# Rex MBR2103 Round Flange Cartridge Bracket 1-3/16" Bore 2000 Series Normal Duty Spherical Roller Bearing - MROSupply.com ***Rex MBR2103 round flange cartridge bracket, 2000 series normal duty, 1-3/16 in (30.16 mm) bore, cast iron housing, single setscrew locking collar, spring-loaded heavy contact lip seal.*** ## Product details: - Catalog number: 10406309 - SKU: 504202 - Price: ***$323.21*** Each - Shipping: ***FREE SHIPPING*** ON ORDERS OVER $100 - Typically Ships in: 1 day - Brand: [Rexnord](https://www.mrosupply.com/brands/rexnord/) - Category: - [Bearings](htts://www.mrosupply.com/bearings/) - Unit of measure: each - Weight: 4.800 lb - UPC: 698210671280 - Technicall support: contact supplier for technical support on 800-626-2120 ## Product images: - https://static.mrosupply.com/images/noimage.webp ## Product attributes; - Available end cap: DTC3 - Available End Cap: DTC3 - Available seal type: K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal - Available Seal Type: K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal - Bearing Brand: REX ROLLER BEARING - Bolt circle radius (in): 2 1/16 in - Bolt Circle Radius (in): 2 1/16 in - Bolt hole circle diameter (in): 4 1/8 in - Bolt Hole Circle Diameter (in): 4 1/8 in - Bolt Size (in): 1.1875 in - Bore length (in): 2 11/16 in - Bore Length (in): 2 11/16 in - Bore size (in): 1.1875 in - Bore Size (in): 1.1875 in - Cage Material: Engineered Polymer - Clearance: C3 STANDARD - Distance between bolt holes (in): 2 59/64 in - Distance Between Bolt Holes (in): 2 59/64 in - Distance from housing cast face to inner ring long hub face (in): 9/16 in - Distance from Housing Cast Face to Inner Ring Long Hub Face (in): 9/16 in - Distance from mounting surface to end of pilot end (in): 1 3/8 in - Distance from Mounting Surface to End of Pilot End (in): 1 3/8 in - Distance from mounting surface to outer most bearing face (in): 1 5/16 in - Distance from Mounting Surface to Outer Most Bearing Face (in): 1 5/16 in - Fixed vs. Expansion: Fixed - Foot Height (in): 0.44 - Grease Fitting Thread Size: 1/8 NPT - Height: 3.25 - Housing Cast Face to Outermost Bearing Face (in): 0.56 - Housing coating: Powder coated - Housing Coating: POWDER COATED - Housing construction: Solid - Housing Construction: Solid - Housing material: Cast iron - Housing Material: Cast Iron - Housing style: Flange block - Housing Style: Flange Block - Housing type: Flange, Cartridge - Housing Type: Flange, Cartridge - Insert: 2103U - Length: 5.50 - Length Through Bore (in): 2.69 - Locking collar outside diameter (in): 1 31/32 in - Locking Collar Outside Diameter (in): 1 31/32 in - Locking device kit: SC3 - Locking Device Kit: SC3 - Locking Type: Single Set Collar - Lubrication type: EXXON RONEX MP STD - Lubrication Type: EXXON RONEX MP STD - Maximum Speed (RPM): 3700 rpm - Maximum Temperature (C): 107 C - Maximum Temperature (F): 225 F - Microlock kit: ML2 - Microlock Kit: ML2 - Mounting bolt size (in): 3/8 in - Mounting Bolt Size (in): 3/8 in - Mounting pad height (in): 7/16 in - Mounting Pad Height (in): 7/16 in - Mounting Surface to End of Housing (in): 1.38 - Net Weight: 4.80 - Pilot depth (in): 3/4 in - Pilot Depth (in): 3/4 in - Pilot diameter (in): 3.375 in - Pilot Diameter (in): 3.375 in - Primary seal: Buna spring loaded lip seal - Primary Seal: BUNA SPRING LOADED LIP SEAL - Radial Dynamic Load Capacity (lb): 18850 lb - Radial Static Load Capacity (lb): 18300 lb - Retainer material: Engineered Polymer - Retainer Material: Engineered Polymer - Seal kit: MS3 - Seal Kit: MS3 - Seal type: Heavy Contact Seal - Seal Type: Heavy Contact Seal - Series: Flanged Cartridge Blocks - Setscrew torque (in-lbs): 185 in/lbs - Setscrew Torque (in-lbs): 185 in/lbs - Size code: 3 - Size Code: 3 - Unit of dimension: in - Unit of Dimension: IN - Vibration frequency fundamental train: 0.0068 cps - Vibration Frequency Fundamental Train: 0.0068 cps - Vibration frequency inner ring defect: 0.1280 cps - Vibration Frequency Inner Ring Defect: 0.1280 cps - Vibration frequency outer ring defect: 0.0877 cps - Vibration Frequency Outer Ring Defect: 0.0877 cps - Vibration frequency roller spin: 0.0424 cps - Vibration Frequency Roller Spin: 0.0424 cps - Volume: 0.332 - Volume unit: GLL - Volume Unit: GLL - Weight unit: LB - Width: 5.50 ## Product documents / software: - [Rex Mounted Roller Bearings Installation Instructions](https://documents.mrosupply.com/product_documents/23/63/2363892/6ddc7fe1403d4227d36d1cb21d07ffff0b45a555_lA7yTlb.pdf) - [Rex Mounted Roller Bearings Installation Instructions](https://documents.mrosupply.com/product_documents/85/76/857687/BR3-001_manual.pdf) - [Rexnord Bearings Catalog](https://documents.mrosupply.com/product_documents/58/93/5893723/5c878e5c94dc5c3d338a775129f99b4f092be791_xnS4NzU.pdf) - [Rexnord Bearings Catalog](https://documents.mrosupply.com/product_documents/85/80/858069/BR101-100EN_catalog.pdf) ## Product's reviews: - Excellent - very fast, very good!!! A+++ - Mechanic - Great service and fast shipping and great quality of product. - 1st timer - 1st purchase with MRO good product selection at best price. Will check in for my next purchase. - Jose - Really good customer service ## 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.