Professional Bearing Manufacturer · Est. 1995
The same service standard big-brand buyers expect — delivered factory-direct.
Every order is filmed before packing — bearings, markings, quantities — so you see exactly what ships.
Interactive supervision of the whole production process, with progress reported at every key step.
Full packaging confirmation with photos before dispatch — your brand printing welcome on request.
WhatsApp and email answered around the clock. Inquiry back to you within one working day.
Sealed 2RS and open types in chrome steel — the workhorse of our range, 6000 / 6200 / 6300 series in stock.
Learn moreSingle-row 70xx / 72xx series for spindles and pumps, where combined radial and axial loads meet speed.
Learn moreHigh load capacity with self-aligning performance for vibrating screens, crushers and heavy equipment.
Learn more302 / 303 / 322 series — split-cone design takes combined loads; clearance set at assembly.
Learn moreNU / NJ / NUP types separable and stiff — electric motors, gearboxes and machine-tool spindles.
Learn moreWheel hubs, clutch release and tensioner bearings for passenger cars, trucks and farm tractors.
Learn more511 / 512 series single and double direction — crane hooks, vertical shafts and slow-turning tables.
Learn moreDrawn-cup and cage assemblies where radial space is tight but load is high — gear pumps, universal joints.
Learn more12xx / 13xx series with convex outer race — shaft misalignment and deflection handled without stress.
Learn moreUC / UCP / UCF pillow blocks with set-screw locking — conveyors and agricultural machinery.
Learn moreLarge-diameter slewing rings built to drawing, CE certified (DLR-250804029C), for cranes and excavators.
Learn moreWhen your spec names a premium brand, we source genuine SKF, NSK, FAG and Timken stock alongside our own range.
Learn moreType any number — competitor suffixes (DDU, LLU, 2RSH…) are matched automatically. Can't find it? Ask us on WhatsApp.
Results show Chengli / SWTG stock designations with matching dimensions. Full data sheets on request.
Real workshop and warehouse shots — the same floor your order runs on.
Four checks that decide whether a bearing survives its rated life — all of them documented on request.
Bearing steel hardness is expressed on the Rockwell C scale; bearing rings and rollers for standard applications are typically specified in the 60–65 HRC range after heat treatment.
Metallographic rating classifies the microstructure of the hardened layer against standard rating charts; each grade corresponds to a different expected performance.
Working clearance governs how a bearing runs in its housing. Axial inspection verifies the internal clearance class against the designation.
Radial state directly affects stable operation: rotating shaft accuracy, load distribution across rolling elements, and noise levels in the finished machine.
No trading company between our workshop and your warehouse.
SWTG and Chengli bearings come straight from our own lines — you buy at works price.
Every process step is checked in-house, from steel bar to packed box.
Automatic assembly and packing lines keep quality consistent and unit costs down at volume.
Your brand on the box, your marking on the ring — wholesale programs for distributors.
The standard route every bearing takes through our workshop.
Bearing steel (GCr15 / 100Cr6) bar with mill certificates; hardness and composition checked before entering production.
Pressure forming of ring blanks — the step that sets geometry accuracy and the metal flow that later carries the load.
Rings turned on precision lathes with anti-ovality tooling to hold raceway geometry for the grinding stage.
Quench and temper to specified hardness range with structure checked against metallographic rating standards.
Raceways and faces ground on precision machines to final dimension, roundness and surface finish.
Cages, balls and rollers fitted — automatic assembly for standard series, manual lines for special and small-batch work.
Hardness, clearance, noise and appearance checks; sample reports per batch available to the customer.
Washed, rust-proofed, sealed and boxed — with a full photo/video record of your goods before dispatch.
Application of bearings in different equipment — matched series, seals and clearance classes for each environment.
Your satisfaction is our goal — we work hard so you are 100% satisfied.
Process quotation within 1 working day of receiving your inquiry.
We respond to your message within minutes during working hours, 24h on WhatsApp.
Always follow production dynamics and report progress to you at any time.
Quality confirmed with you one by one through product photos and videos.
Strict control of lead time — 24-hour dispatch for in-stock models.
Always follow the shipment and report any update to you in a timely manner.
Any product issue dealt with in the shortest possible time.
Professional technical team assists with selection and custom development.
Documents available on request for the relevant product families.
Conformity documentation for large slewing rings supplied to EU buyers.
Restriction of hazardous substances for designated bearing series.
Test documentation for sealed deep groove ball bearing series.
Certification covering the deep groove ball bearing range.
Documentation for our chain product line.
We keep our WhatsApp status and channel updated with production, packing, testing and dispatch photos — the everyday reality of the workshop. Add us and see it before you order.
Manufacturer direct · OEM welcome · Video inspection on every order.
