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Precision Engineering for Global Industry

High-performance Bearings & Precision Measuring Tools | OEM Services | CE & CNAS Certified | Made in China

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Precision Tools

About RUUKAR

YIWU RUUKAR INDUSTRIAL CO., LTD. is a leading manufacturer and supplier of high-precision industrial components, specializing in bearings and measuring tools for global markets.

Our gauges have passed the international certification of CNAS with the logo of China Aerospace — the most professional gauge testing organization in China, jointly certified with China Aerospace Industry Group. We are proud partners with China Oilfield Services Co., Ltd. and provide OEM services for several Japanese brands.

As an authorized agent of Harbin Measuring & Bearing Group Co., Ltd. — the largest and most professional measuring and cutting tool manufacturer in China — we ensure access to cutting-edge technology and production standards.

CE & CNAS Certified | OEM Services | Global Shipping

Our Products

Precision-engineered industrial components meeting American, British, German, Russian, and Chinese standards. Custom specifications and OEM branding available.

Gauge Block

Gauge Block

  • Grades: K, 0, 1, 2, 3
  • Materials: Chrome Steel GCr15, Carbide, Ceramic
  • Standards: ISO, ANSI, DIN, GOST
  • High precision & wear resistance
Plug Gauge

Plug Gauge

  • Tolerance: ±0.001mm
  • Types: Threaded / Plain
  • Material: Chrome Steel GCr15, Carbide
  • Smooth surface finish
Needle Roller Bearing

Needle Roller Bearing

  • High load capacity, compact design
  • Materials: Stainless Steel, Chrome Steel GCr15
  • Used in automotive & industrial gearboxes
  • Quality guaranteed
Pillow Block Bearing

Pillow Block Bearing

  • Self-aligning, easy installation
  • Materials: Stainless Steel, Chrome Steel GCr15
  • Ideal for conveyor systems
  • Dust and moisture resistant
Ring Gauge

Ring Gauge

  • Used for shaft diameter inspection
  • Precision ±0.001mm
  • Chrome Steel GCr15
  • Calibration certificate available
Thread Gauge

Thread Gauge

  • Thread pitch & profile verification
  • Standards: ISO, UNC, UNF, BSPT
  • Chrome Steel GCr15
  • Custom thread forms available
Milling Cutter

Milling Cutter

  • High-speed steel & carbide options
  • For CNC & manual machining
  • Custom geometries available
  • Long tool life & precision
Drill Bit

Precision Drill Bit

  • Carbide & HSS materials
  • Diameter range: 0.1mm – 20mm
  • High concentricity
  • For hardened steel & aerospace alloys

Why Choose RUUKAR?

Trusted by global partners for reliability, precision, and responsive service.

Certified Quality

CNAS & CE certified. Jointly tested with China Aerospace. Guaranteed precision and durability.

OEM & Customization

Custom drawings, branding, and tool design. Tailored solutions for your production needs.

Global Shipping

Sea, rail, air, and express options. UPS, FedEx, Alibaba logistics. Fast and secure delivery.

Reliable Support

Timely replies, detailed answers, careful packaging. Long-term partnership focus.

37+
Precision Tool SKUs
37+
Bearing Types
50+
Global Markets
15+
Years Experience

Frequently Asked Questions

Are your products CE and CNAS certified?

Yes. Our gauges are CNAS certified with China Aerospace standards, and our products meet CE requirements for international compliance.

Do you offer OEM or custom branding?

Yes. We provide full OEM services and custom branding for bearings and precision tools. Custom drawings are also supported.

What materials do you use?

We use Chrome Steel GCr15, Carbide Steel, Ceramic, and Stainless Steel depending on application and durability needs.

What are your shipping options?

We offer sea freight, rail freight, air freight, and express services including UPS and FedEx for fast delivery.

What is your return policy?

We offer refunds or exchanges if products fail quality tests or have manufacturing defects. All items are carefully inspected before shipping.

Get in Touch

Have questions or need a quote? We respond promptly to all inquiries.

[email protected]
+86 564 5127 312 ext. 101
Unit 1-401, LuXueyuan, Xihu District, Hangzhou 310030, Zhejiang, China
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