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YRTM Rotary Table Bearings
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YRTSM260
YRTSM260
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| Part Number | YRTSM260 |
Brand: LILY  |
Interchangeable With: Schaeffler (INA) |
| System of Measurement | Metric |
| Bore Dia | 260 mm |
| Bore Dia Tolerance | -0.018mm to 0 |
| Outer Dia | 385 mm |
| Outer Dia Tolerance | -0.02mm to 0 |
| Height | 55 mm |
| Height Contact Face Outer Ring(H1) | 36.5 mm |
| Height Contact Face Outer Ring(H1) Tolerance | -0.07 to 0.05 mm |
| Height Contact Face Outer Ring(H2) | 18.5 mm |
| Height Shaft Washer | 13.5 mm |
| Maximum Diameter Inner Ring | 347 mm |
| Diameter Of Dimensional Scale On Shaft Locating Washer | 343.69 mm |
| Width Of Outer Ring | 18 mm |
| Dynamic Radial Load | 110000 N |
| Static Radial Load | 305000 N |
| Dynamic Axial Load | 173000 N |
| Static Axial Load | 1050000 N |
| Weight | 18.3 kg |
| Max Speed (X1000 rpm) | 0.91 |
| Pitch Circle Diameter Fixing Holes In Outer Ring | 280 mm |
| Pitch Circle Diameter Fixing Holes In Inner Ring | 365 mm |
| Fixing Holes Diameter Inner Ring | 9.3 mm |
| Number Of Fixing Holes Inner Ring | 34 |
| Counterbore Diameter Of Fixing Holes | 15 mm |
| Counterbore Depth Of Fixing Holes | 8.2 mm |
| Fixing Holes Diameter Outer Ring | 9.3 mm |
| Number Of Fixing Holes Outer Ring | 33 |
| Pitch Quantity And Separation Angle | 36 x 10° |
| Threaded Extraction Hole | M12 |
| Number of Extraction Threads | 3 |
| Screw Tightening Torque | 34 Nm |
| Number Of Retaining Screws | 2 |
| Axial and radial runout | 6 µm |
| Axial Rigidity Of Bearing Position | 5400 N/µm |
| Radial Rigidity Of Bearing Position | 1600 N/µm |
| Tilting Rigidity Of Bearing Position | 67000 Nm/mrad |
| Axial Rigidity Of Rolling Element Set | 16800 N/µm |
| Mass Moment Of Inertia For Rotating Outer Ring | 1422 kg * cm^2 |
| Radial Rigidity Of Rolling Element Set | 5800 N/µm |
| Tilting Rigidity Of Rolling Element Set | 201000 Nm/mrad |
| Mass Moment Of Inertia For Rotating Inner Ring | 2074 kg * cm^2 |
| Operating Temperature Tolerance | -30 ° to 120 °C |
The measuring head cannot be mounted between the fixing holes or the heads of the fixing screws. Two holes for fixing screws therefore remain unused in the bearing outer ring.
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