Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesExternal gearRotek L6-29E9ZKaydon RK6-29E1Z

21E.0744.19.005 Slewing Ring Bearing

21 Series slewing ring bearing, external gear, 836 mm OD × 634 mm ID. Interchangeable with Rotek L6-29E9Z, Kaydon RK6-29E1Z.

Specifications

SlewPro part number21E.0744.19.005
Series21 Series
Bearing designFour-point contact, single-row ball
GearExternal gear
Raceway diameter744 mm (29.29 in)
Outside diameter835.7 mm (32.90 in)
Inside diameter634 mm (24.96 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 bore745.5 mm (29.35 in)
Inner ring outside diameter742.4 mm (29.23 in)
All diameters on drawing32.90 in (835.7 mm), 29.35 in (745.5 mm), 29.29 in (744.0 mm), 29.23 in (742.4 mm), 27.76 in (705.1 mm), 24.96 in (634.0 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
Diametral pitch4
Number of teeth130
Pitch diameter32.5 in
Pressure angle20°
Material50 Mn
Approx. weight122 lb (56 kg)

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

Crosses to

KaydonRK6-29E1Z
RotekL6-29E9Z

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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