
INA SK112-312-KTT-L402/70 y-bearing (insert bearing)
- Brand
- INA
- Category
- Bearings
- Subcategory
- Y-bearing (insert bearing)
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Description
INA SK112-312-KTT-L402/70 belongs to y-bearing (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 SK112-312-KTT-L402/70 and any equivalents.
The INA Y-bearing series SK KTT L is a sealed insert with a spherical outer ring, made to fit split or flanged housings and suit light drives running on commercially toleranced shafts. Set screw locking keeps the unit compact, and the contact seals help it stand up in equipment that runs continuously. MR Industrial Accessories supplies this line and can help you match the right variant to your shaft and housing.
Reading the part number helps you order correctly. The SK block identifies a Y-bearing insert with a spherical outer ring and set screw locking. In a reference such as SK112-312-KTT-L402/70, the digits that follow point to shaft size and design variant. KTT tells you the seal style: contact seals that keep out dust and moisture. The L stands for a specific execution in the series, and the trailing numbers finish the mounting definition. Send the full number exactly as it appears on the equipment when you ask for a quote.
These inserts appear in belt conveyors, packaging lines, bucket elevators, mixers and industrial fans. Food processing plants, meatpacking operations, flour mills, aggregate sites and packaging operations use them, as do material handling systems and farm machinery. Because they are inserts, replacement is straightforward: they seat in standard split or flanged housings, which shortens downtime when a whole unit has to be swapped out.
Selection comes down to shaft diameter, housing style and the environment. Choose KTT sealing for dusty or damp conditions, and check whether extra protection is needed if washdowns are frequent. Set screws must be tightened to the recommended torque on a shaft with the right tolerance. Factory grease usually lasts the service life, though severe duty may call for replenishment. Align the housing properly and watch internal clearance to avoid parasitic loads and early failure.
Interchange between manufacturers is possible by shaft diameter, width and locking method, but suffixes do not always line up. A contact-sealed insert is not a drop-in for a simple-sealed one unless you confirm the protection level required. INA, FAG and other European series often share basic dimensions, yet locking and sealing can differ. Validate the complete part number and the operating conditions before you substitute anything.
For this INA Y-bearing, message us on WhatsApp with the part number SK112-312-KTT-L402/70 or the one shown on your machine. MR Industrial Accessories will confirm the variant and prepare your quote. We can also point you to compatible housings, seals and lubricants so the replacement fits right.
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 KTT suffix mean on this Y-bearing?
- KTT indicates reinforced contact sealing, with seals that block dust, water and contaminants. It is common in demanding industrial settings and differs from simple or open sealing.
- How do I choose the right INA Y-bearing for my equipment?
- You need the shaft diameter, housing type and working conditions. With the complete insert part number or a photo of the identification tag, we can confirm the exact variant and quote it.
- Is this insert compatible with housings from other brands?
- Y-bearings generally interchange by shaft and width dimensions, but locking and sealing systems can vary between manufacturers. Always verify dimensions and locking type before replacing.

