Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
NTN R18ZZ/2AS High-Temperature Radial Ball Bearing - High-Temperature Radial Ball Bearings
NTNHigh-Temperature Radial Ball Bearings

NTN R18ZZ/2AS High-Temperature Radial Ball Bearing

The NTN R18 is an inch-system high-temperature radial ball bearing, double-shielded, with a 1 1/8 in bore, 2 1/8 in OD, and 0.5 in width. It features an alloy steel ring and is identified by bearing industry number…

SKU 3G-OTH-100523

Also listed as: R18ZZ2AS · R18ZZ 2AS · R18ZZ-2AS

Brand
NTN
Item
R18ZZ/2AS High-Temperature Radial Ball Bearing
Category
High-Temperature Radial Ball Bearings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

NTN
Manufacturer Part Number
R18ZZ/2AS
Type
Dbl Shield, Alloy Steel Ring
Bore
1 1/8 in
OD
2 1/8 in
Wd
0.5 in
System of Measurement
Inch
Bearing Industry Number
R18

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The NTN R18 is an inch-system high-temperature radial ball bearing, double-shielded, with a 1 1/8 in bore, 2 1/8 in OD, and 0.5 in width. It features an alloy steel ring and is identified by bearing industry number R18 and manufacturer part number R18ZZ/2AS.

Frequently Asked Questions

What is the NTN R18ZZ/2AS radial ball bearing used for?

The NTN R18ZZ/2AS is a high-temperature radial ball bearing designed for applications requiring reliable operation under elevated temperatures. It is commonly used in industrial machinery, conveyors, and HVAC equipment where double-shielded protection and inch-system dimensions are needed.

What are the specifications of the NTN R18ZZ/2AS bearing?

The NTN R18ZZ/2AS is an inch-system radial ball bearing with a 1 1/8 in bore, 2 1/8 in OD, and 0.5 in width. It features double shields, an alloy steel ring, and bearing industry number R18. This high-temperature bearing is manufactured by NTN.

Where to buy NTN R18ZZ/2AS bearings worldwide?

3G Electric supplies the NTN R18ZZ/2AS bearing worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this high-temperature radial ball bearing.

How to select the correct NTN R18ZZ/2AS bearing for an application?

To select the NTN R18ZZ/2AS bearing, verify your shaft diameter matches the 1 1/8 in bore and housing fits the 2 1/8 in OD. Confirm the 0.5 in width and double-shield design suit your load and temperature requirements. Consult NTN's catalog for speed and load ratings.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
NTN Radial Ball Bearing: R20, Dbl Shield, 1 1/4 in Bore, 2 1/4 in OD, 0.5 in Wd, Alloy Steel Ring (MPN R20ZZ/2AS)
NTN
NTN Radial Ball Bearing: R20, Dbl Shield, 1 1/4 in Bore, 2 1/4 in OD, 0.5 in Wd, Alloy Steel Ring (MPN R20ZZ/2AS)
NTN Radial Ball Bearing: R20, Dbl Sealed, Contact Seal, 1 1/4 in Bore, 2 1/4 in OD, 0.5 in Wd (MPN R20LL/2AS)
NTN
NTN Radial Ball Bearing: R20, Dbl Sealed, Contact Seal, 1 1/4 in Bore, 2 1/4 in OD, 0.5 in Wd (MPN R20LL/2AS)
NTN Radial Ball Bearing: R4, Dbl Sealed, Contact Seal, 1/4 in Bore, 5/8 in OD, 0.196 in Wd (MPN R4LL/2AS)
NTN
NTN Radial Ball Bearing: R4, Dbl Sealed, Contact Seal, 1/4 in Bore, 5/8 in OD, 0.196 in Wd (MPN R4LL/2AS)
This inch-system radial ball bearing features a 1/4 in bore, 5/8 in OD, and 0.196 in width. It is constructed with an alloy steel ring and double shields to retain grease and exclude contaminants. Suitable for moderate-speed applications in industrial equipment such as conveyors, pumps, and electric motors where maintenance access is limited
NTN
This inch-system radial ball bearing features a 1/4 in bore, 5/8 in OD, and 0.196 in width. It is constructed with an alloy steel ring and double shields to retain grease and exclude contaminants. Suitable for moderate-speed applications in industrial equipment such as conveyors, pumps, and electric motors where maintenance access is limited
Inch-system double-shielded radial ball bearing with 7/8 in bore, 1 7/8 in OD, and 0.5 in width. Alloy steel ring construction. Suitable for applications requiring operation in elevated thermal environments, such as industrial machinery, conveyors, and HVAC equipment
NTN
Inch-system double-shielded radial ball bearing with 7/8 in bore, 1 7/8 in OD, and 0.5 in width. Alloy steel ring construction. Suitable for applications requiring operation in elevated thermal environments, such as industrial machinery, conveyors, and HVAC equipment
NTN Radial Ball Bearing: 628, Dbl Shield, 8 mm Bore, 24 mm OD, 8 mm Wd, Alloy Steel Ring (MPN 628ZZ/1K)
NTN
NTN Radial Ball Bearing: 628, Dbl Shield, 8 mm Bore, 24 mm OD, 8 mm Wd, Alloy Steel Ring (MPN 628ZZ/1K)

