L6-43N9Z Bore 993.902 Mm, Single Row Ball Slewing Rings With Internal Gears (4-point Contact)
The L6-43N9Z Single-row four-point contact ball slewing bearings are widely used in rotational applications requiring the ability to withstand combined loads (axial force, radial force, and overturning moment) and demanding a compact structure and low self-weight, such as engineering machinery (truck cranes, excavators), wind power generation (yaw bearings), port machinery, photovoltaic tracking systems, robotics, and medical devices.
The L6-43N9Z bearing is a Single Row Ball Slewing Rings With Internal Gears (4-point Contact) with an inner diameter of 993.902 mm , an outer diameter of 1198.118 mm, a width of 55.88 mm. 50Mn or 42CrMo rings, chrome-alloy steel rolling mlement. Double Sealed type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
L6-43N9Z bearings ( 993.902 mm x 1198.118 mm x 55.88 mm) have the advantages of Compact structure, lightweight, small footprint, high cost-performance ratio, and are therefore widely used in the Robots, construction machinery, wind turbines, radar antennas, and various rotary worktables.
| Part Number | L6-43N9Z |
| Bearing Type | Single Row Ball Slewing Rings With Internal Gears (4-point Contact) |
| Gears type | Internal Gear |
| Grease Fittings Design | (4) 1/4-28 NF (SAE-LT) fittings |
| Units | inch |
| Seal | Double Sealed |
| Seal Material | NBR (Nitrile Butadiene Rubber) |
| Rows NO. | One |
| Outside - OD Φ [inch] | 47.17 |
| OD Tolerances [inch] | +0.14/-0.14 |
| Inside - ID φ [inch] | 39.13 |
| ID Tolerances [inch] | +0.03 |
| IO [inch] | 43.01 |
| IO Tolerances [inch] | +0.14/-0.14 |
| OI [inch] | 43.13 |
| OI Tolerances [inch] | +0.14/-0.14 |
| OE [inch] | 44.61 |
| OE Tolerances [inch] | +0.14/-0.14 |
| Overall Hight - HT [inch] | 2.2 |
| HT Tolerances [inch] | +0.02/-0.05 |
| Mounting Holes - OBC [inch] | 46.00 |
| No. Holes - OBC | 18 |
| Mounting Holes - IBC [inch] | 41.50 |
| No. Holes - IBC | 24 |
| PD [inch] | 39.67 |
| DP 20˚ Stub [inch] | 3 |
| No. Of Teeth | 119 |
| Gear hardness (BHN) | 180 |
| Max. Tangential Tooth Load [lbs] | 8120 |
| Nominal Capacity Compressive Thrust [lbs] | 152000 |
| Nominal Capacity Moment [ft-lbs] | 121000 |
| Thread depth [inch] | 0.75 |
| Min. Mounting Plate Thickness [inch] | 1-1/4 |
| Standard Pinions | P3-4.67D2, P3-5.67D2 |
| Weight [lbs] | 167 |
The L6-43N9Z Single-row four-point contact ball slewing bearings mainly consist of an inner ring, an outer ring, steel balls, spacers, and a sealing device. The raceways are peach-shaped or arc-shaped, and the steel balls form four-point contact with the inner and outer ring raceways. Gears can be integrated into the inner and outer rings.
Single-row four-point contact ball slewing bearings feature a low axial height and light weight due to their single-row structure. One bearing can simultaneously withstand axial loads, radial loads, and overturning moments. The four-point contact design provides high load-bearing capacity, good rigidity, and easy installation and maintenance.
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