NJ 2326 ECML/C4

size:130*280*93mm
weight:29.5 kg
Cylindrical roller bearings
Single row cylindrical roller bearings
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Product Introduction

Bore diameter	130 mm
Outside diameter	280 mm
Width	93 mm
Basic dynamic load rating	1 060 kN
Basic static load rating	1 250 kN
Reference speed	2 400 r/min
Limiting speed	4 500 r/min
Product net weight	29.5 kg

NJ 2326 ECML-C4 bearing

d	130 mm	Bore diameter
D	280 mm	Outside diameter
B	93 mm	Width
d1	≈181 mm	Shoulder diameter of inner ring
D1	≈235.3 mm	Shoulder diameter of outer ring
F	167 mm	Raceway diameter of inner ring
r1,2	min.4 mm	Chamfer dimension
r3,4	min.4 mm	Chamfer dimension
s	max.8.7 mm	Permissible axial displacement

The NJ 2326 ECML/C4 cylindrical roller bearing is engineered for extreme radial load conditions in applications such as mining conveyor systems, cement mill gearboxes, and steel rolling mill stands. The "ECML" suffix indicates an optimized internal design featuring a brass cage (MA type) with enhanced roller guidance, preventing skewing during rapid reversals in paper machine dryers. Constructed from vacuum-degassed SUJ2 alloy steel hardened to 60-64 HRC, the bearing's C4 radial clearance accommodates thermal expansion in kiln drive applications operating at 120°C ambient temperatures. Precision-ground rollers with logarithmic profiles reduce edge stress by 25% compared to ISO 15243:2017 standards, critical for prolonging service life in vibrating screens for aggregate processing. The inner ring's dual integral ribs and outer ring's single rib (NJ type) provide axial displacement capability up to 1.2mm, ideal for floating arrangements in wind turbine generator shafts.

bearing type stock