RTC650 Bore 650 Mm, Axial/radial Cylindrical Roller Bearing, Double Direction, RTC
The RTC650 Rotary table bearings are suitable for high-precision, high-rigidity rotary applications. Classic applications include CNC machine tool rotary tables and indexing tables, industrial robot joints, military radar antennas, aerospace measurement equipment, astronomical telescopes, and medical devices.
The RTC650 bearing is a Axial/radial cylindrical roller bearing, double direction, RTC with an inner diameter of 650 mm , an outer diameter of 870 mm, a width of 122 mm. 50Mn,42CrMo rings, Its dynamic radial rated load is approximately 490000 N, its static radial rated load is approximately 1800000 N. Its dynamic axial rated load is approximately 1040000 N, its static axial rated load is approximately 8000000 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
RTC650 bearings ( 650 mm x 870 mm x 122 mm) have the advantages of It can withstand axial, radial and overturning moments simultaneously, has a compact structure, is easy to install, and is suitable for heavy-duty rotation, and are therefore widely used in the high-end CNC machine tools, robots, indexing tables and rotary tables.
| Part Number | RTC650 |
| Bearing Type | Axial/radial cylindrical roller bearing, double direction, RTC |
| Manufacturer Part Code | RTC 650 |
| Series | RTC = Where comparatively lower friction and higher speeds are required |
| Seal type | Open |
| L-section ring | For mounting with unsupported L-section ring |
| Rolling Element Type | cylindrical rollers |
| Rolling Element Material | GCr15 |
| Ring Material | 50Mn,42CrMo |
| Rows NO. | Three |
| Alias | Super Precision Bearings for Rotary Tables |
| m Weight [kg] | 169 |
| Reference From | FAG RTC650 |
| Similar model | RTC650-T52EB RTC650-T52EA |
| Main Dimensions | |
| d φ Inside [inch] | 25.591 |
| D Φ Outside [inch] | 34.252 |
| H High [inch] | 4.803 |
| H1 [inch] | 3.071 |
| C [inch] | 1.339 |
| D1 [inch] | 31.417 |
| J [inch] | 26.772 |
| J1 [inch] | 32.677 |
| Performance | |
| Cr Dynamic Radial [lbf] | 110152 |
| C0r Static Radial [lbf] | 404640 |
| Ca Dynamic Axial [lbf] | 233792 |
| C0a Static Axial [lbf] | 1798400 |
| nB Reference speed (grease) [r/min] | 150 |
| nG Limiting speed (oil) [r/min] | 240 |
| Operating temperature - T(min) [°C] | -30 |
| Operating temperature - T(max) [°C] | 120 |
| Mounting dimensions | |
| d1 Fixing screws (Inner ring) [inch] | 0.551 |
| d2 Fixing screws (Inner ring) [inch] | 0.787 |
| a Fixing screws (Inner ring) [inch] | 0.512 |
| Fixing holes Inner ring Quantity | 42 |
| d3 Fixing screws (Outer ring) [inch] | 0.551 |
| Fixing holes Outer ring Quantity | 48 |
| n Pitch quantity | 48 |
| t Pitch separation angle [°] | 7.5 |
| G Threaded extraction hole | M12 |
| Threaded extraction hole Quantity | 6 |
| MA Screw tightening torque [Nm] | 120 |
| MR Bearing friction torque [Nm] | 183 |
| Additional information |
The RTC650 Rotary table bearings are precision bearings with a thrust-radial combined structure. They mainly consist of a housing ring, a shaft ring, two rows of axial cylindrical roller cage assemblies, and one row of radial cylindrical roller cage assemblies. The housing ring and shaft ring are evenly distributed with mounting screw holes for easy direct fixing.
The advantages of rotary table bearing design are that it can simultaneously withstand radial loads, bidirectional axial loads and overturning moments. The negative clearance preload design ensures extremely high rigidity and rotational accuracy. Moreover, the compact structure greatly simplifies rotary table design and reduces installation and maintenance costs.
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