IBC NN3014 Cylindrical Roller Bearing 70 × 110 × 30 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: 70 mm
Outer Ø: 110 mm
Width: 30 mm

Overview

IBC NN3014 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
Cr	98200 N	Basic dynamic load rating, radial
C_0r	150500 N	Basic static load rating, radial
C_u	17700 N	Fatigue limit load
n_G	7000 1/min	Limiting speed (grease)
n_O	8500 1/min	Limiting speed (oil-air)
≈m	1.05 kg	Weight
S_r	1650 N/μm	Radial stiffness

Symbol	Value	Description
d	70 mm	Bore diameter
D	110 mm	Outside diameter
B	30 mm	Width
E/F	100 mm	Race diameter
s	2.3 mm	Permissible axial displacement
b	5.5 mm	Lubrication groove width
K	3 mm	Lubrication hole diameter
d₁	85.5 mm	Shoulder diameter, inner ring
r_min	1.1 mm	Minimum chamfer dimension

Symbol	Value	Description
d_{a min}	76.5 mm	Min. shoulder diameter for mounting, inner ring
D_{a min}	101 mm	Min. shoulder diameter for mounting, housing
D_{a max}	103.5 mm	Max. shoulder diameter for mounting, housing
r_max	1.1 mm	Max. fillet radius

Code	Description
100Cr6	Roller material
Double row high precision cylindrical roller bearing (NN)	Product type

datasheet pdf download

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