QJ3940X3 Four Point Angular Contact Ball Bearings

QJ3940X3 Bearing Technical Specifications

Dimensions
  • Bore Diameter(d) 200 mm
  • Outer Diameter (D) 289.5 mm
  • Width(B) 58 mm
Basic Load Rating
  • Dynamic Load Rating (Cr) 235 kN
  • Static Load Rating (Cor) 384 kN
  • Weight 13.2 kg
Bearing Model
QJ3940X3(Old Code:176740)
Bearing Type
Four Point Angular Contact Ball Bearings
Main Dimensions
200mm × 289.5mm × 58mm
ID 200 mm Inside diameter(I.D.)
OD 289.5 mm Outside diameter(O.D.)
B 58 mm Width
rsmin 2.1 mm Minimum Fillet Radius
damin 223 mm Minimum mounting shaft diameter
Damax 267 mm Maximum mounting bore diameter
ramax 2 mm Maximum mounting chamfer radius
Grease speed 1100 r/min Limiting speed (grease lubrication)
Oil speed 1400 r/min Limiting speed(oil lubrication)
Cr 235 kN Radial dynamic load rating
Cor 384 kN Radial static load rating
Mass 13.2 Kg Weight
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)
Cage
Steel cage
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

Four Point Angular Contact Ball Bearings (Model: QJ3940X3 / 176740) are designed to handle combined radial and axial loads in both directions, providing high rigidity and precision. The bearing has a bore diameter of 200mm, outer diameter of 289.5mm, and a width of 58mm. The minimum fillet radius is 2.1mm. It offers a dynamic load capacity of 235kN and a static load capacity of 384kN. With a limiting speed of 1100 r/min for grease lubrication and 1400 r/min for oil lubrication, and a weight of 13.2 kg, it suits various industrial setups. The mounting dimensions include a minimum inner ring diameter of 223mm, maximum outer ring diameter of 267mm, and maximum fillet radius of 2mm. Ideal for precision machine tools, small to medium-sized industrial gearboxes, this bearing ensures reliable operation in different machinery. Manufactured to high-quality standards, it delivers exceptional precision and durability under varying loads, supporting both radial and bidirectional axial load requirements. 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.