Yes. We offer free samples to qualified distributors and brand owners. There is no small-order surcharge or sample fee -- you only cover the freight cost from our facility in Jinan, Shandong.

This policy applies to standard bearings and most OEM catalogue items. Custom-spec samples may require a nominal tooling deposit, which is fully credited toward your first production order.

Standard samples are dispatched within 3-5 business days after we confirm your shipping details. Delivery time to your location depends on the carrier and destination country.

Every sample shipment includes a material inspection report, dimensional test certificate, and product specification sheet. Upon request, we can also provide ISO 9001:2015 certification copies and third-party QC reports.

Standard bearings support a 1-piece MOQ. We understand that distributors often need to test multiple SKUs before committing to large volumes, so we've removed traditional bulk-only barriers.

For OEM/ODM production runs, MOQ varies by product complexity -- our sales team will provide a tailored quote based on your specification requirements.

Absolutely. Mixed-SKU orders are fully supported and encouraged for new distributors building their initial inventory. Each line item is individually packed, labeled, and quality-checked before consolidation into a single shipment.

We accept the following payment methods for your convenience:

• T/T (Bank Wire Transfer) -- standard for B2B bulk orders
• Credit Card -- available for smaller or first-time orders
• Alibaba Trade Assurance -- secure platform payment with buyer protection

Yes -- 100% genuine. We source NSK and INA bearings exclusively through verified authorized channels. Every unit carries original brand packaging, traceability codes, and can be authenticated through the respective brand's official verification system.

We provide full sourcing documentation upon request, including purchase invoices and brand authorization letters where applicable.

Our manufacturing and QC processes comply with internationally recognized standards:

We manufacture bearings across a wide performance range to suit diverse industrial applications:

• Precision Grades: P0 · P6 · P5 · P4 (ABEC 1 to ABEC 7 equivalents)
• Noise Grades: Z2 · Z3 · Z4 for low-vibration and quiet-running applications
• Material: High-grade chrome steel (GCr15) for stable performance and extended service life

We offer comprehensive OEM and ODM services covering the full production cycle:

• Private Label / Brand Engraving -- your brand name, logo, and packaging
• Dimensional Customization -- bore, OD, width, and internal geometry per drawing
• Material & Coating -- special steels, surface treatments, and seal/shield options
• Application Engineering -- R&D support for specific working conditions

Lead times depend on order type and volume. Here is a general reference:

All products carry a 12-month after-sales warranty. Our technical team provides:

• Failure analysis and root-cause investigation reports
• Professional technical guidance on installation and application
• Replacement or refund processing for verified quality defects
• Ongoing price and supply stability for long-term distribution partners