Our bearing balls manufacturers provide high-precision chrome steel balls designed for slingshot ammunition applications. These steel bearing balls offer excellent hardness, wear resistance, and corrosion protection for reliable bearing ball operation.
Chromium steel is a type of non-stainless steel, such as AISI 52100, En31, SUJ2, 100Cr6, 100C6, DIN 5401, used in applications such as bearings, tools, drill bits and utensils.
Asian-grade 52100 chromium steel balls are used in the ball and roller bearing industry and various automotive applications. These chromium steel balls have excellent surface quality. Due to hardening, they exhibit superior wear resistance, high hardness, and high load-bearing capacity.
Bearing balls are special highly spherical and smooth spheres, most commonly used in ball bearings, but also in components such as flywheel mechanisms. There are many different grades of balls.


|
Material comparison |
||||||||||
|
nation |
standard |
bearing steel |
carbon steel |
Stainless steel |
||||||
|
China |
YB |
GCr15 |
10 |
15 |
45 |
1Cr18Ni9 |
0Cr19Ni9 |
0Cr17Ni12Mo2 |
3Cr13 |
9Cr18 |
|
USA |
AISI |
E52100 |
1010 |
1015 |
1045 |
302 |
304 |
316 |
420 |
440C |
|
Japan |
JIS |
SUJ2 |
S9CK |
S15CK |
S45C |
SUS302 |
SUS304 |
SUS316 |
SUS420J2 |
SUS440C |
|
U.K. |
BS |
S135 |
045M10 |
090M15 |
080M46 |
302 S 25 |
304 S 15 |
316 S 16 |
420 S 45 |
-- |
|
534A99 |
-- |
-- |
060M47 |
-- |
- |
- |
- |
-- |
||
|
France |
NF |
100C6 |
XC10 |
XC12-18 |
XC42, XC45 |
Z10CN18.09 |
Z6CN18.09 |
Z6CND17.12 |
Z30C14 |
Z100CD17 |
|
Italy |
University |
UNI100C6 |
C10 |
C15 |
-- |
X15CN1808 |
-- |
-- |
X32C13 |
-- |
|
Sweden |
SIS |
-- |
1370 |
1350 |
1650 |
2331 |
-- |
-- |
2304 |
-- |
|
Germany |
DIN |
100Cr6 |
CK10 |
CK15 |
CK45 |
X12CrNi188 8 |
X5CrNi189 |
X5CrNiMn18 |
X30Cr13 |
-- |
|
1.3505 |
-- |
-- |
-- |
1.4300 |
1.4301 |
10 (1.4401) |
1.4028 |
-- |
||

Latest high-quality polished stainless steel balls, 2.381mm, 3mm, 4mm, 4.5mm, 5mm, 5.556mm, 6.35mm in diameter, 3/4 inch, 25/32 inch, 13/16 inch, 27/32 inch, 7/8 inch.
Please contact us if you have any needs or would like more details. We will provide you with the highest quality products and satisfactory service. Reasonable price



