Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
30 SeriesPlain (no gear)Kaydon MTO-415SilverThin STO-415

30P.0508.25.002 Slewing Ring Bearing

30 Series slewing ring bearing, plain (no gear), 626 mm OD × 413 mm ID. Interchangeable with Kaydon MTO-415, SilverThin STO-415.

Specifications

SlewPro part number30P.0508.25.002
Series30 Series
Bearing designFour-point contact, single-row ball
GearPlain (no gear)
Raceway diameter508 mm (20.00 in)
Outside diameter626.1 mm (24.65 in)
Inside diameter412.8 mm (16.25 in)
Overall height60.3 mm (2.37 in)
Outer ring bolt circle22.25 in, 16 × 5/8-11 UNC
Inner ring bolt circle17.75 in, 20 × 0.813
GearSD, 20°, 2.5 DP, 103 teeth, 41.2 in pitch diameter
Max. gear tooth load21,290 lb
Static axial capacity398,469 lb
Static radial capacity126,163 lb
Static moment capacity139,227 ft-lb
Approx. weight145 lb (66 kg)

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

Crosses to

KaydonMTO-415
SilverThinSTO-415

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

30 Series slewing ring

CAD & documents

CAD available on requestRequest CAD files→

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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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.