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NTN 7MC3-6330C3 Ceramic Insulated Radial Ball Bearing - Ceramic Insulated Radial Ball Bearings
NTNCeramic Insulated Radial Ball Bearings

NTN 7MC3-6330C3 Ceramic Insulated Radial Ball Bearing

The NTN 6330 is a metric ceramic insulated radial ball bearing with an open design, featuring a 150 mm bore, 320 mm OD, and 65 mm width. It is constructed with an alloy steel ring and is identified by manufacturer…

SKU 3G-OTH-100733

Also listed as: 7MC36330C3 · 7MC3 6330C3

Brand
NTN
Item
7MC3-6330C3 Ceramic Insulated Radial Ball Bearing
Part Number
7MC3-6330C3
Category
Ceramic Insulated Radial Ball Bearings
Available to Order
Also known as:7MC3-6330C3NTN
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Technical Specifications

NTN
Manufacturer Part Number
7MC3-6330C3
Type
Open, Alloy Steel Ring
Bore
150 mm
OD
320 mm
Wd
65 mm
System of Measurement
Metric
Bearing Industry Number
6330

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

Product Description

The NTN 6330 is a metric ceramic insulated radial ball bearing with an open design, featuring a 150 mm bore, 320 mm OD, and 65 mm width. It is constructed with an alloy steel ring and is identified by manufacturer part number 7MC3-6330C3.

Frequently Asked Questions

What is the NTN 6330 ceramic insulated radial ball bearing used for?

The NTN 6330 ceramic insulated radial ball bearing is used in electric motors and generators to prevent electrical pitting damage. Its ceramic coating on the outer or inner ring blocks stray currents, making it ideal for variable-frequency drive (VFD) applications in industrial machinery, pumps, and compressors.

What are the specifications of the NTN 6330 bearing?

The NTN 6330 is a metric ceramic insulated radial ball bearing with a 150 mm bore, 320 mm OD, and 65 mm width. It has an open design, an alloy steel ring, and manufacturer part number 7MC3-6330C3. The bearing industry number is 6330, and it is designed for high-voltage isolation.

Where to buy the NTN 6330 bearing worldwide?

You can source the NTN 6330 bearing worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine NTN bearings to customers across multiple industries.

How to select the correct NTN 6330 bearing for an application?

To select the correct NTN 6330 bearing, verify the shaft diameter (150 mm bore), housing bore (320 mm OD), and width (65 mm). Confirm the operating temperature and voltage conditions to ensure the ceramic insulation rating matches your motor or generator. Always cross-reference the manufacturer part number 7MC3-6330C3 for exact fit.

Used in

Common applications for NTN
Material handling conveyors — NTN UCPL-1.3/16M pillow block ball bearings with cast iron housing and set screw locking for shaft support.
Automotive wheel hubs — NTN tapered roller bearing assemblies like LM814849/LM814810 for combined radial and axial load handling.
Industrial gearboxes — NTN tapered roller bearing cones such as 4T-05062 with chrome steel cage for moderate-speed applications.
Agricultural machinery — NTN inch-system tapered roller bearing assemblies like LM29748/LM29710 for reliable operation in dusty environments.
Pumps and compressors — NTN metric tapered roller bearing assemblies such as 33213 with carbon steel rings for high radial and axial loads.
Power transmission equipment — NTN pillow block ball bearings with 1 3/16 in bore for supporting rotating shafts in belt drives.
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NTN Products

3G Electric supplies NTN ceramic insulated 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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