Detailed description

| Part Number | YRTC850-XL-QW51 |
| X-Life | XL long life design |
| Mounting | screw |
| Bearing Type | Axial/radial bearings, double direction, YRT |
| Manufacturer Part Code | YRTC850 |
| Series | YRTC |
| Alias | Super Precision Bearings for Rotary Tables |
| m Weight [kg] | 253 |
| Reference From | INA YRTC850-XL-QW51 |
| Main Dimensions | |
| d φ Inside [inch] | 33.465 |
| d tolerance [mm] | 0 -0.05 |
| D Φ Outside [inch] | 43.110 |
| D tolerance [mm] | 0 -0.063 |
| H High [inch] | 4.882 |
| H1 [inch] | 3.169 |
| H2 [inch] | 1.713 |
| C [inch] | 1.457 |
| D1 [inch] | 40.079 |
| J [inch] | 35.039 |
| J1 [inch] | 41.535 |
| Performance | |
| Cr Dynamic Radial [lbf] | 116868 |
| C0r Static Radial [lbf] | 379869 |
| Ca Dynamic Axial [lbf] | 229286 |
| C0a Static Axial [lbf] | 1910748 |
| nG Limiting speed (oil) [r/min] | 50 |
| nG Limiting speeds (Swivel type operation) [r/min] | 125 |
| 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] | 0.669 |
| Fixing holes Inner ring Quantity | 58 |
| d3 Fixing screws (Outer ring) [inch] | 0.709 |
| Fixing holes Outer ring Quantity | 54 |
| n Pitch quantity | 60 |
| t Pitch separation angle [°] | 6 |
| t1 Axial and radial runout [µm] | 12 |
| G Threaded extraction hole | M12 |
| Threaded extraction hole Quantity | 6 |
| MA Screw tightening torque [Nm] | 284 |
| MR Bearing friction torque [Nm] | 127 |
| Additional information | |
| CaL Rigidity of bearing position (axial) [kN/µm] | 26.5 |
| CrL Rigidity of bearing position (radial) [kN/µm] | 11.9 |
| CkL Rigidity of bearing position (Tilting rigidity) [kNm/mrad] | 2341 |
| CaL Rigidity of bolling element set (axial) [kN/µm] | 61.9 |
| CrL Rigidity of bolling element set (radial) [kN/µm] | 12 |
| CkL Rigidity of bolling element set (Tilting rigidity) [kNm/mrad] | 6762 |















