Stahlkugeln für Lager
Hochwertige Präzisionslagerkugeln für Rillen-, Schräg-, Axial-, Miniatur- und Linearlager. Erhältlich in AISI 52100 Chromstahl, 440C Edelstahl, Kohlenstoffstahl und Keramik – von G3 Super Precision bis G1000 Commercial Grade. 0,3 mm bis 250 mm Durchmesser.
Präzisionslagerkugeln für jede Anwendung
Ball bearings are the most widely used rolling-element bearing in the world — and at their heart lies the bearing ball. The performance, lifespan, and reliability of any ball bearing depend directly on the quality of its balls: dimensional accuracy, sphericity, surface finish, and material integrity.
At Jiaxin Steel Ball, we have manufactured precision bearing balls for over 30 years, supplying Fortune 500 bearing manufacturers, automotive Tier 1 suppliers, and precision equipment OEMs across 40+ countries. Our bearing balls are produced to ISO 3290 / ABMA 3 standards and certified under ISO 9001:2015.
We produce over 500 million bearing balls annually, covering the full spectrum from miniature balls (0.3 mm) for micro bearings to large-diameter balls (250 mm) for heavy industrial slewing rings.
ISO 9001
Zertifiziert
30+ Jahre
Erfahrung
0.3–250mm
Größenbereich
G3–G60
Präzision
AISI 52100 Chromstahl
-
Hardness (HRC): 60–67
-
Max Operating Temp: 150°C (300°F)
-
Corrosion Resistance: Low
-
Best For: General purpose, high-load bearings, automotive, electric motors
-
Common Grades: G10, G16, G25, G40
Edelstahl AISI 316
-
Hardness (HRC): 25–35 (annealed)
-
Max Operating Temp: 200°C (390°F)
-
Corrosion Resistance: Very High
-
Best For: Chemical processing, offshore, highly corrosive environments
-
Common Grades: G100, G200
AISI 440C Edelstahl
-
Hardness (HRC): 57–65
-
Max Operating Temp: 200°C (390°F)
-
Corrosion Resistance: High
-
Best For: Corrosive environments, food processing, marine, medical
-
Common Grades: G10, G16, G25, G40
Si₃N₄-Keramik
-
Hardness (HRA): 75–80
-
Max Operating Temp: 800°C+ (1470°F+)
-
Corrosion Resistance: Excellent
-
Best For: Ultra-high-speed spindles, non-magnetic, vacuum, high-temp
-
Common Grades: G5, G10, G16
AISI 1010/1020 Kohlenstoffstahl
-
Hardness (HRC): 58–65 (case)
-
Max Operating Temp: 120°C (250°F)
-
Corrosion Resistance: Low
-
Best For: Low-speed, high-load industrial bearings, agriculture
-
Common Grades: G100, G200, G500
Werkstoffe für Lagerkugeln
Die Materialauswahl bestimmt Belastbarkeit, Geschwindigkeitsklasse, Korrosionsbeständigkeit und Betriebstemperaturbereich. Wir bieten fünf Materialoptionen für Lageranwendungen an:
Material Selection Guide
The most common bearing ball material is AISI 52100 chrome steel (1.3505 / 100Cr6), offering the best balance of hardness, wear resistance, and cost. For corrosive environments, upgrade to AISI 440C stainless steel. For the highest speeds and temperatures, silicon nitride (Si₃N₄) ceramic balls — 40% lighter than steel with hardness exceeding HRC 78 — deliver superior performance at a premium.
GRADE G3
Tolerance: ±0.08 µm · Sphericity: 0.08 µm · Ra: 0.012 µm
Best for: Ultra-precision spindles, aerospace gyroscopes
Grade G10
Tolerance: ±0.25 µm · Sphericity: 0.25 µm · Ra: 0.016 µm
Best for: Precision bearings, automotive wheel hubs
Grade G25
Tolerance: ±0.65 µm · Sphericity: 0.65 µm · Ra: 0.030 µm
Best for: General industrial bearings, conveyors
Grade G200–G1000
Tolerance: ±5–25 µm · Sphericity: 5–25 µm · Ra: 0.12–0.30 µm
Best for: Low-speed, high-load, construction equipment
Grade G5
Tolerance: ±0.13 µm · Sphericity: 0.13 µm · Ra: 0.014 µm
Best for: Machine tool spindles, high-speed bearings
Grade G16
Tolerance: ±0.25 µm · Sphericity: 0.25 µm · Ra: 0.016 µm
Best for: Precision bearings, automotive wheel hubs
Grade G40
Tolerance: ±1.0 µm · Sphericity: 1.0 µm · Ra: 0.050 µm
Best for: Agricultural equipment, fans, blowers
Grade G100
Tolerance: ±2.5 µm · Sphericity: 2.5 µm · Ra: 0.080 µm
Best for: Heavy-duty industrial, mining, crushers
Präzisionssorten für Lagerkugeln
Präzisionsqualitäten werden durch die Normen ISO 3290/ABMA 3 definiert und decken Durchmessertoleranz, Sphärizität (Abweichung von der Rundheit), Oberflächenrauheit (Ra) und Chargengleichmäßigkeit ab. Niedrigere Sortenzahl = engere Toleranz = höhere Präzision.
