021.60.3150 Double-Row Step Bore Ball Slewing Bearings

021.60.3150 Bearing Technical Specifications

Dimensions
  • Bore Diameter(d) 2872 mm
  • Outer Diameter (D) 3428 mm
  • Width(B) 226 mm
Basic Load Rating
  • Dynamic Load Rating (Cr) kN
  • Static Load Rating (Cor) 18700 kN
  • Weight 3300 kg
Bearing Model
021.60.3150
Related Products
021.60.3150 023.60.3150
Bearing Type
Double-Row Step Bore Ball Slewing Bearings
Gear Type
External gear type
Main Dimensions
2872mm × 3428mm × 226mm
Double-Row Step Bore Ball Slewing Bearings External gear type Dimensional Diagram

Bolt Hole Diameter

D1 3338 mm
D2 2962 mm
dn1 dn2 45
dm1 dm2 M42
L 84 mm
n 56 mm

Structure dimensions

n1 8 mm
D1 mm
d1 mm
H1 214 mm
h 56 mm

Gear

b 150 mm Tooth width
m 150 Module
da 3536 mm Tooth tip diameter of external gear ring
z 174 Number of teeth of external gear
Brand
WJY / OEM Available
Origin
Wafangdian, China (Global bearing manufacturing hub with 30+ years expertise)
Precision Rating
P0 (Standard) / P6 / P5 / P4 (Higher precision for demanding applications)
Material
  • GCr15 Bearing Steel (Industry-standard for high load & fatigue resistance)
  • GCr15SiMn
  • GCr18Mo
  • G20Cr2Ni4A
Clearance
C3 (standard), customizable to C0/C2/C4/C5
Quality Standard
ISO 9001:2015 Certified

Double-Row Step Bore Ball Slewing Bearings (Model: 021.60.3150) are engineered for heavy-duty slewing applications. With a bore diameter of 2872mm, outer diameter of 3428mm, and width of 226mm, it features This double-row step bore design provides exceptional load distribution across two rows of balls, enabling high axial and radial load capacities while maintaining compact dimensions. The step bore configuration simplifies installation and alignment in complex machinery.. Static load capacity: 18700kN | Weight: 3300 kg | Gear type: External gear type. Suitable for heavy-duty cranes, mining equipment, and wind turbine yaw systems, it ensures reliable operation under heavy loads and harsh environmental conditions. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.

Delivery Time

  • For in-stock own-brand bearings, Dalian JinYu HuaYang guarantees shipment arrangement within 3–5 days after payment confirmation.
  • For OEM/ODM orders, the production and delivery lead time for a full container typically ranges from 20–35 days (depending on order complexity).

Shipping Methods

Ocean Freight/Land Transport

Warranty

We provide 12-month warranty, extendable to 18 months via authorized JinYu distributors.

Pricing Information

Bearing prices vary by precision grade, raw material quality, and market dynamics. For customized quotes, please submit an inquiry via our contact form.