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

21E.0975.21.000 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 1,048 mm OD × 835 mm ID.

Specifications

SlewPro part number21E.0975.21.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter975 mm (38.39 in)
Outside diameter1,048 mm (41.26 in)
Inside diameter834.9 mm (32.87 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 bore946.9 mm (37.28 in)
Inner ring outside diameter942.6 mm (37.11 in)
All diameters on drawing41.26 in (1048.0 mm), 37.28 in (946.9 mm), 37.11 in (942.6 mm), 35.63 in (905.0 mm), 32.87 in (834.9 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
Gear module8
Number of teeth129
Pitch diameter40.63 mm
Pressure angle20°
MaterialSteel, 50Mn
Approx. weight162 lb (73 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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