Pins, Shafts & Bearing Accessories

Slewing bearing accessories and spacer rings for heavy equipment RFQs.

SinoField Machinery supports RFQs for slewing bearing accessories, spacer rings, bearing rings, sleeves, bushings, and drawing-based components used in excavator swing systems, crane rotation systems, rotary platforms, and drilling equipment.

Pins, Shafts & Bearing Accessoriesslewing bearing accessories supplierexcavator swing bearing spacer ringcustom bearing ring machining

RFQ this part with

  • Slewing bearing model, machine model, or old part number
  • Drawing, sample photo, worn part photo, or dimension sheet
  • Inner diameter, outer diameter, width, hole pattern, and fit tolerance
  • Material grade, heat treatment, hardness, and surface finish requirement

Product boundary

When this page is the right route.

This page targets buyers searching for slewing bearing accessories, excavator swing bearing spacer rings, custom bearing rings, or drawing-based bearing repair parts for heavy equipment maintenance.

Applications
Excavator swing system repair, Crane rotation system maintenance, Heavy equipment bearing replacement
Compatible equipment
Excavators, Cranes, Rotary platforms, Drilling rigs
Material options
Bearing steel, 42CrMo, 40Cr, Bronze, Customer grade on drawing
MOQ / lead time
Project based by size and drawing · 25-45 days after bearing model, drawing, or sample confirmation
Third-party inspection
Buyer-arranged, buyer-nominated, or SinoField-coordinated inspection can be included when required. Fees, timing, scope, and report format are confirmed and covered by the buyer.

Failure modes and control points

Convert specs into buyer risk.

Wrong fit or grade

Slewing bearing accessory quotes depend on fit dimensions, hole positions, material, tolerance, heat treatment, and machining route.

Wrong process route

A spacer ring or bearing ring should be reviewed from drawings or measured samples because similar machine models may use different fit details.

Wrong quote scope

When the item is not a standard bearing, treat the inquiry as a custom machined bearing accessory RFQ.

RFQ checklist

  • Slewing bearing model, machine model, or old part number
  • Drawing, sample photo, worn part photo, or dimension sheet
  • Inner diameter, outer diameter, width, hole pattern, and fit tolerance
  • Material grade, heat treatment, hardness, and surface finish requirement
  • Application position such as excavator swing, crane rotation, or platform bearing
  • Quantity, sample approval need, destination port, and packing requirement

Material and fit notes

Slewing bearing accessory quotes depend on fit dimensions, hole positions, material, tolerance, heat treatment, and machining route.

A spacer ring or bearing ring should be reviewed from drawings or measured samples because similar machine models may use different fit details.

When the item is not a standard bearing, treat the inquiry as a custom machined bearing accessory RFQ.

Inspection points

  • Inner and outer diameter measurement
  • Hole pattern, pitch circle, groove, and step dimension check
  • Material and hardness checkpoints where required
  • Flatness, surface finish, burr, and fit face review
  • Part mark, drawing revision, and export packing confirmation

Third-party inspection

Third-party inspection is available when required for standard products or custom production orders. Buyers may arrange the inspector directly, nominate a specific inspection agency, or ask us to coordinate with a suitable provider.

Inspection fees, re-inspection fees, report charges, timing, and inspection scope are confirmed and covered by the buyer before order or shipment.

Buyer questions

Practical answers before sending an RFQ.

Can slewing bearing accessories be quoted from a machine model?

The machine model helps, but dimensions, bearing model, drawings, or sample photos are needed before a reliable quotation.

Are spacer rings standard catalog parts?

Some can be matched by model, but many spacer rings and bearing accessories require drawing-based or sample-based review.

What information matters most for slewing bearing repair parts?

Fit dimensions, hole pattern, material, tolerance, application position, and quantity usually matter more than the product name.

Quote review

Send model, drawing, material, quantity, and destination details.

Final price, samples, lead time, payment terms, and compliance details are confirmed manually after factory review.

Start Pins, Shafts & Bearing Accessories RFQ