RTC850 Bore 850 Mm, Axial/radial Cylindrical Roller Bearing, Double Direction, RTC
The RTC850 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 RTC850 bearing is a Axial/radial cylindrical roller bearing, double direction, RTC with an inner diameter of 850 mm , an outer diameter of 1095 mm, a width of 124 mm. 50Mn,42CrMo rings, Its dynamic radial rated load is approximately 455000 N, its static radial rated load is approximately 1730000 N. Its dynamic axial rated load is approximately 1000000 N, its static axial rated load is approximately 8650000 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
RTC850 bearings ( 850 mm x 1095 mm x 124 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 | RTC850 |
| Bearing Type | Axial/radial cylindrical roller bearing, double direction, RTC |
| Manufacturer Part Code | RTC 850 |
| 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] | 236 |
| Reference From | FAG RTC850 |
| Similar model | RTC850-T52EB RTC850-T52EA |
| Main Dimensions | |
| d φ Inside [inch] | 33.465 |
| D Φ Outside [inch] | 43.110 |
| H High [inch] | 4.882 |
| H1 [inch] | 3.169 |
| C [inch] | 1.457 |
| D1 [inch] | 40.000 |
| J [inch] | 35.039 |
| J1 [inch] | 41.535 |
| Performance | |
| Cr Dynamic Radial [lbf] | 102284 |
| C0r Static Radial [lbf] | 388904 |
| Ca Dynamic Axial [lbf] | 224800 |
| C0a Static Axial [lbf] | 1944520 |
| nB Reference speed (grease) [r/min] | 120 |
| nG Limiting speed (oil) [r/min] | 180 |
| Operating temperature - T(min) [°C] | -30 |
| Operating temperature - T(max) [°C] | 120 |
| Mounting dimensions | |
| d1 Fixing screws (Inner ring) [inch] | 0.709 |
| d2 Fixing screws (Inner ring) [inch] | 1.024 |
| a Fixing screws (Inner ring) [inch] | 0.689 |
| Fixing holes Inner ring Quantity | 54 |
| d3 Fixing screws (Outer ring) [inch] | 0.709 |
| Fixing holes Outer ring Quantity | 60 |
| n Pitch quantity | 60 |
| t Pitch separation angle [°] | 6 |
| G Threaded extraction hole | M16 |
| Threaded extraction hole Quantity | 6 |
| MA Screw tightening torque [Nm] | 290 |
| MR Bearing friction torque [Nm] | 295 |
| Additional information |
The RTC850 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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