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 6311LLBC3/L627 General Purpose Radial Ball Bearing - General Purpose Radial Ball Bearings
NTNGeneral Purpose Radial Ball Bearings

NTN 6311LLBC3/L627 General Purpose Radial Ball Bearing

The NTN 6311 is a metric general purpose radial ball bearing with a 55 mm bore, 120 mm OD, and 29 mm width. It features double non-contact seals and is identified by bearing industry number 6311 and manufacturer part…

SKU 3G-OTH-102011

Also listed as: 6311LLBC3L627 · 6311LLBC3 L627 · 6311LLBC3-L627

Brand
NTN
Item
6311LLBC3/L627 General Purpose Radial Ball Bearing
Category
General Purpose 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
6311LLBC3/L627
Type
Dbl Sealed, Non-Contact Seal
Bore
55 mm
OD
120 mm
Wd
29 mm
System of Measurement
Metric
Bearing Industry Number
6311

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 6311 is a metric general purpose radial ball bearing with a 55 mm bore, 120 mm OD, and 29 mm width. It features double non-contact seals and is identified by bearing industry number 6311 and manufacturer part number 6311LLBC3/L627.

Frequently Asked Questions

What is the NTN 6311 radial ball bearing used for?

The NTN 6311 is a general purpose radial ball bearing designed for moderate radial and axial loads in industrial machinery such as pumps, gearboxes, conveyors, and electric motors. Its double non-contact seals protect against contaminants while reducing friction, making it suitable for applications requiring reliable, low-maintenance operation.

What are the specifications of the NTN 6311 bearing?

The NTN 6311 is a metric bearing with a 55 mm bore, 120 mm OD, and 29 mm width. It uses double non-contact seals (LLB) and has a C3 internal clearance. The bearing industry number is 6311, and the manufacturer part number is 6311LLBC3/L627. It is designed for general purpose radial load applications.

Where to buy the NTN 6311 bearing worldwide?

You can source the NTN 6311 bearing through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine NTN bearings to support your maintenance and production needs.

How to select the correct NTN 6311 bearing for an application?

To select the NTN 6311, verify the shaft diameter (55 mm bore), housing bore (120 mm OD), and width (29 mm). Confirm the required seal type—double non-contact seals suit clean environments. Check the C3 clearance for applications with temperature variations or press fits. Always match the bearing industry number 6311 to ensure proper fit and performance.

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 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
Metric radial ball bearing with 50 mm bore, 110 mm outer diameter, and 27 mm width. Double-sealed, non-contact seal design reduces friction while protecting against contaminants. Suitable for moderate-speed applications requiring radial load support, such as electric motors, pumps, gearboxes, and conveyors
NTN
Metric radial ball bearing with 50 mm bore, 110 mm outer diameter, and 27 mm width. Double-sealed, non-contact seal design reduces friction while protecting against contaminants. Suitable for moderate-speed applications requiring radial load support, such as electric motors, pumps, gearboxes, and conveyors
Metric radial ball bearing with 60 mm bore, 110 mm OD, and 22 mm width. Features double non-contact seals to reduce friction and exclude contaminants. Suitable for moderate-speed applications requiring radial load support, such as electric motors, pumps, gearboxes, and conveyors
NTN
Metric radial ball bearing with 60 mm bore, 110 mm OD, and 22 mm width. Features double non-contact seals to reduce friction and exclude contaminants. Suitable for moderate-speed applications requiring radial load support, such as electric motors, pumps, gearboxes, and conveyors
Metric radial ball bearing with 45 mm bore, 85 mm outer diameter, and 19 mm width. Double-sealed with non-contact seals to reduce friction and exclude contaminants. Suitable for moderate-speed, moderate-load applications such as electric motors, pumps, conveyors, and gearboxes
NTN
Metric radial ball bearing with 45 mm bore, 85 mm outer diameter, and 19 mm width. Double-sealed with non-contact seals to reduce friction and exclude contaminants. Suitable for moderate-speed, moderate-load applications such as electric motors, pumps, conveyors, and gearboxes
Metric radial ball bearing with 55 mm bore, 100 mm outer diameter, and 21 mm width. Double non-contact seals protect against contaminants while reducing friction. C3 internal clearance accommodates thermal expansion. Suitable for moderate-speed and moderate-load machinery such as electric motors, pumps, conveyors, and gearboxes
NTN
Metric radial ball bearing with 55 mm bore, 100 mm outer diameter, and 21 mm width. Double non-contact seals protect against contaminants while reducing friction. C3 internal clearance accommodates thermal expansion. Suitable for moderate-speed and moderate-load machinery such as electric motors, pumps, conveyors, and gearboxes
This NTN radial ball bearing features a double-sealed, non-contact seal design to protect against contaminants while minimizing friction. With a 12 mm bore, 32 mm outer diameter, and 10 mm width, it is suitable for moderate-speed applications in industrial machinery such as electric motors, pumps, gearboxes, and conveyor systems
NTN
This NTN radial ball bearing features a double-sealed, non-contact seal design to protect against contaminants while minimizing friction. With a 12 mm bore, 32 mm outer diameter, and 10 mm width, it is suitable for moderate-speed applications in industrial machinery such as electric motors, pumps, gearboxes, and conveyor systems
Metric radial ball bearing with 50 mm bore, 90 mm outer diameter, and 20 mm width. Double-sealed with non-contact seals and C3 internal clearance. Suitable for moderate-speed applications in industrial machinery such as electric motors, pumps, gearboxes, and conveyors
NTN
Metric radial ball bearing with 50 mm bore, 90 mm outer diameter, and 20 mm width. Double-sealed with non-contact seals and C3 internal clearance. Suitable for moderate-speed applications in industrial machinery such as electric motors, pumps, gearboxes, and conveyors

