SKF NA6904 Needle Roller Bearing 20 × 37 × 30 mm

Single row needle roller bearing with machined rings, with flanges

Needle Roller Bearing

RFQ

Restocking soon · Inquire

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

Category: Needle Roller Bearing
Dimensions: 20x37x30mm

Overview

Single row needle roller bearing with machined rings, with flanges

Single row needle roller bearings incorporate cylindrical rollers that are small in diameter relative to their length. Owing to their large number of rollers, the bearings have a high load carrying capacity. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.

Key features

High radial load carrying capacity
High stiffness
Low cross-sectional height
Accommodate axial displacement in both directions
Separable design

Typical applications

Automotive transmissions
Industrial gearboxes
Compressors and pumps
Links, pivots, and rocker arms

Selection guidance

Check mounting envelope, inner ring requirement, shaft surface hardness, lubrication, load, and speed range.

Symbol	Value	Description
C	40.5 kN	Basic dynamic load rating
C0	53 kN	Basic static load rating
reference_speed_rpm	15 000 r/min	Reference speed
limiting_speed_rpm	17 000 r/min	Limiting speed
performance_class	SKF Explorer	SKF performance class

Symbol	Value	Description
d	20 mm	Bore diameter
D	37 mm	Outside diameter
B	30 mm	Width

Symbol	Value	Description
da	min. 22 mm	da
Da	max. 35 mm	Da
ra	max. 0.3 mm	ra

High radial load capacity
High rigidity
Low cross-section height
Accommodates axial displacement in both directions
Separable design

Code	Description
베어링 부품	Complete bearing
열 개수	1
외륜 유형	Machined (solid)
정렬 기능	None
케이지	Sheet metal
플랜지 개수, 외부 링	2
경방향 내부틈새	CN
공차 클래스	Normal
소재, 베어링	Bearing steel
코팅	None
씰링	None
윤활유	None
재윤활 기능	Included
제품 순 중량	0.131 kg
eClass 코드	23-05-09-03
UNSPSC 코드	31171512

datasheet pdf download

Also searched as

The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page: