NTN 7228B bearings
7228B, Angular contact ball bearing, machined brass cage, contact angle 40

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NTN angular contact bll bearnig
Measurement system
Metric
Bore diameter
140.000 mm
Outside diameter
250.000 mm
Width
42.000 mm
Cr
203000 N
C0r
195000 N
Limiting speed
2300 r/min
Net weight
8.780 kg
Number of rows
1
Contact angle deg
40
Sealing
Without
Cage
Machined brass
Bearing material
Steel
Rolling material
Steel
Tolerance class
Normal (PN)

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Technical specification for NTN 7228B

NTN 7228B
Part Number 7228B
Brand NTN
Description Angular contact ball bearing
Net weight 8.780 kg
PRODUCT DEFINITION
d 140 mm Internal diameter
D 250 mm External diameter
B 42 mm Width
a 103.000 mm Charge load application point
α 40° Contact angle
rs 3.0 mm Min fillet radius
r1s 1.10 mm Min fillet radius
PRODUCT PERFORMANCE
C 203 kN Dynamic load
C0 195 kN Static load
Cu 10.1 kN Fatigue limit load
N 3 100 tr/min Oil lubrication limit speed
N 2 300 tr/min Grease lubrication limit speed
ABUTMENT
da min. 0 mm Min shoulder diameter IR
db min. 154 mm Min shoulder diameter IR
Da max. 236 mm Max shoulder diameter OR
Db max. 243 mm Max shoulder diameter OR
ra max. 2.5 mm Max shaft & housing fillet radius
r1a max. 1 mm Max fillet radius
NTN angular contact bll bearnig

7228B, Brand: NTN, Angular contact ball bearing, Internal diameter 140 mm; External diameter 250 mm; Width 42 mm; 8.780 kg.

NTN 7228B, single row angular contact ball bearing is designed to withstand combined loads with a predominant axial componen. Installed in opposition with another bearing of the same type, it guarantees high mounting rigidity.

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