Saige G10 Gcr15 Chrome Bearing Steel Ball 12.7mm Precision Bearing HRC62-66

Product Description

Product Description

Chrome Steel Ball

Bearing steel balls (chromium steel balls) are key components of modern industry, made of GCr15 high carbon chromium bearing steel as raw material, corresponding to globally recognized grades such as American standard 52100 and European standard 100Cr6, with stable and reliable performance.

It has a hardness of HRC60-66, excellent toughness, can withstand high pressure of 3000MPa, extremely low friction loss rate, and a lifespan 3-5 times longer than ordinary steel balls. The accuracy covers G3-G1000 level, with a diameter tolerance of only ± 0.25 μm for G10 level, and a mirror level surface (Ra ≤ 0.01 μm), ensuring smooth operation of the equipment.

 

Widely used in core scenarios such as automotive wheels, machine tool spindles, and aviation engines, wind power equipment can bear several tons of weight per unit, and satellite organizations have a lifespan of over 15 years. Compared to ceramic balls, the cost is 70% lower, maintenance frequency is reduced by 80%, and the overall cost-effectiveness is outstanding.
 

From precision instruments to heavy-duty equipment, it has become the preferred choice for improving product quality in the industry due to its high hardness, precision, and reliability.

Specification

Content	Details	Applications
Core Material	GCr9 Chrome Bearing Steel, High-Chromium Steel (Cr≥10%), Medium-Chromium Steel (Cr 3%–7%)	GCr9: Precision Bearings, High-Speed Transmission Components;High-Chromium Steel: Large-Scale Grinding Equipment, Wear-Resistant Working Conditions;Medium-Chromium Steel: General Grinding, Medium Wear-Resistance Scenarios
Dimension Specifications	Standard: 1–80mm (including 3/5/10/20/50mm, etc.); Customized: Max. 500mm	1–20mm: Precision Bearings, Electronic Equipment; 20–80mm: Cement Mills, Mining Ball Mills;80–500mm: Large-Scale Metallurgical Mills, Heavy-Duty Grinding Equipment
Precision Grade	Grade G10 (High Precision),Grade G40 (General Purpose),Grade G100 (Economy Grade)	G10: Precision Machinery, High-Speed Bearings;G40: General Industrial Grinding, Transmission Equipment; G100: Grinding Media for Ordinary Mills, Counterweights for Heavy-Duty Machinery
Hardness Characteristics	GCr9: HRC 61–66;High-Chromium Steel: HRC≥58;Medium-Chromium Steel: HRC≥47, Excellent Wear Resistance, High Impact Toughness	Severe Working Conditions such as High-Speed Operation, Intensive Grinding & High Wear, Suitable for Medium & High-Temperature Operating Environments
Operation Performance	Low Rolling Friction Coefficient, Stable & Noiseless Operation, High Load-Bearing Capacity, Excellent Fatigue Resistance	Precision Transmission Systems, High-Speed Rotating Equipment, Continuous Operation Grinding Production Lines
Temperature Adaptability	Stable Operation at -40℃~ 300℃, High-Temperature Tempering Treatment, Complete Stress Relief	Industrial Normal Temperature Environments, Medium & High-Temperature Grinding Environments, Regular Low-Temperature Working Scenarios
Supply Service	Standard Products: Delivered within 48 Hours; Customized Products: Delivered in 7–15 Days; Customization Available for Any Specification & Special Process	Rush-Order Clients, Precision Machinery Manufacturers, Bulk Purchasers in Mining & Cement Industries
Quality Assurance	Provide Material Composition/Hardness/Precision Inspection Reports;ISO 9001 Certified;Free Replacement & Refund for Quality Issues Within Warranty Period	Industrial Clients with High Requirements for Wear Resistance & Precision, and Those Needing Certification
Value-Added Services	Free Product Selection Guidance;Sample Testing Support;1-on-1 Technical Consultation for Customization;Full Compensation for Transportation Damage	Clients with Selection Confusion, First-Time Cooperators, Clients with Customization Needs for Special Working Conditions

Main Products

Changzhou Feige Steel Ball Co., Ltd

Established in 1989, we are a professional precision steel ball manufacturer specializing in chromium steel balls, stainless steel balls, and carbon steel balls. We have obtained dual certifications from ISO 9001 and IATF 16949, ensuring authoritative quality assurance.

