Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
30 SeriesExternal gear

30E.0387.20.000 Slewing Ring Bearing

30 Series slewing ring bearing, external gear, 483 mm OD × 313 mm ID.

Specifications

SlewPro part number30E.0387.20.000
Series30 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter387 mm (15.24 in)
Outside diameter482.6 mm (19.00 in)
Inside diameter312.9 mm (12.32 in)
Overall height47 mm (1.85 in)
Outer ring height44.4 mm (1.75 in)
Inner ring height44.4 mm (1.75 in)
Outer ring bore385.8 mm (15.19 in)
Inner ring outside diameter388.9 mm (15.31 in)
All diameters on drawing19.00 in (482.6 mm), 16.41 in (416.8 mm), 15.31 in (388.9 mm), 15.19 in (385.8 mm), 14.09 in (357.9 mm), 12.32 in (312.9 mm)
All heights on drawing1.85 in (47.0 mm), 1.75 in (44.4 mm)
Diametral pitch4
Number of teeth74
Pitch diameter18.5 in
Pressure angle20°
MaterialSteel, 42CrMo
Approx. weight68.5 lb (31 kg)

Dimensions from our 3D model; confirm against the certified drawing. Load ratings and life calculations available from our engineers.

30 Series slewing ring

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Standard lead time 14–16 weeks; expediting available for an additional charge. Pricing quoted within 1–2 business days. Matching pinions available.

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