More from NTN

View all NTN parts →
Metric radial ball bearing with 10 mm bore, 30 mm OD, and 9 mm width. Double non-contact seals reduce contaminant ingress and friction. Suitable for moderate-speed rotary motion in equipment such as electric motors, pumps, conveyors, and gearboxes
NTN
Metric radial ball bearing with 10 mm bore, 30 mm OD, and 9 mm width. Double non-contact seals reduce contaminant ingress and friction. Suitable for moderate-speed rotary motion in equipment such as electric motors, pumps, conveyors, and gearboxes
This NTN radial ball bearing features a double-sealed, non-contact seal design to reduce friction and protect against contaminants. With a 60 mm bore, 130 mm outer diameter, and 31 mm width, it is suitable for moderate-speed applications in industrial machinery such as electric motors, pumps, gearboxes, and conveyors
NTN
This NTN radial ball bearing features a double-sealed, non-contact seal design to reduce friction and protect against contaminants. With a 60 mm bore, 130 mm outer diameter, and 31 mm width, it is suitable for moderate-speed applications in industrial machinery such as electric motors, pumps, gearboxes, and conveyors
Metric radial ball bearing with 17 mm bore, 35 mm OD, and 10 mm width. Features double-sealed, non-contact seals and C3 internal clearance. Suitable for applications such as electric motors, pumps, conveyors, and industrial machinery where moderate radial and axial loads occur
NTN
Metric radial ball bearing with 17 mm bore, 35 mm OD, and 10 mm width. Features double-sealed, non-contact seals and C3 internal clearance. Suitable for applications such as electric motors, pumps, conveyors, and industrial machinery where moderate radial and axial loads occur
Metric radial ball bearing with 15 mm bore, 32 mm OD, and 9 mm width. Double sealed with non-contact seals for contamination resistance. Suitable for moderate radial and axial loads in electric motors, pumps, conveyors, and gearboxes
NTN
Metric radial ball bearing with 15 mm bore, 32 mm OD, and 9 mm width. Double sealed with non-contact seals for contamination resistance. Suitable for moderate radial and axial loads in electric motors, pumps, conveyors, and gearboxes
Metric radial ball bearing with 30 mm bore, 62 mm outer diameter, and 16 mm width. Features double-sealed, non-contact seals for lubricant retention and contamination exclusion. Suitable for radial load support in moderate-speed applications such as electric motors, pumps, and conveyors
NTN
Metric radial ball bearing with 30 mm bore, 62 mm outer diameter, and 16 mm width. Features double-sealed, non-contact seals for lubricant retention and contamination exclusion. Suitable for radial load support in moderate-speed applications such as electric motors, pumps, and conveyors
Metric radial ball bearing with 40 mm bore, 90 mm OD, and 23 mm width. Double non-contact seals reduce friction while protecting against contaminants. Suitable for moderate-speed applications such as electric motors, pumps, gearboxes, and conveyor systems
NTN
Metric radial ball bearing with 40 mm bore, 90 mm OD, and 23 mm width. Double non-contact seals reduce friction while protecting against contaminants. Suitable for moderate-speed applications such as electric motors, pumps, gearboxes, and conveyor systems
Metric radial ball bearing with 20 mm bore, 47 mm outer diameter, and 14 mm width. Double non-contact seals retain lubricant and exclude contaminants. C3 internal clearance accommodates thermal expansion. Suitable for moderate-speed applications such as electric motors, pumps, gearboxes, and conveyor systems
NTN
Metric radial ball bearing with 20 mm bore, 47 mm outer diameter, and 14 mm width. Double non-contact seals retain lubricant and exclude contaminants. C3 internal clearance accommodates thermal expansion. Suitable for moderate-speed applications such as electric motors, pumps, gearboxes, and conveyor systems
Metric radial ball bearing with 30 mm bore, 72 mm outer diameter, and 19 mm width. Features double non-contact seals and C3 internal clearance. Suitable for moderate-speed industrial applications such as electric motors, pumps, gearboxes, and conveyor systems requiring radial load support
NTN
Metric radial ball bearing with 30 mm bore, 72 mm outer diameter, and 19 mm width. Features double non-contact seals and C3 internal clearance. Suitable for moderate-speed industrial applications such as electric motors, pumps, gearboxes, and conveyor systems requiring radial load support