Slewing Ring Bearing Ball for Cranes
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Slewing Ring
Slewing Ring Bearing Balls for Cranes
The slewing ring bearing balls we produced are mainly applied in crane bearings, such as single/double row ball bearing, single cross roller bearing, three roller bearing, double row angular contact ball bearing.Yusion carries out standard management systems strictly according with proprietary standard regulated by international technology criterion of steel to select our raw material.And by advanced facility, top-ranking testing intruments and stringent control procedures to guarantee our wind energy steel balls with superior quality and long life.
SIZE RANGE
Ø 15.875 mm – Ø 50 mm (GCr15/SUJ2/100Cr6 Chrome Steel Balls)
Ø 50 mm – Ø 80 mm(GCr15SiMn/SUJ3/100CrMn6 Chrome Steel Balls)
TECHNICAL FEATURES
1. Quality grades
G40 for balls Ø39.688-65mm
G60 for balls Ø 69.85-80mm
2. Hardness
GCr15 :Core hardness min HRC55
Surface to OD’S 15% depth hardness min HRC58
Surface Hardness min HRC61
GCr15SiMn:Core hardness min HRC55
Surface to OD’S 15% depth hardness min HRC58
Surface Hardness min HRC61
MATERRIAL COMPARISON LIST
State | China | Japan | America | Germany | France | UK | Russia |
Standard | GB | JIS | ASTM/AISI | DIN/VDEh | NF | BS | ???? |
Title | Gcr15 | SUJ2 | 52100 | 100Cr6 (1.3505) | 100C6 | 534A99 | ?X15 |
Tiltle | GCr15SiMn | SUJ3 | * | 1.3520 | 100CrMn6 | * | ?X15C? |
CHEMICAL COMPOSITION
Steel NO. | Chemical Composition% | |||||
C | Si | Mn | P | S | Cr | |
GCr15 | 0.90-1.05 | 0.15-0.35 | 0.20-0.40 | =0.027 | =0.020 | 1.35-1.65 |
GCr15SiMn | 0.95-1.05 | 0.40-0.65 | 0.90-1.20 | =0.027 | =0.020 | 1.35-1.65 |
MECHANICAL PROPERTY
Item | GCr15 | GCr15SiMn |
Density (g/cm3) | 7.8 | 7.8 |
Hardenability | Good | Excellent |
Wear Resistance | Excellent | Excellent |
Anti-rust | No | No |
Anti-corrosion | No | No |
Magnetic
| Yes
| Yes
|
PRODUCTION PROCESS
QUALITY INSPECTION
Our wind turbine bearings ball were 100% tested by eddy current test machine.
PACKING
Paper Cartons & Wooden Pallet.
Note: for 45mm balls, 50pcs/ctn,36ctn/pallet,1800pcs/pallet;
for 50mm balls, 50pcs/ctn,30ctn/pallet,1500pcs/pallet;
for 60mm balls, 30pcs/ctn,30ctn/pallet,900pcs/pallet;
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