
NTN UC311-200D1 insert bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Y-bearing (insert bearing)
- Series
- UC3
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Tell us the quantity you need and request a quote by WhatsApp or email.
Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
NTN UC311-200D1 belongs to insert 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 UC311-200D1 and any equivalents.
The NTN UC series is a ball bearing with an extended inner ring that locks onto the shaft with set screws. It fits into split or solid housings, which makes mounting straightforward and replacement quick. Typical uses include conveyors, fans, mixers and farm equipment. MR Industrial Accessories LLC supplies this series to customers in the United States and Latin America.
The code tells you what you are holding. UC marks the insert bearing design with extended inner ring and set screw locking. The digits after UC relate to the shaft size and mounting style. A suffix such as D1 points to a particular seal and tolerance setup. When a hyphen appears, as in UC204-012D1, the number after the hyphen is an inch shaft dimension.
These bearings appear in many industrial settings. You will find them on conveyors in aggregate, food and logistics operations, on fans and air extractors, in balanced feed mixers, on seeders and harvesters, and in general transmission equipment. Because they mount in split or solid housings, maintenance is simpler and downtime is shorter.
Selection comes down to shaft diameter, housing type and working conditions. Sealing matters: the NTN UC series includes labyrinth or contact seal options that keep out dust and moisture. Check that shaft and housing are aligned, and apply lubrication that suits the speed and load. Tighten the set screws with a torque wrench to the recommended value so they do not work loose.
UC insert bearings from different brands are often interchangeable when the main dimensions and locking method match. For a replacement, compare shaft diameter, overall width, the distance between locking points and the sealing system. If anything is unclear, send us the original part code and we will point you to a compatible option. MR Industrial Accessories LLC quotes the exact code or size you need.
To request a quote, message us on WhatsApp or by email with the full code, such as UC204-012D1, or with your shaft and housing measurements. Our team replies promptly and can suggest equivalents or help you choose.
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 D1 suffix mean in UC bearings?
- The D1 suffix refers to a specific sealing and internal tolerance configuration. It is part of the NTN nomenclature and can differ by series. For the exact characteristics of your code, contact us on WhatsApp.
- How do I choose the UC insert bearing for my application?
- You need the shaft diameter, housing type and environmental conditions. Consider sealing, lubrication and alignment. Send us that data or the original part code and we will advise on the right model.
- Are NTN UC bearings compatible with other brands?
- UC insert bearings are often interchangeable between brands if the main dimensions and locking type match. When replacing, verify shaft diameter, width and distance between centers. We can help you find the equivalence.

