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

21E.1321.20.000 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 1,436 mm OD × 1,194 mm ID.

Specifications

SlewPro part number21E.1321.20.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter1,321 mm (52.01 in)
Outside diameter1,435.9 mm (56.53 in)
Inside diameter1,193.8 mm (47.00 in)
Overall height62 mm (2.44 in)
Outer ring height52.1 mm (2.05 in)
Outer ring bore1,319.5 mm (51.95 in)
Inner ring outside diameter1,322.8 mm (52.08 in)
All diameters on drawing56.53 in (1435.9 mm), 52.16 in (1324.9 mm), 52.08 in (1322.8 mm), 51.95 in (1319.5 mm), 51.87 in (1317.5 mm), 50.00 in (1270.0 mm), 47.00 in (1193.8 mm)
All heights on drawing2.44 in (62.0 mm), 2.05 in (52.1 mm), 0.59 in (15.0 mm)
Diametral pitch3
Number of teeth168
Pitch diameter56 in
Pressure angle20°
MaterialSteel, 50Mn
Approx. weight316 lb (143 kg)

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

21 Series slewing ring

Get this bearing

Standard lead time 14–16 weeks; expediting available for an additional charge. Pricing quoted within 1–2 business days. Matching pinions available.

Request a Quote

Talk to an engineer

Need help selecting the right part? Our engineers will size it, cross it, and quote it — usually within 1–2 business days.

Not in the catalog? We design to your application, with no engineering charge.