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

21E.1044.20.001 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 1,148 mm OD × 914 mm ID.

Specifications

SlewPro part number21E.1044.20.001
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter1,044 mm (41.10 in)
Outside diameter1,148.1 mm (45.20 in)
Inside diameter914.4 mm (36.00 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 bore1,048 mm (41.26 in)
Inner ring outside diameter1,039.9 mm (40.94 in)
All diameters on drawing45.20 in (1148.1 mm), 41.26 in (1048.0 mm), 40.94 in (1039.9 mm), 39.57 in (1005.1 mm), 36.00 in (914.4 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
Diametral pitch3
Number of teeth134
Pitch diameter44.667 in
Pressure angle20°
Approx. weight189 lb (86 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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