ZKLDF150-B bearings ( 150 mm x 240 mm x 40 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 combined milling and turning.

| Part Number | ZKLDF150-B |
| Mounting | screw |
| Bearing Type | Axial angular contact ball bearings, double direction, ZKLDF suitable for the highest speeds |
| Manufacturer Part Code | ZKLDF 150 |
| Series | ZKLDF = high tilting rigidity, low friction and low lubricant consumption |
| Seal type | Open Or Sealing shields on both sides |
| Rolling Element Type | balls |
| Rolling Element Material | GCr15 |
| Ring Material | 50Mn,42CrMo |
| Rows NO. | Two |
| Alias | Super Precision Bearings for Rotary Tables |
| m Weight [kg] | 5.6 |
| Reference From | INA ZKLDF150-B |
| Grease for relubrication | Arcanol MULTITOP |
| Main Dimensions | |
| d φ Inside [inch] | 5.905 |
| d tolerance [mm] | -0.013 to 0 |
| D Φ Outside [inch] | 9.449 |
| D tolerance [mm] | -0.015 to 0 |
| H High [inch] | 1.575 |
| H1 [inch] | 1.024 |
| D1 [inch] | 8.425 |
| D2 [inch] | 7.402 |
| D3 [inch] | 8.307 |
| J [inch] | 6.496 |
| J1 [inch] | 8.858 |
| Performance | |
| Cua Fatigue Axial [lbf] | 2803 |
| Ca Dynamic Axial [lbf] | 18165 |
| C0a Static Axial [lbf] | 85384 |
| nG Limiting speed (oil) [r/min] | 3589 |
| Operating temperature - T(min) [°C] | -30 |
| Operating temperature - T(max) [°C] | 120 |
| Mounting dimensions | |
| d1 Fixing screws (Inner ring) [inch] | 0.276 |
| d2 Fixing screws (Inner ring) [inch] | 0.433 |
| a Fixing screws (Inner ring) [inch] | 0.244 |
| Fixing holes Inner ring Quantity | 34 |
| d3 Fixing screws (Outer ring) [inch] | 0.276 |
| Fixing holes Outer ring Quantity | 33 |
| n Pitch quantity | 36 |
| t Pitch separation angle [°] | 10 |
| t1 Axial and radial runout [µm] | 3 |
| G Threaded extraction hole | M8 |
| Threaded extraction hole Quantity | 3 |
| MA Screw tightening torque [Nm] | 14 |
| MR Bearing friction torque [Nm] | 3 |
| Additional information | |
| CaL Rigidity of bearing position (axial) [kN/µm] | 1.7 |
| CrL Rigidity of bearing position (radial) [kN/µm] | 0.4 |
| CkL Rigidity of bearing position (Tilting rigidity) [kNm/mrad] | 7.8 |
| CaL Rigidity of bolling element set (axial) [kN/µm] | 2.9 |
| CrL Rigidity of bolling element set (radial) [kN/µm] | 0.4 |
| CkL Rigidity of bolling element set (Tilting rigidity) [kNm/mrad] | 12 |
The ZKLDF150-B 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.















