SKF NKIA5909 Angular Contact Ball Bearing 45 × 68 × 30 mm

Angular Contact Ball Bearing

RFQ

Estimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)

In stockEstimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)

EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.

Category: Angular Contact Ball Bearing
Dimensions: 45x68x30mm

Overview

Angular contact ball bearing

Angular contact ball bearings have raceways offset to form a contact angle, accommodating radial loads and axial loads in one direction simultaneously. Mounted in pairs (back-to-back, face-to-face or tandem), they support axial loads in both directions and moment loads. Their high precision and rigidity make them suitable for machine-tool spindles, pumps and gear units.

Key features

Radial plus single-direction axial load
Paired arrangements for bidirectional/moment loads
High precision and rigidity
Suited to high-speed spindles

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
reference_speed_rpm	7 500 r/min	Reference speed
limiting_speed_rpm	8 500 r/min	Limiting speed

Symbol	Value	Description
d	45 mm	Bore diameter
D	68 mm	Outside diameter
B	30 mm	Width
C	30 mm	Outer ring width

Symbol	Value	Description
da	min. 49 mm	da
Da	max. 64 mm	Da
ra	max. 0.6 mm	ra

Code	Description
구름 베어링 유형	Complete bearing
베어링 부품	Complete bearing
스러스트 부품	With cage
경방향 부품	With cage
구름 요소(스러스트 부품)	Ball
축방향 하중 역량	Single row
경방향 내부틈새	CN
공차 클래스	Normal
소재, 베어링	Bearing steel
코팅	None
윤활제(스러스트 부품)	None
제품 순 중량	0.375 kg
eClass 코드	23-05-09-03
UNSPSC 코드	31171512

datasheet pdf download

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