IBC NU320.EA Cylindrical Roller Bearing 100 × 215 × 47 mm

Cylindrical Roller Bearing

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EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.

Category: Cylindrical Roller Bearing
Bore: 100 mm
Outer Ø: 215 mm
Width: 47 mm

Overview

IBC NU320.EA Cylindrical Roller Bearing is designed for high radial load capacity through line contact between rollers and raceways. It is suitable for rigid, heavy-duty applications such as motors, gearboxes, rolling mills, and machine tools, with N, NU, NJ, and NUP designs offering different axial locating functions.

Cylindrical rollers and a cage are arranged between inner and outer ring raceways. Depending on flange configuration, the bearing can be separable and may support axial load in one or both directions.

Key features

High radial load capacity
Rigid performance for high-speed operation
Separable design for easier mounting
Axial locating capability by design variant

Typical applications

Industrial electric motors
Gearboxes and reducers
Machine tool spindle support positions
Rolling mills, paper machines, and heavy machinery

Selection guidance

Choose the N, NU, NJ, or NUP design by load direction, axial locating requirement, cage material, internal clearance, and lubrication condition.

Symbol	Value	Description
C_0r	425000 N	Basic static load rating, radial
Cr	450000 N	Basic dynamic load rating, radial
C_u	51000 N	Fatigue limit load
n_G	3500 1/min	Limiting speed (grease)
≈m	8 kg	Weight
n_ϑr	3200 1/min	Reference speed

Symbol	Value	Description
d	100 mm	Bore diameter
D	215 mm	Outside diameter
B	47 mm	Width
F	127.5 mm	Raceway diameter, inner
s	2.9 mm	Permissible axial displacement
d₁	139.6 mm	Shoulder diameter, inner ring
D₁	182 mm	Shoulder diameter, outer ring
r_{1,2 min}	3 mm	Minimum chamfer dimension
r_{3,4 min}	3 mm	Minimum chamfer dimension, side face

Symbol	Value	Description
d_{a min}	114 mm	Min. shoulder diameter for mounting, inner ring
D_{a max}	201 mm	Max. shoulder diameter for mounting, housing
D_{b max}	130 mm	Max. shoulder diameter, sealed side
r_{a max}	2.5 mm	Max. fillet radius
r_{b max}	2.5 mm	Max. fillet radius, side face

Symbol	Value	Description
k_f	0.15	Minimal load factor

Code	Description
100Cr6	Ring material
Single row cylindrical roller bearing	Product type

datasheet pdf download

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