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MERYDOM PRODUCT

Single Row Ball Internal Gear Slewing Bearing

Internal gear structure for protected transmission and compact design.

Single Row Ball Slewing BearingsSingle-row ballInternal Gear50Mn / 42CrMo

Product Overview

Internal gear slewing bearings are used when the equipment layout needs an inward gear drive, better external protection, or compact assembly space. MERYDOM can manufacture according to OEM drawings and application requirements.

StructureSingle-row ball
Gear typeInternal Gear
Material50Mn / 42CrMo
Outer diameter rangeOD 300–2500 mm by drawing
Precision / toleranceProject-specific gear and mounting tolerance by drawing review
Heat treatmentRaceway induction hardening; internal gear hardening available
Surface treatmentAnti-rust oil, zinc plating, painting, or project-specific coating
Lead time30–50 days depending on gear process and quantity
Drawing requirementsDrawing with internal gear parameters, hole pattern, height, seals, and required documentation
Gear positionInternal gear
Rolling elementSteel balls
Drive layoutProtected inward drive
Manufacturing routeForging, turning, drilling, heat treatment, gear processing, assembly

Technical Features

  • Compact external envelope
  • Protected gear drive layout
  • Suitable for OEM replacement and new machine design
  • Custom seals, grease, marking and packing options

Typical Applications

Truck cranes, small excavators, lifting devices, industrial turntables, and compact OEM rotating units.

Quality Control Points

  • Gear dimension review
  • Raceway and gear hardness inspection
  • Mounting hole verification
  • Final inspection report by request

Engineering Notes

This product record is a structured starting point. Add project photos, drawing notes, dimensions, tolerance requirements, and customer-specific engineering notes here.

Related Products

Compare similar MERYDOM slewing bearing solutions.

Single Row Ball Slewing BearingsSingle-row ballExternal Gear50Mn / 42CrMo / 4140 by project review

Single Row Ball External Gear Slewing Bearing

External gear single-row ball structure for compact rotating equipment.

A commonly used slewing bearing structure for equipment that needs balanced load capacity, compact size, and economical manufacturing. MERYDOM supports drawing-based dimensions, gear parameters, mounting holes, and inspection documentation.

OD
OD 200–2500 mm by drawing
Lead time
25–45 days depending on drawing, quantity, and process route
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