SKF NN 3009 KTN/SP Tapered 1:12 45 mm ID Roller Bearing, 75 mm OD

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RS 제품 번호:
233-7210
제조사 부품 번호:
NN 3009 KTN/SP
제조업체:
SKF
제품 정보를 선택해 유사 제품을 찾기
모두 선택

브랜드

SKF

Product Type

Roller Bearing

Inside Diameter

45mm

Race Width

23mm

Bore Type

Tapered 1:12

Roller Material

Steel

Cage Material

Non-Metallic

Static Load Rating

65.5kN

Number of Rows

2

Internal Clearance

C1

Bearing Material

Steel

Dynamic Load Rating

50.1kN

Standards/Approvals

No

Series

NN 30

Maximum Speed - Oil

14000rpm

Maximum Speed - Grease

12000rpm

Outside Diameter

75mm

Race Type

Flanged

COO (Country of Origin):
IT

SKF NN 30 Series Roller Bearing, 45mm Inside Diameter, 75mm Outside Diameter - NN 3009 KTN/SP


This roller bearing is a tapered double-row component designed to carry combined loads in rotating assemblies, offering controlled internal clearance and a flanged outer race for axial location. It is intended for installations requiring a tapered bore and operates with either lubricant or grease at elevated rotational speeds.

Features and Benefits:


• C1 internal clearance reduces endplay for preload control
• Non-metallic cage lowers noise and reduces frictional losses
• Steel rollers provide high contact strength under load
• Flanged race assists in axial positioning during assembly
• 50.1 kN dynamic load rating supports sustained operational forces
• 65.5 kN static load rating resists heavy stationary loads

Applications


• Suitable for gearboxes requiring tapered bore mounting
• Ideal for wheelset or axle-end assemblies with axial loads
• Used with high-speed spindles operating on oil lubrication
• Can be used for shaft arrangements needing flange location
• Suitable for industrial rollers subjected to heavy static load

What bore contraction method does it require for mounting?


The inner bore is tapered at 1:12 and requires a matching taper sleeve or tapered shaft seating for correct fitting.

Which lubrication regime permits the highest rotational speed?


Operating with oil lubrication allows up to 14,000 r/min while grease-lubricated operation is limited to 12,000 r/min.

How does the bearing cope with stationary high loads?


Its static load capacity of 65.5 kN provides resistance to deformation under heavy non-rotating loads.

What cage and rolling-element materials affect thermal and wear behaviour?


The cage is non-metallic which reduces seizure risk at contact points and the rollers are steel to maintain rolling contact durability.

How does the outer geometry assist assembly alignment?


The outer ring incorporates a flange on the race to provide a positive axial locating face during installation.

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