ITEM:BK4520
TYPE:Drawn cup needle roller bearing with a closed end
SIZE: 45*52*20mm
WEIGHT :0.072 kg
Main Dimensions & Performance Data | ||||||||
Reference speed | 4,450 | 1/min | Limiting speed for grease lubrication | nG Grease | 3,550 | 1/min | ||
Limiting speed | nG | 5,900 | 1/min | Fatigue load limit, radial | Cur | 7,700 | N | |
Basic static load rating, radial | C0r | 59,000 | N | Basic dynamic load rating, radial | Cr | 27,000 | N | |
Width, outer ring | B | 20 | mm | Outside diameter | D | 52 | mm | |
Under roller diameter | Fw | 45 | mm |
BK4520 SKF Drawn Cup Needle Roller Bearing With A Closed End 45x52x20mm
Drawn cup needle roller bearings, as the name suggests, are needle roller bearings with a deep drawn, thin walled outer ring with either open ends or a closed end. They are characterized by a very low sectional height and high load carrying capacity. Drawn cup needle roller bearings are typically used in applications where the housing bore cannot be used as a raceway for a needle roller and cage assembly, but where a very compact and economical bearing arrangement is required.
Generally, drawn cup needle roller bearings have a recommended maximum operating temperature of 140 °C, unless otherwise stated. The maximum operating temperature is limited by the seal and cage materials and the applied grease.
Copyright © 2019 Zhejiang waxing electromechanical co.LTD. | All Rights Reserved Design
Hello, please leave your name email or WhatsApp here before chat online so that we won't miss your message and contact you smoothly.
CONTACT US
Consult our customers for surprise discounts.