About Ruima
About Ruima
10+ years in coated bearings, plastic-coated bearings and bearing type manufacturing
Company Overview
Who We Are
Ruima is a professional bearing manufacturing factory based in China, with over 10 years of specialized R&D and production experience in rubber coated bearings, plastic coated bearings and industrial pulley wheels. We are ISO 9001 certified, with a monthly production capacity exceeding 5,000,000 units, exporting to more than 30 countries worldwide.
We work from your drawings, samples or key dimensions — from material selection and tooling design through sample verification to batch delivery — maintaining dimensional consistency and appearance quality. We offer neutral packaging, custom labeling, and full export documentation support.
Why Ruima
Why Choose Us
Focused Expertise
We specialize in three product categories — more stable processes, faster response.
Flexible Customization
Different OD, ID, width, material, color, hardness combos. Small batches welcome.
Samples First
Pre-production samples for your approval before bulk orders.
Export Support
Neutral packaging, custom labeling, packing lists — smooth trade collaboration.
Production Process
How We Work
Requirements
You send drawings, samples or dimensions
Tooling & Material
We prepare tooling and select materials
Sampling
Samples produced for your testing
Production
Samples approved, mass production begins
Delivery
Packed and shipped per agreed schedule
Target Markets
Industries We Serve
Factory Tour
Factory Walkthrough
Virtual Factory Tour
See our production lines, testing equipment and warehouse — no need to visit in person.
Quality Certification
Quality Assurance
ISO 9001:2015
Certified quality management system covering product design, production, inspection and delivery.
Incoming QC
All raw materials and bearing components inspected for dimensions, hardness and appearance before use.
In-Process QC
Inspection points at key production stages with online monitoring of coating thickness and concentricity.
Outgoing QC
AQL sampling inspection on every batch. Dimensions, appearance and packaging verified before shipment.
Start a Conversation
Send us your drawings, sample photos or dimension requirements. Quote and solution within one business day.
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