NJ29/630EM Single Row Cylindrical Roller Bearings

NJ29/630EM Bearing Technical Specifications

Dimensions
  • Bore Diameter(d) 630 mm
  • Outer Diameter (D) 850 mm
  • Width(B) 128 mm
Basic Load Rating
  • Dynamic Load Rating (Cr) 3250 kN
  • Static Load Rating (Cor) 7250 kN
  • Weight 222 kg
Main Dimensions
630mm × 850mm × 128mm
ID 630 mm Inside diameter(I.D.)
OD 850 mm Outside diameter(O.D.)
B 128 mm Width
Cr 3250 kN Radial dynamic load rating
Cor 7250 kN Radial static load rating
Mass 222 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
The default cage is stamped steel; Steel, Brass, and Machined Brass cages are optional, with other types not enumerated here.
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

NJ Series Single Row Cylindrical Roller Bearing NJ29/630EM. Featuring inner ring with single rib + loose rib, outer ring with double ribs, it supports 3250 kN dynamic and 7250 kN static loads. Gearboxes requiring unidirectional axial positioning, suitable for heavy-duty machinery including rolling mills, mining crushers, and marine propulsion systems Specifically designed for enhanced durability for heavy impact applications. 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.