Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesPlain (no gear)Rothe Erde 230.20.0500.013

21P.0544.20.002 Slewing Ring Bearing

21 Series slewing ring bearing, plain (no gear), 648 mm OD × 434 mm ID. Interchangeable with Rothe Erde 230.20.0500.013.

Specifications

SlewPro part number21P.0544.20.002
Series21 Series
Bearing designFour-point contact, single-row ball
GearPlain (no gear)
Raceway diameter544 mm (21.42 in)
Outside diameter648 mm (25.51 in)
Inside diameter434.1 mm (17.09 in)
Overall height55.9 mm (2.20 in)
Outer ring height45.5 mm (1.79 in)
Inner ring height45.5 mm (1.79 in)
Outer ring bore545.6 mm (21.48 in)
Inner ring outside diameter542.5 mm (21.36 in)
All diameters on drawing25.51 in (648.0 mm), 22.95 in (582.9 mm), 21.48 in (545.6 mm), 21.36 in (542.5 mm), 19.88 in (505.0 mm), 17.09 in (434.1 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm), 0.41 in (10.4 mm)
MaterialSteel, 50Mn
Approx. weight71.0 lb (32 kg)

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

Crosses to

Rothe Erde230.20.0500.013

Interchange based on published dimensions; our engineers confirm fit before quoting.

21 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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