| Part Number | 31309 |
| Type | Bearing |
| System of Measurement | Metric |
| Bearing Type | Roller |
| Roller Bearing Type | Tapered Roller |
| For Load Direction | Combined Radial and Thrust |
| Construction | Single Row |
| Seal Type | Open |
| Cups Type | Standard |
| Series | 31309M |
| Bore Dia | 45 mm |
| Bore Dia Tolerance | -0.012mm to 0 |
| Outer Dia | 100 mm |
| Outer Dia Tolerance | -0.018mm to 0 |
| Cone Width | 25 mm |
| Cone Width Tolerance | -0.1mm to 0 |
| Cup Width | 18 mm |
| Cup Width Tolerance | -0.2mm to 0 |
| Width | 27.25 mm |
| Width Tolerance | +0.2mm to 0 |
| Cone Backface ToClear Radius | 2.03 mm |
| Cup Backface ToClear Radius | 1.52 mm |
| Cone Frontface Backing Diameter | 56 mm |
| Cone Backface Backing Diameter | 67 mm |
| Cup Frontface Backing Diameter | 95.5 mm |
| Cup Backface Backing Diameter | 85.00 mm |
| Cage Cone Frontface Clearance | 4.3 mm |
| Cage Cone Backface Clearance | 4.8 mm |
| Effective Center Location | 4.3 mm |
| Ring Material | 52100 Chrome Steel |
| Roller Material | 52100 Chrome Steel |
| Cage Material | Steel |
| Dynamic Radial Load | 28125 lbf |
| Static Radial Load | 25425 lbf |
| Dynamic Radial Rating(90 Million Revolutions)(C90) | 7312.5 lbf |
| Dynamic Thrust Rating(90 Million Revolutions)(Ca90) | 10327.5 lbf |
| Lubrication | Required |
| Temperature Range | -30° to 110 °C |
| ABEC Rating | ABEC-1 |
| Radial Clearance | Standard (Available in C3/C4/C5) |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 1.98 lb |
31309 TS (Single Row Tapered Roller Bearings) (Metric) consist of a tapered inner ring assembly and an outer ring. 31309 bore dia is 45 mm. Its out dia is 100 mm. 31309 roller material is Roller_Material. Its seal type is Seal_Bearing. The 31309 TS (Single Row Tapered Roller Bearings) (Metric) can bear both radial and axial loads with ease and provides low friction during operation even under the most severe conditions.
Mining machines, rolling mills, metallurgy, hydraulic generators, vertical generators, propeller shafts for ships, tower cranes, extruders, gear systems and transmissions, transport vehicles, port tower crane equipment, machine tool spindles, gear reducers, automobile drives, Aircraft wheels, agricultural wheels, tensioning rollers, rakes, construction and mining equipment, railway axles – etc.
Several factors must be considered for choosing tapered roller bearings. These factors include the roller material, design, shields and seals, cage, Annual Bearing Engineering Committee (ABEC) grade, radial clearance, and lubricant, etc.
Aubearing is an ISO certified Chinese bearing manufacturer and supplier. Competitive prices, 1,200,000+ SKU inventory, including internationally renowned brands such as SKF, Timken, Schaeffler (FAG, INA), NSK, KOYO, NTN, McGill, etc. Aubearing has invested in 300+ equipment, heat treatment facilities, lathes, grinders, milling machines, bearing production lines, CMMs, metallographic testers, etc. Leading Time<7 Days, MOQ=1.
Various types of ball bearings and roller bearings, size range: 1mm-2000mm. Including thin section bearings (KAYDON equivalents and 67, 68, 69 series), ceramic bearings, stainless steel bearings, deep groove ball bearings, angular contact bearings, thrust ball bearings, spherical roller bearings, cylindrical roller bearings, needle roller bearings, tapered roller bearings, precision crossed roller bearings, bushings (sleeve bearings), linear bearings, automotive wheel hub bearings and corresponding inch series.
Customization options: material (Gcr15, silicon nitride, silicon carbide, zirconium oxide, aluminum oxide, stainless steel 304, 316, 420, 440, PTFE\PEEK\nylon and other plastics), cage (brass, stamping steel, retainer), lubrication (lubricating oil, grease, high temperature resistance), clearance (C2\CN\C3\C4\C5), seal (nitrile rubber, silicone rubber, fluororubber, polypropylene rubber), shielding, etc.
