roller bearing slewing ring suppliers

What to Verify in a Roller Slewing Ring Supplier

A useful supplier comparison connects the bearing to your actual load cases, interface, and acceptance criteria. A catalog diameter or short product name cannot establish whether two offers cover the same engineering and delivery scope.

Use these four checks when qualifying a source. SWBTEC supports each step with defined product and project information:

1. Engineering review: Tie the proposed structure and model to the combined loads, motion, mounting interface, environment, and life target. SWBTEC accepts customer drawings or technical requirements for catalog selection and custom-design review.
2. Controlled product definition: Confirm dimensions, mounting features, rotating ring, gear configuration, clearance or preload, seals, material, treatment, and accuracy on an approved drawing. SWBTEC can provide 2D drawings and 3D CAD models for design coordination.
3. Manufacturing and inspection evidence: Match critical drawing features to inspection results. SWBTEC's product inspection scope can include dimensions, ring and raceway hardness, hardening quality, clearance, runout, gear features, and operating condition, as applicable to the design.
4. Traceable delivery: Require product-level records and technical documents to identify the model and applicable production record. Custom inspection requirements and third-party testing can be agreed before the order.

Ningguo Swbtec Industry Co.,Ltd manufactures under the SWBTEC name and operates an ISO 9001 quality management system. Its roller-bearing range includes high-precision cross roller, standard cross roller, and three-row roller designs, with gearless, external-gear, and internal-gear configurations available in the listed large-diameter series.

Choose the Roller Arrangement That Matches the Duty

Roller arrangement changes how a slewing ring carries combined load, fits the available space, and controls stiffness or rotational accuracy. Compare the structures under the same load cases, life target, mounting conditions, and acceptance method.

A higher catalog load rating does not complete the selection. The bearing raceways, connection bolts, supporting structure, and gear mesh must all pass their applicable checks under the same operating cases.

Roller Slewing Ring Product Range

High-precision cross roller slewing bearing with compact ring geometry for controlled rotary motion.

Hochpräzises Kreuzrollen-Drehkranzlager

This precision line combines a compact crossed-roller arrangement with ground raceway and interface features for equipment that needs high rigidity and tightly controlled rotation. Available families include XU, XSU, RU, RB, CRB, CRBC, and CRBH series.

Core specifications

• Listed CRB/CRBC sizes cover 40–800 mm (1.57–31.50 in) inner diameters, 65–1,030 mm (2.56–40.55 in) outer diameters, and 10–150 mm (0.39–5.91 in) widths.
• The product line uses GCr15SiMn rollers and offers selected configurations with axial and radial runout specified to 0.005 mm (0.00020 in) or less.
• Caged and full-complement configurations are listed with dynamic and static load ratings; the applicable rating depends on the exact model.
• Intended applications include industrial robots, precision machine tools, medical equipment, and precision rotary systems.

Include the required runout or positioning accuracy, mounting accuracy, clearance or preload target, and available bearing envelope.

Dieses Lager anbietenView High Precision Cross Roller Bearing

Three-row roller slewing bearing for high combined loads in large rotating equipment.

Dreireihiges Rollendrehkranzlager

Three roller rows separate radial and axial load paths for large machinery exposed to high combined loads. SWBTEC lists 130, 131, 132, 133, and 134 series configurations for heavy machinery and port equipment.

Core specifications

• Listed nominal size designations run from 500 through 2500, with section series 25, 32, 40, and 45.
• Available catalog configurations include gearless, external-gear, and internal-gear versions.
• Product data cover overall and mounting dimensions, mounting holes, structural dimensions, gear data, and net weight.
• Model selection requires the simultaneous axial load, radial load, overturning moment, gear force, support stiffness, operating cycle, and target life.

Send the combined-load table, support-structure drawing, bolt arrangement, gear-force data, and transport limits.

Request a Heavy-Duty QuoteView Three Row Roller Bearing

Single-row crossed roller slewing bearing for combined axial, radial, and moment loads.

Kreuzrollen-Drehverbindung

The single-row crossed-roller design supports axial, radial, and overturning loads in one assembly. It suits industrial rotary tables, agricultural machinery, and other equipment that needs dependable combined-load support without the tighter accuracy package of the high-precision line.

