021.60.3550 Slewing Bearing

021.60.3550 Bearing Technical Specifications

  • Bore Diameter(d) 3272mm
  • Outer Diameter (D) 3828mm
  • Width(B) 226mm
  • Dynamic Load Rating (Cr)
  • Static Load Rating (Cor) 21100kN
  • Weight 3700kg

Double-Row Step Bore Ball Slewing Bearings (Model: 021.60.3550) are engineered for heavy-duty slewing applications. With a bore diameter of 3272mm, outer diameter of 3828mm, 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: 21100kN | Weight: 3700 kg | Gear type: External gear type. Suitable for large-scale marine equipment, steel mill turntables, and bridge bearings, 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.

Main Dimensions

3272mm × 3828mm × 226mm

Double-Row Step Bore Ball Slewing Bearings External gear type Dimensional Diagram

Bearing Model

Bolt Hole Diameter

D1 3738 mm
D2 3362 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 3936 mm Tooth tip diameter of external gear ring
z 194 Number of teeth of external gear

Brand

WJY / OEM Available

Origin

Wafangdian, China (Global bearing manufacturing hub with 30+ years expertise)

Quality Standard

ISO 9001:2015 Certified

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

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