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Needle Roller Bearings Needle Roller And Cage Assemblies

Brand : SDVV

Product origin : GERMANY

Delivery time : 3-5 DAYS

Supply capacity : 2200PCS

High quality Needle Roller Bearings Needle Roller And Cage Assemblies K45x53x20

Product details:

Bearing No.: K45x53x20

Brand: SDVV or as customer request

Material: Chrome steel (Gcr15), Stainless Steel

IDxODxW(mm): 45x53x20

Weight(kg): 0.055

Condition: New

Payment terms: T/T,L/C,Western Union,Paypal

Payment terms:

A: 100% T/T in advance for small orders

B: 30% TT in advance.70% against B/L

C: western union

D: 100% LC at sight


Technical Drawing:


Fw45  mm 

Ew53  mm 

Bc20  mm 

m55  g 

Cr39000  N 

Basic dynamic load rating, radial
C0r67000  N 

Basic static load rating, radial
Cur8700  N 

Fatigue limit load, radial
nG10000  1/min 

Limiting speed
nB5500  1/min 

Reference speed

Product description:

K type known as "needle roller and cage assembly," no bearing inner and outer rings of the structure. It is the smallest radial bearing a class of bearings. 

The shaft surface and bearing surface to work as a raceway, therefore, requested with matching hardness and dimensional accuracy of the shaft surface.

The bearing surface shall be substantially meet the corresponding technical requirements bearing raceways.


Needle Roller Bearings needle roller and cage assemblies are widely used in textile machinery, CNC machine, metallurgical machinery and printing machinery and other machinery and equipment.


a) How to prolong service life of bearings?

     Accurate installation and using,alignment,timely monitor,re lubrication etc.

b) Reason for bearings failure?

    Usually is incorrect using method,pollution,improper use of lubricant,damage happened in installation and handing,also including installation error.according to the traces can know the reason why is failure.

c) Do you offer free samples?

   Yes, free samples can be supplied to distributors and wholesalers, however customers should bear freight.

d) How to choose bearings?

Analyse mechanical device and use conditions.clear the requiremment of type of bearings,select distribution way of bearings.selet dimensions of bearings,select installation method of bearings.


Packaging & Shipping


  1. Industrial packaging: plastic bag/plastic tube + kraft paper + carton + plywood pallets
    2. Commercial packing: 1pc/plastic bag + color box + carton + plywood pallets
    3. As the clients' requirement


1). If quantity is not very big, we will send you by UPS,DHL,FEDEX,OR EMS. Tracking number will be advised after delivery.

2). If order is big, we will advise you use Air Freight or Sea Freight.

SUN BEARINGS GROUP CO. LTD have complete process for the production and quality assurance to make sure our products can meet your requirement. We are committed to be responsible for each set of bearings and industrial products sold to our clients. 

If any question about our bearing price, delivery and quality, welcome to contact me to talk more!




Phone/Whatsappno.: 008613606376835

Skype: hk-bearing

Please feel free to give your inquiry in the form below. We will reply you in 24 hours.