NU2248-EX-TB-M1

Cylindrical roller bearing

Cylindrical roller bearings NU22..-E, main dimensions to DIN 5412-1, non-locating bearing, separable, with cage, Running accuracy in P6

Display units

Metric

Imperial

Main Dimensions & Performance Data

d	240 mm	Bore diameter
D	440 mm	Outside diameter
B	120 mm	Width
C_r	1,850,000 N	Basic dynamic load rating, radial
C_0r	2,800,000 N	Basic static load rating, radial
C_ur	295,000 N	Fatigue load limit, radial
n_G	2,250 1/min	Limiting speed
n_ϑr	900 1/min	Reference speed
≈m	81.5 kg	Weight

Mounting dimensions

d_{a min}	257 mm	Minimum diameter shaft shoulder
d_{a max}	284.5 mm	Maximum diameter of shaft shoulder
d_{b min}	289.5 mm	Minimum shaft shoulder
D_{a max}	423 mm	Maximum diameter of housing shoulder
r_{a max}	3 mm	Maximum recess radius
r_{a1 max}	3 mm	Maximum recess radius

Dimensions

r_min	4 mm	Minimum chamfer dimension
r_{1 min}	4 mm	Minimum chamfer dimension
s	10.2 mm	Axial displacement
E	399 mm	Raceway diameter outer ring
F	287 mm	Raceway diameter inner ring
D_{1 min}	376.6 mm	Minimum rib diameter outer ring

Temperature range

T_min	-30 °C	Operating temperature min.
T_max	150 °C	Operating temperature max.

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Your current product variant

Design	EX	Increased Capacity Design Design Modified
Cage	M1	Two Piece Brass Cage Roller Guided
Number of rolling element rows	1	Single-row design

Characteristics

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