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VSA250855-N
BWK
BWK-VSA250855-N
VSA250855-N is a external gear four point contact slewing bearing with a 29.724 in bore, 39.252 in outside diameter and 3.15 in overall assembly height. A bolted mounting arrangement and external ring gear provide the interfaces for a driven rotating assembly. Selection must consider combined loads and mounting stiffness.
| Model | VSA250855-N |
| Product Type | External Gear Four Point Contact Slewing Bearing |
| Structure | Standard-section four-point contact ball arrangement with external gear |
| Dimension Units | Inch (dimensions shown) |
| Series | VS Series |
| Gear | External Gear |
| Type | Ball |
| Bearing Type | Standard |
| Inside Diameter Of Inner Ring | 29.724 in |
| Outside Diameter Of Outer Ring | 39.252 in |
| Height Of Overall Bearing Assembly | 3.15 in |
| External Diameter On Inner Ring | 33.74 in |
| Height Of Inner Ring | 2.795 in |
| Height Of Outer Ring | 2.126 in |
| Bolt Circle In Inner Ring | 31.299 in |
| Bolt Circle In Outer Ring | 36.063 in |
| Size Holes In Inner Ring | 0.866 in |
| Size Holes In Outer Ring | M20 |
| Number Holes In Inner Ring | 28 |
| Number Holes In Outer Ring | 28 |
| Gear Module | 9 mm |
| Pitch Diameter Of Gear | 38.622 in |
| Permissible Tooth Forces T | 12397.5 lbs |
| Basic Dynamic Load Rating(Ca) | 79875 lbf |
| Number Of Gear Teeth | 109 |
| Basic Dynamic Load Rating(Cr) | 72000 lbf |
| Basic Static Load Rating(C0r) | 315000 lbf |
| Max Gear Tooth Load Fz | 18045 lbs |
| Basic Static Load Rating(C0a) | 686250 lbf |
| Ring Material Options | 42CrMo or 50Mn or 440C; confirm supplied grade when ordering |
| Ball Material | Chrome Steel |
| Cage Material | Nylon or 300 Series Stainless Steel |
| Seal Material | NBR |
| RoHS | Compliant |
| Weight | 145 kg |
Industrial rotary tables, lifting platforms and positioning equipment.
Assess axial load, radial load and overturning moment together with speed, duty cycle and mounting stiffness. Confirm the bolt circles, hole sizes, material grade, seal configuration and lubrication requirements before ordering. Use flat, adequately stiff mounting surfaces and the specified bolt-tightening procedure. Match the gear module or diametral pitch, tooth count and gear face width to the pinion, and check the permissible tooth load.
BWK provides reliable bearing solutions for industrial and agricultural applications, supported by stable supply, strict quality control and flexible OEM & ODM services.
