# SealMaster ER-12T Mounted Bearing Insert 3/4" Bore SKWEZLOC Concentric Lock Felt Seal - MROSupply.com ***SealMaster ER-12T is a 3/4" bore mounted bearing insert with SKWEZLOC concentric locking and felt seal. The 52100 steel ball bearing insert is designed for replacement in SealMaster pillow block, flange, and take-up housings.*** ## Product details: - Catalog number: 705572 - SKU: 2258110 - Price: ***$69.32*** Each - Shipping: ***FREE SHIPPING*** ON ORDERS OVER $100 - Typically Ships in: 1 day - Brand: [SealMaster](https://www.mrosupply.com/brands/sealmaster/) - Category: - [Inserts & Cartridges](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/inserts-cartridges/) - [Mounted Ball Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/) - [Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/) - [Bearings](htts://www.mrosupply.com/bearings/) - Unit of measure: each - Weight: 0.556 lb - UPC: 662461031186 - Technicall support: contact supplier for technical support on 800-626-2120 ## Product images: - https://static.mrosupply.com/images/noimage.webp ## Product attributes; - Ability to Relubricate: Yes - Bearing Insert Coating: Black Oxide Coated - Bore Shape: Straight - Cage Material: PPS - Centerline to Front Face (in): 0.875 - Collar OD (in): 1.188 - Duty: Standard - End Cap: No - Expansion: No - Grease Fitting Thread Size: 3/8-24 UNF X .31 - Height: 2.38 - Housing: Insert (ER Style) - I.D.: 0.75 - Inner Race Heat Treat Method: Zone-Hardened - Inner Race Length (in): 1.281 - Inner Race Profile: Wide Inner Ring - Inner Ring OD (in): 1.188 - Insert Material: 52100 Bearing Steel, Black Oxided - Internal Clearance: Standard - Length: 2.38 - Locking: Concentric - Lubrication Type: Lithium Complex NLGI 2 Grease - Max Operating Temperature (F): 220 - Maximum Speed (RPM): 10200 - Measure Unit: Inch - Misalignment Capability: None - Misalignment Type: Static Only - Outer Race OD (in): 1.85 - Outer Race Profile: Cylindrical - Outer Race Width (in): 0.625 - Outer Ring Land Profile: Tapered Lands - Overall Width (in): 1.281 - Platform: Gold Line Ball Bearing - Precision Rating: ABEC 1 - Radial Dynamic Load Capacity (lb): 2611 - Radial Static Load Capacity (lb): 1444 - Radius: 0.04 - Retainer Type: Land Riding Retainer - Rolling element: Ball Bearing - Seal: Felt Labyrinth Seal - Set Screw Thread: 3/8-24 UNF X .31 - Width: 1.44 ## Product documents / software: - [Catalog Page](https://documents.mrosupply.com/product_documents/ER/ER-12T/MCC12004E_Sec_G-108.pdf) - [Drawing](https://documents.mrosupply.com/product_documents/ER/ER-12T/ER-T.GIF) ## Alternate products to `SealMaster ER-12T Mounted Bearing Insert 3/4" Bore SKWEZLOC Concentric Lock Felt Seal - MROSupply.com`: - [SealMaster ER-16T (705573) is a 1" bore mounted bearing insert in the Gold Line. Features a 52100 bearing steel race with black oxide coating, SKWEZLOC concentric locking, and a felt-labyrinth seal. This ER-style insert replaces worn inserts in SealMaster pillow block and flange housings.](https://www.mrosupply.com/products/419945/as-markdown/) - [Dodge 070557 F4S-S2-307R four-bolt flange mounted spherical roller bearing with 2" bore, set screw locking, and cast iron housing. Features a greasable, sensor-ready design with a static load capacity of 81,500 lbf for heavy-duty industrial applications.](https://www.mrosupply.com/products/133526/as-markdown/) - [AMI SUE205-16 insert bearing unit with 1" (25.4mm) bore diameter. Features Accu-Loc concentric locking mechanism, wide inner ring design, and normal duty rating. Chrome steel insert construction for reliable performance in industrial mounting applications.](https://www.mrosupply.com/products/17353/as-markdown/) - [SealMaster ER-24T (705579) is a 1.5" bore mounted bearing insert from the Gold Line. It features a 52100 bearing steel race with black oxide coating, SKWEZLOC concentric locking, and a felt-labyrinth seal. This ER-style insert is designed for replacement in SealMaster pillow block and flange housings.](https://www.mrosupply.com/products/419956/as-markdown/) - [AMI SUE204-12 200 series insert bearing with 3/4" bore, Accu-Loc concentric locking collar, chrome steel construction, and wide inner ring design. Normal duty rating for standard industrial applications.](https://www.mrosupply.com/products/17412/as-markdown/) - [Dodge 128880 INS-DL-108 D-Lok ball bearing insert with 1-1/2" bore, 3.395" OD, and concentric collar locking for no shaft marring. Standard duty cast iron insert with DualGuard seals and flingers, designed for precise shaft alignment in general purpose applications. Relubricatable bearing steel construction.](https://www.mrosupply.com/products/781417/as-markdown/) - [SealMaster 705576 ER-20T is a 1-1/4" bore mounted bearing insert with SKWEZLOC concentric locking and felt seal. The insert features a 52100 steel ball bearing race for reliable performance in general industrial applications.](https://www.mrosupply.com/products/2258115/as-markdown/) - [AMI SUE208-24 Accu-Loc concentric locking insert with 1-1/2" (38.1mm) bore, wide inner ring, and chrome steel construction for normal duty applications. 200 series precision bearing component designed for reliable shaft support in mounted bearing assemblies.](https://www.mrosupply.com/products/15258/as-markdown/) ## Product's reviews: - Solutions - Fast service, and excellent competitive price. - Owner - Your shipment was quick and you have a great price on Sealmaster bearings. Your Gates and Browning Power Belts were higher than I expected. Great Service Great Price. We have to get right or get left in this market in this market. - Drum bearing - Very easy to order, arrived very quickly, We will be ordering more items from here in the future. - Excelent - excelent ## FAQ: - How do I choose the right type of bearing for my application?: Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.