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NTN EC-6308LLB deep groove ball bearing

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NTN EC-6308LLB deep groove ball bearing

Manufacturer part numberEC-6308LLBAlso known as: EC6308LLB · EC 6308LLB
Brand
NTN
Category
Bearings
Series
EC
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Description

NTN EC-6308LLB belongs to deep groove ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for EC-6308LLB and any equivalents.

When you need a single-row deep groove ball bearing that keeps grease in and contaminants out, the NTN EC-LLB series is a solid choice. These bearings handle moderate radial and axial loads in both directions and are common in electric motors, pumps, fans and light-duty transmissions. MR Industrial Accessories supplies this series and helps you match the right part number to your equipment.

The EC-LLB code tells you two things. EC denotes the medium-section deep groove ball bearing series, while LLB identifies the seal type: double contact lip. Take EC-6002LLB, EC-6003LLB or EC-6004LLB, for example. The middle digits (6002, 6003, 6004) set the bearing size within the series, which has a thin section. As that number grows, so do the bore and the load capacity. The LLB suffix keeps dust and moisture out and holds the factory grease in place.

You will find these bearings in low and medium power electric motors, centrifugal pumps, fans, small compressors, machine tools, conveyor belts and agricultural equipment. They also appear in household appliances and refrigeration units. Because of the double-lip seal, they work well in settings with moderate dust or moisture, where you want low maintenance and dependable operation.

Choosing the right bearing starts with shaft diameter, radial and axial loads, rotation speed and the surrounding environment. Go with the LLB seal when contamination is a concern. If the area is clean and you want less friction, an open or shielded version might be better. During mounting, keep the shaft and housing aligned, avoid hitting the rings and check that the fit is correct. The lubrication is built in and does not need to be replenished under normal conditions.

For equivalents, deep groove ball bearings from other brands can be swapped in if the dimensions and seal type line up. A bearing with a 2RS or DDU suffix is often similar to LLB because both have double lips, but tolerances and internal clearance can differ between manufacturers. Always confirm the technical specifications before replacing a part. If you are unsure, we can point you to a compatible alternative.

To get a quote on an NTN EC-LLB series bearing, send us the full part number or the measurements from your equipment via WhatsApp or email. We reply promptly and can suggest equivalents or help you choose the right replacement. MR Industrial Accessories serves industries and workshops across the United States and in several Latin American countries.

Dimensions

Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.

Frequently asked questions

What does the LLB suffix mean on an NTN bearing?
LLB means the bearing has double contact lip seals. These seals block contaminants and keep lubrication inside. It is NTN's own designation for this seal type.
Does this bearing come lubricated from the factory?
Yes, bearings with LLB seals are lubricated for life with high-quality grease. They do not need replenishment under normal operating conditions.
Can I replace a 2RS bearing with an LLB one?
Often yes, since both have double-lip seals. But tolerances and internal clearance may vary. Send us the original part number and we will help you find the right equivalent.
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