Cross-brand designation analysis
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Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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One base designation across loaded brands
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Dimensions differ
“30344” across 2 loaded brands
The base designation is shared, but the loaded boundary dimensions do not agree. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | FAG30344-DF-A570-620220 × 460 × 194 mm | KOYO30344220 × 460 × 88 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | KOYO |
| Designation | 30344-DF-A570-620 | 30344 |
| Product family | — | Single-row / Metric series |
| Detailed type | Tapered roller bearing set | Tapered roller bearings |
| Series | 30344 | — |
| Bore diameterd | 220 mm | 220 mm |
| Outside diameterD | 460 mm | 460 mm |
| WidthB | 194 mm | 88 mm |
| Basic dynamic load ratingC | 2470 kN | 1570 kN |
| Basic static load ratingC0 | 3750 kN | 1680 kN |
| Fatigue load limitPu | 375 kN | 181 kN |
| Reference speednref | 850 r/min | — |
| Limiting speednG | 1560 r/min | 730 r/min |
| Mass≈m | 143.6 kg | 69 kg |
| Precision class | PN — Normal (ISO 492:2023) | — |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | — |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 200 °C | — |
| Calculation factors | ||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | 0.35 | — |
| Dynamic axial load factorY1 | 1.96 | — |
| Dynamic axial load factorY2 | 2.91 | — |
| Static axial load factorY0 | 1.91 | — |
| Capabilities & suitability | ||
| Radial load capacity | Yes | — |
| Axial load capacity in one direction | Yes | — |
| Axial load capacity in both directions | Yes | — |
| Suitable for grease lubrication | Yes | — |
| Suitable for oil lubrication | Yes | — |
| Unsealed design | Yes | — |
| Classification | ||
| Official Category Path | — | Tapered roller bearings - Single-row - Metric series |
| Official Classification 1 | — | Tapered roller bearings / Single-row / Metric series |
| Dimensions | ||
| Minimum chamfer dimension of outer ring back facer3, 4 min | 5 mm | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 0.197 in | — |
| Width of spacerA | 48 mm | — |
| Width of spacerA | 1.89 in | — |
| Main Dimensions & Performance Data | ||
| Inner ring total width2B | 176 mm | — |
| Inner ring total width2B | 6.929 in | — |
| Outer ring total width2T | 194 mm | — |
| Outer ring total width2T | 7.638 in | — |
| Basic dynamic load rating, radialCr | 2,470,000 N | — |
| Basic dynamic load rating, radialCr | 555,305.755 lbf | — |
| Basic static load rating, radialC0r | 3,750,000 N | — |
| Basic static load rating, radialC0r | 843,075.54 lbf | — |
| Fatigue load limit, radialCur | 375,000 N | — |
| Fatigue load limit, radialCur | 84,307.554 lbf | — |
| Thermal speed ratingnϑr | 850 1/min | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 2293081 | — |
| Official Class Key | — | 050-010-010 |
| Base Type | 30344 | — |
| Product Line Id | 70 | — |
| Base product | 2305091051 | — |
| Mounting dimensions | ||
| Maximum diameter of shaft shoulderda max | 274 mm | — |
| Maximum diameter of shaft shoulderda max | 10.787 in | — |
| Minimum diameter of housing shoulderDa min | 392 mm | — |
| Minimum diameter of housing shoulderDa min | 15.433 in | — |
| Maximum diameter of housing shoulderDa max | 437 mm | — |
| Maximum diameter of housing shoulderDa max | 17.205 in | — |
| Minimum axial spaceCa min | 10 mm | — |
| Minimum axial spaceCa min | 0.394 in | — |
| Maximum fillet radius of housingrb max | 5 mm | — |
| Maximum fillet radius of housingrb max | 0.197 in | — |
| Product characteristics | ||
| Tolerance classPN | Normal (ISO 492:2023) | — |
| Heat treatment | Standard | — |
| Axial internal clearanceA570-620 | Axial internal clearance between 570 and 620 µm | — |
| Quality level | Standard | — |
| Matched arrangementF | X arrangement | — |
| Number of rows2 | Double-row design | — |
| Product Identity | ||
| Construction | Tapered roller bearing set 303..-DF, X-arrangement | — |
| Short Description | Tapered roller bearing set | — |
| Technical Data | ||
| d | — | 460 mm |
| Bore Diameter (D) | 220 mm | — |
| T | — | 97 mm |
| Outside Diameter (D) | 460 mm | — |
| B | — | 88 mm |
| Width Of Bearing Outside (2T) | 194 mm | — |
| C | — | 73 mm |
| Basic Dynamic Load Rating, Radial (Cr) | 2,470,000 N | — |
| R(Min.) | — | 6 mm |
| Basic Static Load Rating, Radial (C0R) | 3,750,000 N | — |
| R1(Min.) | — | 5 mm |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Basic Load Ratings : Cr | — | 1570 kN |
| Limiting Speed (Ng) | 1,560 1/min | — |
| Basic Load Ratings : C0R | — | 1680 kN |
| Operating Temperature Max. (Tmax) | 200 °C | — |
| Fatigue Load Limit : Cu | — | 181 kN |
| Reference Speed (Nϑr) | 850 1/min | — |
| Limiting Speeds(Grease Lub.) | — | 730 min-1 |
| Maximum Fillet Radius Of Housing (Rb Max) | 5 mm | — |
| Limiting Speeds(Oil Lub.) | — | 980 min-1 |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 5 mm | — |
| Load Center Spread : A | — | 84.6 mm |
| Minimum Diameter Of Housing Shoulder (Da Min) | 392 mm | — |
| Constant E | — | 0.35 |
| Fatigue Load Limit, Radial (Cur) | 375,000 N | — |
| Axial Load Factors : Y1 | — | 1.73 |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.35 | — |
| Axial Load Factors : Y0 | — | 0.95 |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 274 mm | — |
| Da(Min.) | — | 386 mm |
| Dynamic Axial Load Factor (Y1) | 1.96 | — |
| Db(Max.) | — | 282 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | 437 mm | — |
| Da(Max.) | — | 438 mm |
| Width Of Spacer (A) | 48 mm | — |
| Db(Min.) | — | 420 mm |
| Dynamic Axial Load Factor (Y2) | 2.91 | — |
| Sa(Min.) | — | 12 mm |
| Width Of Bearing Inside (B4) | 176 mm | — |
| Sb(Min.) | — | 23 mm |
| Minimum Axial Space (Ca Min) | 10 mm | — |
| Ra(Max.) | — | 5 mm |
| Static Axial Load Factor (Y0) | 1.91 | — |
| Rb(Max.) | — | 4 mm |
| Mass(Refer.) | — | 69.0 kg |
| Temperature range | ||
| Operating temperature min.Tmin | -30 °C | — |
| Operating temperature min.Tmin | -22 °F | — |
| Operating temperature max.Tmax | 200 °C | — |
| Operating temperature max.Tmax | 392 °F | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.