K63X71X20 Needle Roller Bearing (Size: 63x71x20mm)

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K63X71X20

Bore Diameter:63 mm

Outside Diameter:71 mm

Width:20 mm

Weight:0.07 kg

Min. Order:1 Piece

The K63X71X20 bearing is a Needle Roller Bearings with an inner diameter of 63 mm , an outer diameter of 71 mm, a width of 20 mm. It typically uses Standard grade precision tolerances and Bearing Steel rings. Its dynamic radial rated load is approximately 41.4 (kN), its static radial rated load is approximately 79.4 (kN). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Application: Automotive Drivetrains, Industrial Robotics & Automation, Industrial Gearboxes, Medical Equipment

Dimensions:

Inside Diameter:

63 mm

Outside Diameter:

71 mm

Thickness:

20 mm

Weight:

0.07 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

41.4 (kN)

Static load Capacity, Radial (Cor):

79.4 (kN)

Reference speed (Grease rpm):

4400

Limiting speed (Oil rpm):

6700

Specifications:

HS Code:

8482990000

Structure:

Roller Bearing

Number of Rows:

Single

Demensions:

63x71x20

Brand:

Neutral Product

Precision Rating:

Standard

Bearing Material:

Bearing Steel

Roller Material:

Bearing Steel

Bore Type:

Cylindrical

Operating Temperature Range:

up to 120℃

System of Measurement:

Metric

Rolling Element:

Roller

Transaction Information:

Transport Package:

Standard Export Package

Shipping Ways:

by Sea or Air

Country of Origin:

China

Stock:

10000 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

K63X71X20 Needle Roller and Cage Assemblies, High Radial Load Carrying Capacity, High Stiffness, High Precision, Lowest Cross-Sectional Height Among Rolling Bearings, Accommodate Axial Displacement in Both Directions.

Size: 63x71x20mm

Bore Diameter (Fw): 63mm

Outer Diameter (Ew): 71mm

Width (Bc): 20mm

Bearing Material: Bearing Steel (Gcr15)

Working Temperature: Up to 120°C

HS Code: 8482990000

Radial Needle Roller and Cage Assemblies
Part No.	Fw	Ew	Bc	Load Ratings		Speed Ratings		Weight
				Dynamic (C)	Static (Co)	Grease	Oil
				kN		min-1		Kg
K63X71X20	63	71	20	41.4	79.4	4400	6700	0.07

K: Needle Roller and Cage Assembly

TN: Molded Cage of Reinforced Engineered Polymer

H: Hardened Steel Cage

F: Machined Cage

FH: Machined Cage, Case Hardened

FV: Machined Cage, Hardened and Tempered

ZW: Double Row

These assemblies are highly specialized and utilized across several major industries:

Automotive Drivetrains: Frequently used in constant mesh gearboxes, internal combustion engine connecting rods, and automotive planetary gears where space is severely limited but durability against high torque is essential.

Industrial Robotics & Automation: Employed in robotic arm pivot points and speed reducers to ensure accurate motion control and support high radial loads.

Industrial Gearboxes: Used to guide and support shafts in power transmission equipment, providing stability and precise rotational accuracy with a minimal footprint.

Medical Equipment: Integrated into applications that demand high precision and reliability, including dental handpieces and surgical instruments.

Needle roller and cage assemblies are self-contained, ready-to-mount bearings without inner and outer rings. In applications where the shaft and housing bore can serve as raceways, the assemblies can be used to create bearing arrangements that require minimal radial space. As the clearance of the bearing arrangement is only affected by the roller sorting and the finish of shaft and housing, very precise bearing arrangements can be achieved.

All the bearings we are offering are direct factory price, fast delivery, perfect quality. For more bearings, please feel free to mail us at [email protected] or contact us by Wechat or Whatsapp at +8618062246726.

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K63X71X20 Needle Roller Bearing (Size: 63x71x20mm)

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