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

30E.0388.20.000 Slewing Ring Bearing

30 Series slewing ring bearing, external gear, 480 mm OD × 311 mm ID.

Specifications

SlewPro part number30E.0388.20.000
Series30 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter388 mm (15.28 in)
Outside diameter480.1 mm (18.90 in)
Inside diameter311.1 mm (12.25 in)
Overall height48 mm (1.89 in)
Outer ring height46.1 mm (1.81 in)
Inner ring height46.3 mm (1.82 in)
Outer ring bore387.1 mm (15.24 in)
Inner ring outside diameter389.1 mm (15.32 in)
All diameters on drawing18.90 in (480.1 mm), 16.02 in (406.9 mm), 15.32 in (389.1 mm), 15.24 in (387.1 mm), 14.54 in (369.3 mm), 12.25 in (311.1 mm)
All heights on drawing1.89 in (48.0 mm), 1.823 in (46.3 mm), 1.813 in (46.1 mm)
Gear module4
Number of teeth118
Pitch diameter18.583 mm
Pressure angle20°
MaterialSteel, 42CrMo
Approx. weight72.8 lb (33 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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