More from NTN

View all NTN parts →
Metric radial ball bearing with 25 mm bore, 52 mm OD, and 15 mm width. Double sealed with contact seal for protection. Designed for high-temperature applications up to 150 °C. Suitable for use in industrial equipment such as conveyors, fans, and pumps
NTN
Metric radial ball bearing with 25 mm bore, 52 mm OD, and 15 mm width. Double sealed with contact seal for protection. Designed for high-temperature applications up to 150 °C. Suitable for use in industrial equipment such as conveyors, fans, and pumps
Double-shielded inch-system radial ball bearing with 3/16 in bore, 1/2 in OD, and 0.196 in width. Alloy steel ring construction. Suitable for high-temperature applications in industrial machinery, conveyors, and HVAC equipment
NTN
Double-shielded inch-system radial ball bearing with 3/16 in bore, 1/2 in OD, and 0.196 in width. Alloy steel ring construction. Suitable for high-temperature applications in industrial machinery, conveyors, and HVAC equipment
Inch-system radial ball bearing with 1 1/8 in bore, 2 1/8 in OD, and 0.5 in width. Double-sealed with contact seals for contaminant protection and lubricant retention. Suitable for high-temperature applications in industrial machinery and processing equipment
NTN
Inch-system radial ball bearing with 1 1/8 in bore, 2 1/8 in OD, and 0.5 in width. Double-sealed with contact seals for contaminant protection and lubricant retention. Suitable for high-temperature applications in industrial machinery and processing equipment
Metric 6203 series radial ball bearing with 17 mm bore, 40 mm OD, and 12 mm width. Features double shields and an alloy steel ring for high-temperature service. Suitable for applications such as ovens, conveyors, and industrial fans where elevated heat and moderate speeds occur
NTN
Metric 6203 series radial ball bearing with 17 mm bore, 40 mm OD, and 12 mm width. Features double shields and an alloy steel ring for high-temperature service. Suitable for applications such as ovens, conveyors, and industrial fans where elevated heat and moderate speeds occur
Double-shielded radial ball bearing with alloy steel ring, designed for high-temperature environments. Bore: 5/16 in, OD: 22 mm, Width: 7 mm. Suitable for applications such as industrial ovens, kilns, and drying equipment where standard bearings may fail under elevated temperatures
NTN
Double-shielded radial ball bearing with alloy steel ring, designed for high-temperature environments. Bore: 5/16 in, OD: 22 mm, Width: 7 mm. Suitable for applications such as industrial ovens, kilns, and drying equipment where standard bearings may fail under elevated temperatures
Metric double-shielded radial ball bearing with 20 mm bore, 47 mm OD, 14 mm width. Alloy steel ring. Suitable for applications requiring heat resistance, such as industrial ovens, conveyors, and furnace fans
NTN
Metric double-shielded radial ball bearing with 20 mm bore, 47 mm OD, 14 mm width. Alloy steel ring. Suitable for applications requiring heat resistance, such as industrial ovens, conveyors, and furnace fans
Metric radial ball bearing with 40 mm bore, 80 mm OD, and 18 mm width. Features double contact seals for protection in elevated temperature environments. Suitable for industrial applications such as conveyors, fans, and pumps where reliable operation under heat is required
NTN
Metric radial ball bearing with 40 mm bore, 80 mm OD, and 18 mm width. Features double contact seals for protection in elevated temperature environments. Suitable for industrial applications such as conveyors, fans, and pumps where reliable operation under heat is required
Metric high-temperature radial ball bearing with 15 mm bore, 35 mm OD, and 11 mm width. Features double contact seals for contamination protection and lubrication retention. Suitable for applications such as conveyors, fans, pumps, and electric motors operating under thermal stress
NTN
Metric high-temperature radial ball bearing with 15 mm bore, 35 mm OD, and 11 mm width. Features double contact seals for contamination protection and lubrication retention. Suitable for applications such as conveyors, fans, pumps, and electric motors operating under thermal stress