Functions and Specifications
(1) Traceability of raw materials.
(2) Stabilized heat treatment technology.
(3) High precision (good roundness/roughness/hardness).
Precision Engineering for Industrial Bearing Applications
The bearing chrome steel balls designed for slingshot ammunition are engineered for precision use in mechanical assemblies requiring durability and consistent performance. These steel bearing balls are primarily targeted at manufacturers, engineers, and suppliers involved in the production and maintenance of slingshot ammunition systems. Our company, a leading bearing balls manufacturer, delivers components that meet strict industrial standards, ensuring compatibility with various bearing ball assemblies that demand high load capacity and resistance to wear in challenging operational environments.
Superior Material Composition and Quality Control
Crafted from premium AISI 52100 and equivalent chromium steel grades, these chrome steel balls exhibit high hardness and excellent wear resistance. The steel bearing balls maintain strict roundness and surface finish standards, certified to ISO 9001:2008 and RoHS, guaranteeing adherence to international quality requirements. Available in a broad size range from 0.5 mm to 50.8 mm with a precision grade of G10, each ball is meticulously heat-treated and treated with rust prevention measures to optimize lifespan and performance under high-stress conditions commonly experienced by bearing ball components.
Applications in Slingshot Ammunition and Related Industries
These bearing balls fulfill critical roles in slingshot ammunition mechanisms where high-load capacity and reliable bearing characteristics are essential. Their robustness ensures reduced maintenance needs and long operating life in industrial repair contexts and sports equipment manufacturing. Furthermore, they provide consistent performance for testing, customization, and replacement of bearing components, supporting efficient system integration and product lifecycle management in mechanical applications where precision engineered bearing balls are indispensable.
Product Advantages
Design and Structural Benefits for Mechanical Integration
Our chrome steel balls feature an optimized microstructure enhancing strength and corrosion resistance, developed through controlled heat treatment and chrome plating techniques. These bearing balls manufacturers emphasize dimensional consistency and surface integrity, enabling seamless modular integration into multi-component bearing assemblies. The result is a product that meets stringent metallurgical and geometrical specifications, ensuring effective load distribution and minimizing wear within bearing ball systems used in demanding slingshot ammunition applications.
Enhanced Performance and End-User Reliability
Users of these steel bearing balls benefit from their exceptional roundness and smooth surface finish that reduce friction and operational noise, improving bearing efficiency and longevity. The strong rust prevention properties of the chrome steel balls protect against environmental degradation, contributing to lower failure rates and predictable maintenance cycles. Our quality-certified bearing balls deliver consistent functional performance, enhancing reliability across diverse applications and supporting high throughput in production and maintenance activities.
Use Scenarios
Role in Precision Bearings for Slingshot Ammunition
Within slingshot ammunition manufacturing, these steel bearing balls serve as critical components in precision bearings that facilitate smooth projectile acceleration and release mechanisms. Their superior hardness and resistance to wear ensure stable operation under repeated high-impact stresses, while compliance with industry standards guarantees integration compatibility. By enabling precise mechanical motion and reducing downtime for bearing replacements, these bearing balls contribute directly to improved product quality and operational efficiency in slingshot assembly lines.
Application in Industrial Repair and Maintenance
In industrial repair settings where mechanical components are exposed to high wear and corrosion risks, our chrome steel balls provide reliable replacements for worn bearing ball parts. Their robust material properties and standardized size offerings support efficient maintenance workflows and system refurbishment. The corrosion resistance and mechanical durability inherent in these bearing ball components make them particularly suited for environments requiring longevity and reduced failure intervals, facilitating streamlined repair processes and extending the overall lifecycle of bearing systems.
With over 20 years of industry experience, we specialize in manufacturing high-precision steel balls, including bearing balls and chrome steel balls. Our ISO-certified production facilities in Shandong ensure stringent quality control and reliable supply. Contact us now for your custom quote or technical consultation.


Yuncheng Kangda Steel Ball Co., Ltd.
1. Established in 1998. Has 20 years of experience in production and marketing.
2. Possesses SGS/ROHS certification and an excellent management team.
3. Advanced production and testing equipment.
4. Fixed assets of over 10 million yuan.
5. Technical personnel with more than 10 years of production experience.
6. Our warehouse is located in a national AAAAA-level logistics park, which offers large inventory and fast delivery.
7. Based on 40% of domestic market sales.
8. High reputation, with a large number of customers from all over the world.
We sincerely look forward to establishing partnerships with any client at any time.
Our factory manufactures workboats.



1. Cardboard box packaging 2. Cardboard box + pallet 3. Woven bag

4. Woven bags + rollers 5. Bottles + cartons + pallets 6. FIBC
Packaging details: Carton packaging, woven bags, cartons + pallets, rollers, or packaging according to customer requirements.
Delivery details: 3-5 days after order, depending on order quantity;


1. As a manufacturer and trading company, we are able to integrate the best resources in China and provide qualified parts to our customers at the most competitive prices.
2. Quality Assurance: 100% QC inspection before delivery; ISO9001:2008 and SGS certification; full refund or replacement for quality defects; 90-day quality warranty on all products.
3. Excellent customer service, responding within 24 hours.
4. Fast delivery: We have a large inventory ready to ship the day after ordering. For mass production, we can place urgent orders and deliver on time.
5. We offer OEM services and can produce custom parts based on customers' printed materials or samples.
6. With over 10 years of experience, we collaborate with clients worldwide.
7. One-stop service: We can handle everything from production, transportation, import customs clearance, and door-to-door delivery until your order is in your hands.