Metric/English Gcr15 chromium steel balls are used for bearing bicycle and automobile parts.

• Customized: Non-Customized
• Certification: ISO
• Standard Parts: Yes
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: Inch or Metric
• Universal: Yes
• Type: Bearing Ball
• Material: Chrome Steel
• Precision Level: G10 G16 G25 G40 G60 G100 G200 G500 G1000
• Market: Factory/Trader/Whole Saler/Dealer/End User
• Transport Package: Industrial Packing
• Specification: Inch and metric are avaliable
• Trademark: GIL or OEM
• Origin: China
• Production Capacity: 10 Billion
• Package Size: 20.00cm * 30.00cm * 40.00cm
• Package Gross Weight: 21.000kg

Product Description

PRODUCT DISPLAY
 

Features: high hardness, wear resistance, smooth surface, good roundness, not easy to rust.
Applications: Widely used in high-speed bottom noise bearings, motors, hardware, wrought iron, machinery parts, bicycles, motorcycles, automobiles, precision instruments, medical equipment, fishing gear, toys, rails, universal ball, luggage, electronics industry, also Can be used as a grinding media. 
Commonly used in precision equipment such as ball screw, slider guide, linear bearing.

PRECISION LEVEL

The precision level of steel balls is typically measured in terms of their dimensional accuracy and surface finish. The international standard used to specify the precision level of steel balls is ISO 3290.

ISO 3290 provides a classification system for steel balls based on their dimensional tolerances. The standard defines several grades, ranging from G10 to G1000, with G10 being the highest precision level. The G10 grade indicates that the diameter of the ball has a tolerance of ±0.25 micrometers.

Here is a breakdown of the ISO 3290 grades and their corresponding dimensional tolerances:

G10: ±0.25 micrometers

G16: ±0.4 micrometers

G25: ±0.5 micrometers

G40: ±0.8 micrometers

G60: ±1.2 micrometers

G100: ±2.5 micrometers

G200: ±5.0 micrometers

G500: ±12.5 micrometers

G1000: ±25.0 micrometers

It's worth noting that higher precision levels require tighter dimensional tolerances, resulting in more accurate and consistent ball sizes. This precision is important in applications like bearings, valves, measurement instruments, and precision machinery where the balls need to fit precisely and provide reliable performance. 

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