Core specifications

• Listed model families include 110, 111, 112, 113, and 114 series.
• Catalog configurations include gearless, external-gear, and internal-gear versions.
• Listed nominal size designations run from 500 through 2000; product tables provide overall dimensions, mounting geometry, gear data, and weight.
• Selection should account for partial loading, shock, long-duration heavy load, support deformation, oscillation, and lubrication because these conditions influence roller contact and wear.

Describe shock or partial loading, rotation or oscillation, support deformation, and the planned lubrication method.

Dieses Lager anbietenKreuzrollen-Drehlager anzeigen

Send Complete Application Data for Bearing Selection

Start selection with operating cases in which all loads occur at the same time. For each normal, maximum, parked, test, shock, or emergency case, record axial force, radial force, overturning moment, gear tangential force or drive torque, speed or oscillation angle, and the duration or cycle count. Keep the load directions, reference point, fixed ring, and rotating ring consistent with the interface drawing.

Add the information that controls fit and service conditions:

• Required inner diameter, outer diameter, overall height, center opening, hole pattern, locating diameters, adjacent-part envelope, and removal space
• Continuous rotation, intermittent rotation, or oscillation; speed, acceleration, braking, reversal frequency, duty cycle, and design life
• Gearless, internal-gear, or external-gear arrangement; module, tooth count, pressure angle, pinion, center distance, backlash, peak torque, and lubrication
• Required axial and radial clearance or preload, runout, rotational accuracy, stiffness, friction torque, and the measurement conditions for acceptance
• Temperature, dust, water, corrosive media, cleaning method, mounting orientation, storage, seals, coating, and lubricant requirements
• Required drawings, CAD model, material records, inspection report, third-party witness points, packing, and destination requirements

For a replacement bearing, include the original part number, machine model and serial number, controlled drawings, gear data, rotating ring, operating history, and failure observations. Measurements from a worn bearing can help identify the part, but the approved replacement interface should be checked against original design data wherever available.

The buyer's final approval should reference the agreed drawing, calculations, application conditions, and verification plan.

Manufacturing and Inspection Tied to the Drawing

SWBTEC sets the production route from the approved drawing, bearing size, roller arrangement, material, gear configuration, accuracy, and heat-treatment plan.

1. Ring material and blanks: SWBTEC checks incoming forgings for appearance and dimensions. After rough turning, its process inspection uses ultrasonic testing to check for internal pores, inclusions, and laminations.
2. Machining and gear production: The production team turns ring faces, locating features, seal grooves, and raceway profiles, then machines the specified gear and mounting holes to the drawing.
3. Heat treatment and finishing: Quality staff check overall hardness after quench and temper. After raceway or gear hardening, they check the specified hardened area, hardness or depth, and cracks before final finishing controls ring geometry.
4. Assembly and lubrication: The team assembles the rings, rollers, separator or cage components, and seals to the specified clearance or preload, then checks rotation for smoothness and abnormal noise.
5. Final inspection: SWBTEC records the technical checks required by the drawing and product structure, then retains the completed inspection record with the product information.

For custom orders, define the inspection report, material or process records, and third-party witness points before production so the delivered document package matches the approved scope.

Build a Quote You Can Compare

Roller slewing ring pricing changes with the roller arrangement, diameter and section, ring material, load level, accuracy, clearance or preload, gear configuration, gear heat treatment, seals, lubricant, coating, hole pattern, quantity, inspection documents, packing, and requested lead time. Two bearings with similar outside diameters can therefore have different manufacturing routes and delivery scopes.

Ask every supplier to quote the same boundary. State whether the offer includes the bearing, pinion or other accessories, approved drawings, selection calculations, material and inspection records, third-party inspection, special packing, freight, installation guidance, and warranty terms. Record the currency, Incoterm and named place, quote validity, sample quantity, production quantity, and planned order date.

SWBTEC product information gives a typical lead time of 15–30 days for standard models. Custom lead time depends on design review, material availability, tooling, first-article work, verification requirements, quantity, and production schedule. Small trial orders are accepted by negotiation, with MOQ confirmed for the selected product type.