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Double Row Ball Slewing Bearing

A double row ball slewing bearing supports combined axial, radial and overturning loads across heavy rotary equipment. Its mounting dimensions, bolt pattern and gear arrangement connect the ring to the machine interface. Published models and drawing based options provide a route to quotation.

Bearing Selection for Combined Loads

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Two ball rows support the rotating structure while the bearing carries axial force, radial force and overturning moment together. The load combination matters more than diameter alone. slewbearingtec positions this construction for large cranes, aerial work vehicles and other heavy rotary machinery.

Inputs That Narrow the Selection

Maximum axial and radial loads, overturning moment, duty cycle, rotational speed and the available mounting envelope distinguish a workable model from one chosen only by nominal diameter.

Mounting and Gear Interface

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The mounting structure must support the ring evenly. A stiff, flat support and a matching bolt pattern help the two ball rows share load. An external gear faces outward, an internal gear faces the bore, and a gearless ring works with a separate drive arrangement.

For a replacement, compare bore, ring height, bolt circle, hole count, tooth data and surrounding clearance against the existing drawing. A diameter match alone does not establish interchangeability.

From Model Selection to Quotation

Product List

Published examples span SW-476.25 (565 mm / 22.24 in outer diameter, 98 mm / 3.86 in height) to SW-1578.40 (1,744 mm / 68.66 in outer diameter, 156 mm / 6.14 in height). These dimensions illustrate the available model range; load ratings and fit still require a model-specific drawing and duty review.

slewbearingtec accepts custom designs from drawings or technical requirements and small trial orders. Published standard model lead time is 15–30 days. A model or drawing, load case, mounting dimensions, gear arrangement, quantity and destination establish the basis for a configured quotation.

Recommended Double Row Ball Slewing Bearing

Two rows of balls support combined axial, radial and overturning loads. Published models vary by ring diameter, height and mounting dimensions.

Production and Delivery

Published standard model lead time is 15–30 days. Quantity and configuration set the quotation.

Trial orders

Small trial orders accepted; quote per model and quantity. Standard models are made to order.

Pilot batch

Quote unit price by quantity, selected ring dimensions and gear configuration; standard model lead time 15–30 days.

Repeat supply

Repeat batches are quoted against approved drawings, inspection requirements and delivery schedule.

Standard Models Are Made to Order

Standard models: 15–30 days. Custom lead time depends on the approved drawing and production route.

Export Arrangements by Destination

Worldwide export inquiry accepted; delivery destination and Incoterms are specified in the quotation.

Order documents

Commercial invoice, packing list and available product drawings are identified with each order.

Send a Drawing for a Custom Bearing

Upload a PDF, DWG, DXF, STEP, STP, JPG or PNG file up to 10 MB.

Common Purchasing Questions

Answers about drawings, delivery and ordering.

Can I use an existing drawing for a replacement?

Yes. An existing drawing or model number, load case, mounting details and gear data allow a replacement to be checked against the machine interface.

Which drawing formats can I upload?

The inquiry form accepts PDF, DWG, DXF, STEP, STP, JPG and PNG files up to 10 MB.

What should I check before installation?

The support surface, bolt pattern, mounting orientation and gear clearance should match the approved bearing and machine drawings before installation.

How is a trial order quoted?

Small trial orders are accepted. The model or drawing, required quantity and destination determine the price and delivery quotation.

Can a custom bearing use a different gear arrangement?

Custom designs can be reviewed from drawings or technical requirements. The external gear, internal gear or gearless layout and mating drive details are part of that review.

Request a Double Row Ball Slewing Bearing Quote

  • Phone: +86 5634113031
  • Email: [email protected]
  • WhatsApp: +86-18098501069
  • Ningguo Dadao, Ningguo Economic Develope Zone, Ningguo, Xuancheng, Anhui, China

Your inquiry is submitted to slewbearingtec for quotation.