Präzisionssorten für Lagerkugeln
Unsere Lagerkugeln sind präzisionsgefertigt für das gesamte Spektrum an Kugellagerkonstruktionen:
Rillenkugellager
-
Typical Material: 52100 Chrome
-
Common Grade: G10–G40
-
Diameter Range: 0.3 – 80 mm
-
Key Requirements: High sphericity,, good hardness
Miniaturlager
-
Typical Material: 440C, Si₃N₄
-
Common Grade: G3–G10
-
Diameter Range: 0.3 – 10 mm
-
Key Requirements: Ultra-precision, low noise, consistent dimensions
Schrägkugellager
-
Typical Material: 52100, 440C
-
Common Grade: G5–G16
-
Diameter Range: 1 – 50 mm
-
Key Requirements: Tight diameter tolerance, excellent surface finish
Selbstausrichtende Lager
-
Typical Material: 52100, 440C
-
Common Grade: G16–G40
-
Diameter Range: 2 – 100 mm
-
Key Requirements: Good sphericity, moderate precision
Axialkugellager
-
Typical Material: 52100, Carbon
-
Common Grade: G25–G100
-
Diameter Range: 3 – 150 mm
-
Key Requirements: High compressive strength, wear resistance
Linearbewegungslager
-
Typical Material: 52100, 440C
-
Common Grade: G10–G25
-
Diameter Range: 1 – 40 mm
-
Key Requirements: Excellent roundness, smooth surface, consistent lot quality
Präzisionssorten für Lagerkugeln
Jede Lagerkugel durchläuft einen streng kontrollierten 7-Stufen-Prozess, um sicherzustellen, dass sie der angegebenen Qualität entspricht:
-
Cold Heading / Forging — Wire rod (52100, 440C, or specified alloy) is cut and cold-formed into rough spherical blanks.
-
Flashing (Soft Grinding) — The flash line from heading is removed; ball is brought close to final diameter.
-
Heat Treatment — Through-hardening for 52100 (850°C quench + temper) or case-hardening for carbon steel. 440C receives precipitation hardening for optimal corrosion resistance.
-
Hard Grinding — Parallel plate grinders refine size and sphericity to within grade tolerance.
-
Lapping & Polishing — Final surface finish achieved using abrasive compounds. Target Ra reached for specified grade.Inspection & Sorting — 100% automated optical sorting. Dimensional, hardness, and microstructure verification per ANSI/ASQ Z1.4 sampling plans.
-
Cleaning & Packaging — Ultrasonic cleaning, rust-prevention oil coating, sealed packaging per customer spec. Full material traceability with batch records retained 10+ years.
Qualitätskontrolle und Zertifizierungen
Jede Lagerkugelcharge wird vor dem Versand einer strengen Qualitätskontrolle unterzogen:
Maßprüfung
100 % automatisierte optische Sortierung nach Durchmesser, Sphärizität und Oberflächenfehlern. Statistische Stichprobe gemäß ANSI/ASQ Z1.4.
Härteprüfung
Rockwell C-Härte pro Charge überprüft. 52100: HRC 60–67. 440C: HRC 57–65. Kohlenstoff: HRC 58–65 (Gehäuse).
Materialzertifizierung
MTC gemäß EN 10204 3.1. Analyse der chemischen Zusammensetzung, Mikrostruktur und Einschlussbewertung inklusive.
ISO 9001:2015
Das Qualitätsmanagementsystem des Werks ist zertifiziert und wird jährlich überprüft. Vollständige Chargenrückverfolgbarkeit, Aufbewahrung der Aufzeichnungen für 10 Jahre.
Standards Compliance
Our bearing balls comply with the following international standards:
-
ISO 3290-1 — Steel balls for rolling bearings
-
ABMA 3 / ANSI B3.3 — American bearing ball standard
-
DIN 5401 — German bearing ball standard
-
JIS B 1501 — Japanese standard for steel balls
-
GBT 308.1 — Chinese national standard