Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesExternal gearRothe Erde 231.20.0800.013

21E.0844.20.000 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 950 mm OD × 734 mm ID. Interchangeable with Rothe Erde 231.20.0800.013.

Specifications

SlewPro part number21E.0844.20.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter844 mm (33.23 in)
Outside diameter950.5 mm (37.42 in)
Inside diameter734.1 mm (28.90 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 bore845.6 mm (33.29 in)
Inner ring outside diameter842.5 mm (33.17 in)
All diameters on drawing37.42 in (950.5 mm), 33.29 in (845.6 mm), 33.17 in (842.5 mm), 31.69 in (804.9 mm), 28.90 in (734.1 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.45 in (11.4 mm), 0.41 in (10.4 mm)
Gear module8
Number of teeth117
Pitch diameter36.85 mm
Pressure angle20°
Approx. weight149 lb (68 kg)

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

Crosses to

Rothe Erde231.20.0800.013

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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