SWBTEC
SWBTEC | Ningguo Swbtec Industry Co.,Ltd
slewing ring manufacturers
Ningguo Swbtec Industry Co.,Ltd manufactures slewing ring bearings across ball and roller structures, geared and gearless designs, and equipment-specific ranges. Review the production and inspection evidence, explore 11 specified products, then share your drawing and load cases for an engineering quotation.
Slewing Ring Bearing
Manufacturing scope and documented processes
SWBTEC’s product materials cover single-row ball, double-row ball, crossed-roller, and three-row roller slewing rings, including internal-gear, external-gear, and gearless versions. The documented series include QN, QW, and QU gear configurations; 130–134 three-row roller designs; and XU, CRB, CRBC, CRBH, XSU, RU, and RB precision crossed-roller families.
Its process documentation describes incoming forged-ring inspection, rough and finish machining, raceway induction hardening, gear and mounting-hole machining, assembly, and final measurements. The relevant question for a new order is whether those operations, their measurement range, and the proposed model match the approved drawing and production quantity.
Evidence to request from a slewing ring manufacturer
Qualify a manufacturer against the exact ring you intend to buy. An equipment list or generic quality statement says little about whether a particular diameter, gear, and running tolerance can be produced and measured consistently.
| Capability to check | Useful evidence | Decision it supports |
|---|---|---|
| Ring and gear geometry | Model drawing, machining range, tooth data, and inspection method. | Fit with the bolt circles, pinion, and available envelope. |
| Raceway process | Heat-treatment specification and measured hardness or hardening depth for the ordered design. | Whether the load-bearing surface meets the agreed process target. |
| Assembly control | Clearance, runout, and rotation measurements linked to the bearing. | Whether the assembled ring meets its running requirements. |
| Traceability | Part or serial identification tied to drawing revision and final report. | Whether a delivered bearing can be matched to its acceptance record. |
Agree on which records accompany the order before production. For replacement work, add the old bearing drawing, part number, and mating-machine details so the new ring is checked as an assembly interface.
Explore the specified product range
These are the 11 products supplied for this page. Each card links to its own product page; the exact dimensions, loads, and gear data belong to the selected model rather than to the product family as a whole.
High Precision Cross Roller Slewing Bearing
For rotary axes that require compact dimensions and controlled running accuracy. The product page covers precision crossed-roller series; confirm runout, preload, mounting accuracy, and load ratings against the selected model.
- Series shownXU, CRB, CRBC, CRBH, XSU, RU, RB
- Selection focusAccuracy and preload
Forest Equipment Slewing Bearing
For forestry machines and replacement programs. Use the machine model or existing part number with mounting dimensions to identify a compatible ring, then check the duty cycle and environmental protection.
- ApplicationForest equipment
- Matching inputMachine or part number
Crane Slewing Bearing
For crane slewing assemblies, including models listed on the product page. Confirm axial and radial loads, overturning moment, bolt pattern, and gear interface for every governing lift case.
- ApplicationCrane slewing
- Matching inputLoad cases and mounting interface
Excavator Slewing Bearing
For excavator swing assemblies and replacement work. Match the machine and existing ring details, then verify the mounting faces, bolt circles, gear mesh, and load case before ordering.
- ApplicationExcavator swing assembly
- Matching inputMachine and ring dimensions
Slewing Bearing With External Gear
An external gear allows a mating pinion to drive rotation outside the bearing ring. Confirm tooth data, pinion location, backlash, lubrication, and available radial space.
- Gear configurationExternal gear
- Drive interfaceExternal pinion
Double Row Ball Slewing Bearing
Two ball rows provide an alternative when a single-row design does not meet the load and envelope requirements. Review the load chart and installation support for the selected model.
- Rolling elementsDouble-row ball
- Selection focusLoad and envelope
Single Row Ball Slewing Bearing
A compact, single-row ball architecture for combined axial, radial, and overturning loads. Internal, external, and gearless versions depend on the drive layout.
- Rolling elementsSingle-row ball
- Gear optionsInternal, external, or none
Three Row Roller Slewing Bearing
Three roller rows separate major load components within the bearing. This architecture is a candidate for large, heavily loaded rotating equipment when the mounting structure is designed with it.
- Rolling elementsThree-row roller
- Selection focusHeavy combined loads
Slewing Bearing With Internal Gear
An internal gear places the tooth engagement inside the ring envelope. Check pinion access, tooth geometry, backlash, and lubrication in the assembly drawing.
- Gear configurationInternal gear
- Drive interfaceInternal pinion
Slewing Bearing Without Gear
A bearing ring without integral gear teeth for systems that drive rotation elsewhere. Confirm the selected structure and loads independently of the external drive method.
- Gear configurationNo integral gear
- Drive interfaceSeparate drive arrangement
Cross Roller Slewing Bearing
Crossed rollers support combined loads with a relatively rigid bearing arrangement. Evaluate runout, preload, mounting flatness, and application loads for the specified model.
- Rolling elementsCrossed rollers
- Selection focusRigidity and running accuracy
From load cases to an approved production drawing
Start with the full load spectrum: axial and radial forces, overturning moment, shock events, rotation speed, duty cycle, and target life. A manufacturer can compare ball and roller architectures only after these values are tied to operating conditions, rather than one isolated peak load.
Define the interface next: outer diameter, bore, height, bolt circles, mounting faces, and structural stiffness. Geared designs also need tooth geometry, pinion position, backlash, and lubrication. For a replacement, provide the machine model, old part number, and current drawing or measured ring dimensions.
Before machining, approve a controlled drawing that identifies the selected model, ring orientation, gear and hole details, clearances, and acceptance measurements. If the machine load, mating structure, or drive changes later, review the selection and drawing revision before production continues.
What a recorded inspection can show
SWBTEC’s supplied inspection example for model 010.20.280 records dimensional and running measurements alongside raceway hardness. It gives a concrete view of the type of evidence an OEM can request for an ordered bearing.
| Recorded check | Required range | Measured result |
|---|---|---|
| Axial clearance | 0.04–0.20 mm | 0.15 mm |
| Radial clearance | 0.04–0.20 mm | 0.07–0.10 mm |
| Outer raceway hardness | HRC 55–62 | HRC 56.6 |
| Inner raceway hardness | HRC 55–62 | HRC 55.1 |
Those results belong to the documented 010.20.280 item. Specify the applicable limits and reporting format for the model you order; a three-row roller or precision crossed-roller design may require different checks.
Define the production and delivery scope
A manufacturing quotation should identify the drawing revision, selected bearing and gear configuration, materials or heat treatment where specified, inspection deliverables, order quantity, and planned production lead time. Compare these terms alongside price so different suppliers are quoting the same build.
Confirm packaging, destination, delivery terms, and any one-time tooling or engineering charges before releasing the order. If a sample or first article is required, agree on its measurement plan and approval point before the remaining quantity is made.
Request a Slewing Ring Quote
Share your application, load cases, mounting dimensions, drawings, quantity, and delivery destination. Name a product above if you already have a candidate.
- Phone: +86 5634113031
- Email: [email protected]
