SKF 7210 CD/P4A Angular Contact Ball Bearing 50 × 90 × 20 mm

Super-precision, high-capacity, single row angular contact ball bearing

Angular Contact Ball Bearing

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Category: Angular Contact Ball Bearing
Dimensions: 50x90x20mm

Overview

Super-precision, high-capacity, single row angular contact ball bearing

These super-precision, high-capacity, single row angular contact ball bearings, with 15° contact angle, accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only. They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures.

Key features

Very high running accuracy
Very high load carrying capacity
Relatively high speed and stiffness

Typical applications

Machine tool spindles and support shafts
Pumps and compressors
High-speed motors
Precision gearboxes and robot drives

Selection guidance

Select by contact angle, arrangement, preload, precision class, axial load direction, and operating speed.

Symbol	Value	Description
C	44.9 kN	Basic dynamic load rating
C0	34 kN	Basic static load rating
grease_speed_rpm	16 000 r/min	Attainable grease lubrication speed
oil_air_speed_rpm	26 000 r/min	Attainable oil-air lubrication speed

Symbol	Value	Description
d	50 mm	Bore diameter
D	90 mm	Outside diameter
B	20 mm	Width
α	15 °	Contact angle

Symbol	Value	Description
da	min. 57 mm	da
db	min. 57 mm	db
Da	max. 83 mm	Da
Db	max. 85.8 mm	Db
ra	max. 1 mm	ra
rb	max. 0.6 mm	rb
dn	65.6 mm	dn

Very high running accuracy
Very high load capacity
Relatively high speed and rigidity

Code	Description
접촉 유형	Normal contact (four-point contact)
열 개수	1
링 유형	One-piece inner and outer ring
설계	High capacity D
유니버설 매칭 베어링	No
일치된 배열	No
일치된 조건(축방향 틈새/예압)	Not applicable
공차 클래스	P4A
소재, 베어링	Bearing steel
코팅	None
씰링	None
윤활유	None
제품 순 중량	0.454 kg
eClass 코드	23-05-08-04
UNSPSC 코드	31171531

datasheet pdf download

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