dimension | 固定孔The fixing hole | |||||||||||||
| d | D | H | H1 | H2 | C | d1 | dn | dm | 内圈 Inner ring | 外圈Outer ring | |||||
| 单位：mm | do | ds | Ts | 数量4）QTY4） | dL | 数量4）QTY4） | |||||||||
| Unit：mm | mm | mm | |||||||||||||
| YRTS200 | 200 | 300 | 45 | 30 | 15 | 15 | 274 | 215 | 285 | 7 | 11 | 6.2 | 46 | 7 | 45 |
| YRTS260 | 260 | 385 | 55 | 36.5 | 18.5 | 18 | 345 | 280 | 365 | 9.3 | 15 | 8.2 | 34 | 9.3 | 33 |
| YRTS325 | 325 | 450 | 60 | 40 | 20 | 20 | 415 | 342 | 430 | 9.3 | 15 | 8.2 | 34 | 9.3 | 33 |
| YRTS395 | 395 | 525 | 65 | 42.5 | 22.5 | 20 | 486 | 415 | 505 | 9.3 | 15 | 8.2 | 46 | 9.3 | 45 |
| YRTS460 | 460 | 600 | 70 | 46 | 24 | 22 | 560 | 482 | 580 | 10 | 15 | 8.2 | 46 | 9.3 | 45 |
| 联接螺钉数量Screw connection QTY | 螺纹退卸孔Connect Screw holes | 节距1)Pitch1) | 螺钉拧紧力矩The tightening torque | 基本额定载荷Basic rated load | 限转速5)Limited speed | 实际重量Weight | 轴承代号Type | ||||
| 轴向Axial | 径向Radial | ||||||||||
| 动Dynamic | 静Static | 动Dynamic | 静Static | ||||||||
| t | 脂润滑Grease lubrication | ||||||||||
| G | 数量 | 数量Xt | Nm | kN | r/min | ≈Kg | |||||
| 2 | M8 | 3 | 48×7.5° | 14 | 105 | 635 | 78 | 202 | 950 | 9.7 | YRT200 |
| 2 | M12 | 3 | 36×10° | 34 | 131 | 840 | 85 | 275 | 800 | 18.3 | YRT260 |
| 2 | M12 | 3 | 36×10° | 34 | 191 | 1260 | 109 | 300 | 680 | 25 | YRT325 |
| 2 | M12 | 3 | 48×7.5° | 34 | 214 | 1540 | 121 | 390 | 600 | 33 | YRT395 |
| 2 | M12 | 3 | 48×7.5° | 34 | 221 | 1690 | 168 | 570 | 500 | 45 | YRT460 |
HONZA Bearing