Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesPlain (no gear)PSL 90-1B20-0944-0919Kaydon RK6-37P1ZRotek L6-37P9Z

21P.0944.19.000 Slewing Ring Bearing

21 Series slewing ring bearing, plain (no gear), 1,048 mm OD × 834 mm ID. Interchangeable with PSL 90-1B20-0944-0919, Kaydon RK6-37P1Z, Rotek L6-37P9Z.

Specifications

SlewPro part number21P.0944.19.000
Series21 Series
Bearing designFour-point contact, single-row ball
GearPlain (no gear)
Raceway diameter944 mm (37.17 in)
Outside diameter1,048 mm (41.26 in)
Inside diameter833.9 mm (32.83 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 bore945.4 mm (37.22 in)
Inner ring outside diameter942.6 mm (37.11 in)
All diameters on drawing41.26 in (1048.0 mm), 38.70 in (983.0 mm), 37.22 in (945.4 mm), 37.17 in (944.1 mm), 37.11 in (942.6 mm), 35.63 in (905.0 mm), 32.83 in (833.9 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
MaterialSteel, 50Mn
Approx. weight126 lb (57 kg)

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

Crosses to

KaydonRK6-37P1Z
PSL90-1B20-0944-0919
RotekL6-37P9Z

Interchange based on published dimensions; our engineers confirm fit before quoting.

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.

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