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

21E.0281.15.000 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 364 mm OD × 171 mm ID.

Specifications

SlewPro part number21E.0281.15.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter281 mm (11.06 in)
Outside diameter363.7 mm (14.32 in)
Inside diameter171.4 mm (6.75 in)
Overall height44.4 mm (1.75 in)
Outer ring height38.1 mm (1.50 in)
Outer ring bore285.5 mm (11.24 in)
Inner ring outside diameter282.4 mm (11.12 in)
All diameters on drawing14.32 in (363.7 mm), 11.24 in (285.5 mm), 11.12 in (282.4 mm), 9.64 in (244.9 mm), 6.75 in (171.4 mm)
All heights on drawing1.75 in (44.4 mm), 1.50 in (38.1 mm), 0.47 in (11.9 mm)
Diametral pitch5
Number of teeth70
Pitch diameter14.4 in
Pressure angle20°
MaterialSteel, 50 Mn
Approx. weight37.5 lb (17 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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