L6-37N9Z bearings ( 841.502 mm x 1048.004 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 | L6-37N9Z |
| 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] | 41.26 |
| OD Tolerances [inch] | +0.14/-0.14 |
| Inside - ID φ [inch] | 33.13 |
| ID Tolerances [inch] | +0.03 |
| IO [inch] | 37.11 |
| IO Tolerances [inch] | +0.14/-0.14 |
| OI [inch] | 37.22 |
| OI Tolerances [inch] | +0.14/-0.14 |
| OE [inch] | 38.70 |
| OE Tolerances [inch] | +0.14/-0.14 |
| Overall Hight - HT [inch] | 2.2 |
| HT Tolerances [inch] | +0.02/-0.05 |
| Mounting Holes - OBC [inch] | 40.13 |
| No. Holes - OBC | 18 |
| Mounting Holes - IBC [inch] | 35.50 |
| No. Holes - IBC | 20 |
| PD [inch] | 33.67 |
| DP 20˚ Stub [inch] | 3 |
| No. Of Teeth | 101 |
| Gear hardness (BHN) | 180 |
| Max. Tangential Tooth Load [lbs] | 8120 |
| Nominal Capacity Compressive Thrust [lbs] | 130000 |
| Nominal Capacity Moment [ft-lbs] | 91000 |
| Thread depth [inch] | 0.75 |
| Min. Mounting Plate Thickness [inch] | 1-1/4 |
| Standard Pinions | P3-4.67D2, P3-5.67D2 |
| Weight [lbs] | 144 |
The L6-37N9Z 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.















