When sourcing industrial components like the LMH20UU oval flanged linear bearing, procurement efficiency and risk mitigation are critical for global buyers. At Zhejiang Siqiang Bearing (SQ), we back our factory-direct inventory with a transparent Return Merchandise Authorization (RMA) framework and quality guarantees.
Whether you are a distributor carrying volume inventory or an OEM integrating our 20mm bore flanged bearings into automated machinery, here is the official policy regarding returns, exchanges, and quality assurances for our in-stock LMH20UU bearings.

1. Quality Guarantee & Defective Return Policy (RMA)
Every batch of SQ LMH20UU bearings undergoes strict internal quality control, ensuring standard dimensional tolerances (20mm inner diameter, 32mm outer diameter, 42mm length) and material hardness (HRC58-64 for standard bearing steel).
In the rare event that products exhibit manufacturing defects, material non-conformity, or shipping damage, the following terms apply:
Notification Window: Claims for manufacturing defects or transport damage must be submitted within 15 business days upon cargo arrival at your destination port or facility.
Evidence Collection: Buyers should provide an inspection report, high-resolution photographs, or video evidence demonstrating the issue (e.g., dimensional deviation, seal failure, or surface pitting).
Resolution Protocol: Upon technical verification by the SQ quality engineering team, we will provide a full refund for the affected units or dispatch 100% free replacements via expedited air freight. For verified quality non-conformity, SQ assumes all return shipping liabilities.
2. Standard Returns for Non-Defective Stock Items
If you ordered the LMH20UU but realize your design parameters require an alternative style-such as the square flange LMK20UU or the longer LMEF20LUU-we accept commercial returns under the following conditions:
Timeframe: Return requests must be initiated within 30 calendar days from the original invoice date.
Product Condition: Bearings must be completely unused, unaltered, free of rust or secondary contamination, and preserved in their original SQ factory packaging.
Restocking Fee: A standard 15% restocking fee applies to all non-defective returns to cover automated re-testing, cleaning, and repackaging protocols.
Logistics Charges: Shipping fees for non-defective commercial returns, including customs clearance duties, are the sole responsibility of the buyer.
Quick Comparison: Return & Exchange Matrix
| Return Category | Time Window | Restocking Fee | Shipping Liability | Acceptable Product Condition |
| Manufacturing Defect / Damage | 15 Days | 0% (Full Refund/Replace) | Covered by SQ | As received, with supporting QC data |
| Incorrect Model Selection (Buyer Error) | 30 Days | 15% Restocking Fee | Covered by Buyer | 100% Unused, original factory packaging |
| Customized Production Batches | Non-Returnable | N/A | N/A | Only covered under warranty repair/replace |

3. Step-by-Step Guide to Initiating an RMA
To process your request efficiently, your purchasing department should follow our standardized B2B workflow:
Submit Request: Email your dedicated account manager or contact our service department with your Proforma Invoice (PI) number or Purchase Order (PO) number.
RMA Issuance: Our logistics team will issue a formal RMA form containing a unique tracking code and specific return-warehouse destination instructions within 48 hours.
Secure Packaging: Package the linear bearings securely to prevent transit rust or impact shock. Clearly mark the RMA code on the exterior box.
Processing & Credit: Once received at our 19,800-square-meter manufacturing facility, components undergo automated metrology testing. Approved refunds or account credits are processed within 5 to 7 business days.
Technical Support and Cross-Model Alternatives
To eliminate ordering errors before shipment, we highly recommend consulting our engineering department for technical verification. If the LMH20UU oval flange profile does not fit your mounting spatial constraints, we can immediately swap your in-stock order for compatible configurations prior to dispatch:
LMK20UU: Square flange variant for standard 4-bolt orthogonal installations.
LMF20LUU (Nickel Plated): Round flange, extended body layout featuring advanced corrosion resistance for high-humidity or wash-down environments.
LMKP20UU: Pilot flange profile designed for specialized deep-seated recess mountings.
Partner with SQ for Risk-Free Component Sourcing
Zhejiang Siqiang Bearing (SQ) focuses on engineering transparency and robust supply chain security. By maintaining large domestic stocks of metric and imperial linear bushings, we guarantee prompt lead times along with clear commercial protections.
Do you need to review technical drawings, request material test certificates, or finalize a wholesale quote for the LMH20UU? Contact our global B2B sales desk today for professional support.