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

21E.0844.19.003 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 944 mm OD × 734 mm ID.

Specifications

SlewPro part number21E.0844.19.003
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter844 mm (33.23 in)
Outside diameter944.1 mm (37.17 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 bore843 mm (33.19 in)
Inner ring outside diameter845.1 mm (33.27 in)
All diameters on drawing37.17 in (944.1 mm), 33.27 in (845.1 mm), 33.19 in (843.0 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), 0.47 in (11.9 mm)
Gear module2
Number of teeth470
Pitch diameter37.008 mm
Pressure angle20°
Approx. weight158 lb (72 kg)

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

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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