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NTN 7MC3-6311C3 Ceramic Insulated Radial Ball Bearing - Ceramic Insulated Radial Ball Bearings
NTNCeramic Insulated Radial Ball Bearings

NTN 7MC3-6311C3 Ceramic Insulated Radial Ball Bearing

The NTN Radial Ball Bearing: 6311 is a ceramic insulated radial ball bearing with a metric system of measurement. It features a 55 mm bore, 120 mm OD, and 29 mm width, with an alloy steel ring and Class 0 tolerance…

SKU 3G-OTH-100948

Also listed as: 7MC36311C3 · 7MC3 6311C3

Brand
NTN
Item
7MC3-6311C3 Ceramic Insulated Radial Ball Bearing
Part Number
7MC3-6311C3
Category
Ceramic Insulated Radial Ball Bearings
Available to Order
Also known as:7MC3-6311C3NTN
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Technical Specifications

NTN
Manufacturer Part Number
7MC3-6311C3
Type
Open, Alloy Steel Ring, Class 0
Bore
55 mm
OD
120 mm
Wd
29 mm
System of Measurement
Metric
Bearing Industry Number
6311

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

Product Description

The NTN Radial Ball Bearing: 6311 is a ceramic insulated radial ball bearing with a metric system of measurement. It features a 55 mm bore, 120 mm OD, and 29 mm width, with an alloy steel ring and Class 0 tolerance. The bearing industry number is 6311, and the manufacturer part number is 7MC3-6311C3.

Frequently Asked Questions

What is the NTN 6311 ceramic insulated radial ball bearing used for?

The NTN 6311 ceramic insulated radial ball bearing is used in electric motors and generators to prevent electrical pitting damage. Its ceramic coating blocks stray currents, extending equipment life in industrial applications like pumps, compressors, and conveyors.

What are the specifications of the NTN 6311 bearing?

The NTN 6311 bearing has a 55 mm bore, 120 mm OD, and 29 mm width. It is an open type with an alloy steel ring, Class 0 tolerance, and metric system of measurement. The bearing industry number is 6311, and the manufacturer part number is 7MC3-6311C3.

Where to buy the NTN 6311 bearing worldwide?

3G Electric supplies the NTN 6311 bearing worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this ceramic insulated radial ball bearing to your facility. Contact us for availability and lead time.

How to install the NTN 6311 ceramic insulated bearing?

Install the NTN 6311 bearing using a press fit on the shaft and housing, ensuring clean, dry surfaces. Avoid hammering directly on the bearing. Use proper alignment tools and apply grease compatible with ceramic coatings. Follow NTN's generic installation guidelines for best results.

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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