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NTN Radial Ball Bearing: RA3, Dbl Sealed, Contact Seal, 3/16 in Bore, 1/2 in OD - High-Temperature Radial Ball Bearings
NTNHigh-Temperature Radial Ball Bearings

NTN Radial Ball Bearing: RA3, Dbl Sealed, Contact Seal, 3/16 in Bore, 1/2 in OD

The NTN Radial Ball Bearing: RA3 is a high-temperature radial ball bearing from NTN, featuring a double-sealed contact seal design. It has a 3/16-inch bore, a 1/2-inch outer diameter, and a 0.196-inch width, with the…

SKU 3G-OTH-101322

Also listed as: RA3LLL627 · RA3LL L627 · RA3LL-L627

Brand
NTN
Item
Radial Ball Bearing: RA3, Dbl Sealed, Contact Seal, 3/16 in Bore, 1/2 in OD
Category
High-Temperature Radial Ball Bearings
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

NTN
Manufacturer Part Number
RA3LL/L627
Type
Dbl Sealed, Contact Seal
Bore
3/16 in
OD
1/2 in
Wd
0.196 in
System of Measurement
Inch
Bearing Industry Number
RA3

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

Product Description

The NTN Radial Ball Bearing: RA3 is a high-temperature radial ball bearing from NTN, featuring a double-sealed contact seal design. It has a 3/16-inch bore, a 1/2-inch outer diameter, and a 0.196-inch width, with the manufacturer part number RA3LL/L627. This inch-system bearing is identified by the bearing industry number RA3.

Frequently Asked Questions

What is the NTN RA3 radial ball bearing used for?

The NTN RA3 is a high-temperature radial ball bearing designed for applications requiring reliable operation in elevated heat environments. Its double-sealed contact seal protects against contaminants, making it suitable for industrial machinery, conveyors, and HVAC equipment where inch-system bearings are specified.

What are the specifications of the NTN RA3 bearing?

The NTN RA3 is an inch-system radial ball bearing with a 3/16 in bore, 1/2 in outer diameter, and 0.196 in width. It features a double-sealed contact seal design, bearing industry number RA3, and manufacturer part number RA3LL/L627. This NTN bearing is built for high-temperature service.

Where to buy the NTN RA3 bearing worldwide?

3G Electric supplies the NTN RA3 bearing worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this NTN high-temperature radial ball bearing for your application.

How to select the correct NTN RA3 bearing for my application?

To select the NTN RA3, verify your shaft diameter matches the 3/16 in bore and housing fits the 1/2 in OD. Confirm the 0.196 in width and double-sealed contact seal meet your load and temperature requirements. Consult NTN's catalog or contact 3G Electric for application guidance.

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 high-temperature 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
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This NTN radial ball bearing features a 15.875 mm bore, 40 mm outer diameter, and 12 mm width. It is equipped with double non-contact seals to reduce friction while protecting against contaminants. Suitable for applications requiring radial load support and moderate speed operation, such as industrial machinery, conveyors, and electric motors
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