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Cuscinetti a rullini014NA6909

CUSCINETTO RULLINI NA 6909 ZW

Cuscinetti a rullini · 45 × 68 × 40 mm

CUSCINETTO RULLINI NA 6909 ZW – Cuscinetti a rullini

Description

Double 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 flanges to guide the roller and cage assemblies and has features to facilitate relubrication. It is possible to assemble the inner and outer rings separately, permitting interference fits for shaft and housing and enabling easy maintenance inspections.

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

Key data

Cuscinetti a rullini
Bore diameter
45mm
Outside diameter
68mm
Width
40mm
Basic dynamic load rating
81.5kN
Basic static load rating
137kN
Limiting speed
8,500r/min

Item details

Item
014NA6909
Category
A.01.02
Unit of measure
PZ

Technical specifications

25 specifications · highlighted (yellow border): used as catalog filters

Dimensions5

Bore diameter45mm
Outside diameter68mm
Width40mm
Radius of fillet (max.)0.6mm
Diameter of housing abutment (max.)64mm

Performance5

Basic dynamic load rating81.5kN
Basic static load rating137kN
Limiting speed8,500r/min
Reference speed7,500r/min
Fatigue load limit17.3kN

Design11

SealingWithout
Radial internal clearanceCN
CageSheet metal
Material, bearingBearing steel
LubricantNone
Number of rows2
Relubrication featureWith
CoatingWithout
Performance classSKF Explorer
Outer ring typeMachined (solid)
Bearing partComplete bearing

Tolerances and clearance1

Tolerance classNormal

Classifications3

UNSPSC code31171512
EClass code23-05-09-03
Indicative carbon footprint for new product1.8kg CO2e