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NTN Radial Ball Bearing: 63311, Dbl Sealed, Non-Contact Seal, 55 mm Bore, 120 mm OD - General Purpose Cartridge Radial Ball Bearings
NTNGeneral Purpose Cartridge Radial Ball Bearings

NTN Radial Ball Bearing: 63311, Dbl Sealed, Non-Contact Seal, 55 mm Bore, 120 mm OD

The NTN Radial Ball Bearing, model 63311, is a general purpose cartridge radial ball bearing with a metric system of measurement. It features a double-sealed, non-contact seal design, with a 55 mm bore, 120 mm outer…

SKU 3G-OTH-98463

Brand
NTN
Item
Radial Ball Bearing: 63311, Dbl Sealed, Non-Contact Seal, 55 mm Bore, 120 mm OD
Category
General Purpose Cartridge Radial Ball Bearings
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Technical Specifications

NTN
Manufacturer Part Number
63311LLBC3/L627
Type
Dbl Sealed, Non-Contact Seal
Bore
55 mm
OD
120 mm
Wd
49.2 mm
System of Measurement
Metric
Bearing Industry Number
63311
View Full Spec Sheet

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NTN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NTN Radial Ball Bearing, model 63311, is a general purpose cartridge radial ball bearing with a metric system of measurement. It features a double-sealed, non-contact seal design, with a 55 mm bore, 120 mm outer diameter, and 49.2 mm width (manufacturer part number 63311LLBC3/L627).

Frequently Asked Questions

What is the NTN 63311 radial ball bearing used for?

The NTN 63311 is a general purpose cartridge radial ball bearing used in industrial machinery such as pumps, compressors, conveyors, and electric motors. Its double-sealed, non-contact seal design protects against contaminants while reducing friction, making it suitable for moderate-speed, continuous-duty applications in manufacturing and processing plants.

What are the specifications of the NTN 63311LLBC3/L627 bearing?

The NTN 63311LLBC3/L627 is a metric radial ball bearing with a 55 mm bore, 120 mm outer diameter, and 49.2 mm width. It features double-sealed, non-contact seals and a C3 internal clearance. The bearing industry number is 63311, and it is designed for general purpose cartridge applications.

Where to buy NTN 63311 bearings worldwide?

You can source the NTN 63311 bearing from 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine NTN bearings to industrial buyers globally.

How to select the correct NTN radial ball bearing for an application?

To select the correct NTN radial ball bearing, match the bore, OD, and width to your shaft and housing dimensions. The 63311LLBC3/L627 has a 55 mm bore, 120 mm OD, and 49.2 mm width. Consider load ratings, speed requirements, and seal type—double-sealed non-contact suits moderate speeds and dirty environments. Always verify the C3 clearance for thermal expansion.

Used in

Common applications for NTN
Automotive driveline — NTN tapered roller bearing assemblies (e.g., 4T-30303) for differential and wheel hub applications
Conveyor systems — NTN 4-bolt flange bearings (e.g., UCF211-200D1) for idler rollers and take-up units
Machine tool spindles — NTN duplex angular contact bearings (e.g., ML7006CVDUJ74S) for high-speed precision rotation
Industrial fans — NTN high-temperature radial ball bearings (e.g., 6004FT150) for oven and dryer exhaust systems
Pump drives — NTN radial ball bearings (e.g., 6008LLBC3/L627) for electric motor and pump shaft support
Agricultural equipment — NTN tapered roller bearing cones (e.g., LM29748L) for gearbox and PTO shaft assemblies

NTN Products

3G Electric supplies NTN general purpose cartridge radial ball bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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