The company covers an area of 18000 square meters, with advanced laboratories and professional quality inspection teams, and an annual profit of 10% invested in testing equipment. We currently have over 100 employees (including 30 technical personnel), 423 sets of production and 100 sets of testing equipment, with an annual output of 1 trillion steel balls; Independently complete the entire production process, with testing reports attached for each piece and a one-year warranty commitment.

Support customized requirements for steel ball size, material, drilling, marking, electroplating, etc. Our products are widely compatible with pumps, precision bearings, automotive components, milling machines, and other equipment; For 36 years, we have exported to 68 countries and regions worldwide, relying on complete logistics routes to quickly deliver high-quality steel balls to customers.

Company Profile

Certifications

Packaging & Shipping

Feige Steel ball packaging is based on "rust prevention as the core and sealing as the foundation", customized solutions for different materials and scenarios, comprehensively solving problems of rust prevention, moisture resistance, scratch resistance, and collision prevention.

Before packaging, the carbon steel balls are cleaned and cleaned with ultrasonic technology, dried with hot air (moisture content ≤ 0.05%), coated with anti rust oil, and precision steel balls undergo special anti rust treatment. The core protection adopts "gas-phase rust prevention+multiple sealing": carbon steel balls are wrapped in gas-phase rust prevention paper, and desiccants are added in high humidity environments; The precision steel ball is fixed with a groove partition box, which provides more precise anti scratch protection.

Buffer is adapted according to size, using 5mm pearl cotton for sizes below 50mm, large-sized steel balls with rubber buffer pads, and five layer corrugated boxes or thickened iron drums for outer packaging. The protection period for ordinary carbon steel balls is 6-12 months, while for G10 grade precision steel balls it is 18-24 months.

Each batch undergoes salt spray and drop testing, with clear warning labels on the packaging to ensure the quality of the steel balls remains as good as new after transportation and storage.

FAQ

1. Product related
Q: What are the materials?
A: Bearing steel (GCr15), stainless steel (304/316/440C), carbon steel, Iron ball, copper ball, aluminum ball, glass ball, ceramic ball, plastic ball etc., can be customized.

Q: Accuracy level?
A: ISO 9001:2015 standard, G5 (maximum) to G2000 (industrial grade), recommended as needed.

Q: Hardness range?
A: HRC 58-66 (depending on the material), can undergo special heat treatment.

2. Production and customization
Q: Minimum order quantity?
A: Standard products start from 1 box, customized products can be produced in small batches for trial production.

Q: Do you support non-standard or surface treatment?
A: Support! Diameter 0.3-50mm, can be polished, chrome plated, coated, etc.

Q: Production cycle?
A: Standard products take 3-7 days, customized products take 10-15 days.

3. Quality and Testing
Q: How to ensure quality?
A: Fully automated production, with each batch tested for roundness, hardness, roughness, etc., accompanied by third-party reports.

Q: Application scenarios?
A: Bearings, automotive components, precision instruments, valves, hardware, grinding, etc.

4. Logistics and after-sales service
Q: Transportation method?
A: Express/sea/air/land transportation, freight charges are calculated based on actual costs, and assistance is provided for customs clearance.

Q: How to deal with quality issues?
A: 12-month warranty, free return or compensation upon presentation of testing certificate.

5. Other
Q: Do you provide samples?
A: Free standard samples (cash on delivery), customized samples incur cost fees.

Q: Is there an environmental certification?
A: The material complies with RoHS/REACH, and certification can be provided upon placing an order.