NTN 7221B bearings

7221B, Angular contact ball bearing, pressed cage, contact angle 40°

NTN angular contact ball bearing, pressed cage

Measurement system: Metric
Bore diameter: 105.000 mm
Outside diameter: 190.000 mm
Width: 36.000 mm
Cr: 157000 N
C0r: 129000 N
Limiting speed: 3200 r/min
Net weight: 3.870 kg
Number of rows: 1
Contact angle deg: 40
Sealing: Without
Cage: Steel sheet
Bearing material: Steel
Rolling material: Steel
Tolerance class: Normal (PN)

In stock

Technical specification for NTN 7221B

NTN 7221B
PRODUCT DEFINITION
Part Number	7221B
Brand	NTN
Description	Angular contact ball bearing
Net weight	3.870 kg
d	105 mm	Internal diameter
D	190 mm	External diameter
B	36 mm	Width
a	80.000 mm	Charge load application point
α	40°	Contact angle
rs	2.1 mm	Min fillet radius
r1s	1.10 mm	Min fillet radius
PRODUCT PERFORMANCE
C	157 kN	Dynamic load
C0	129 kN	Static load
Cu	8.05 kN	Fatigue limit load
N	4 300 tr/min	Oil lubrication limit speed
N	3 200 tr/min	Grease lubrication limit speed
ABUTMENT
da min.	117 mm	Min shoulder diameter IR
db min.	112 mm	Min shoulder diameter IR
Da max.	178 mm	Max shoulder diameter OR
Db max.	183 mm	Max shoulder diameter OR
ra max.	2 mm	Max shaft & housing fillet radius
r1a max.	1 mm	Max fillet radius

7221B, Brand: NTN, Angular contact ball bearing, Internal diameter 105 mm; External diameter 190 mm; Width 36 mm; 3.870 kg.

NTN 7221B, 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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