Cross-brand designation analysis
COMPARE / VERIFY
Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Dimensions verified
“32921” across 2 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | FAG32921105 × 145 × 25 mm | KOYO32921JR105 × 145 × 25 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | KOYO |
| Designation | 32921 | 32921JR |
| Product family | — | Single-row / Metric series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Bore diameterd | 105 mm | 105 mm |
| Outside diameterD | 145 mm | 145 mm |
| WidthB | 25 mm | 25 mm |
| Basic dynamic load ratingC | 128 kN | 160 kN |
| Basic static load ratingC0 | 217 kN | 224 kN |
| Fatigue load limitPu | 25.5 kN | 32.6 kN |
| Reference speednref | 2650 r/min | — |
| Limiting speednG | 4700 r/min | 2400 r/min |
| Mass≈m | 1.203 kg | 1.23 kg |
| Precision class | P6X — Class 6X (ISO 492:2023) | — |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | — |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 120 °C | — |
| Additional information | ||
| Comparative designation to ISO 10317 and ISO 355 | T2CC105 | — |
| Calculation factors | ||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | 0.34 | — |
| Dynamic axial load factorY | 1.75 | — |
| Static axial load factorY0 | 0.96 | — |
| Capabilities & suitability | ||
| Radial load capacity | Yes | — |
| Axial load capacity in one direction | 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 inner ring back facer1, 2 min | 1.5 mm | — |
| Minimum chamfer dimension of inner ring back facer1, 2 min | 0.059 in | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 1.5 mm | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 0.059 in | — |
| Distance between the apexes of the pressure conesa | 25 mm | — |
| Distance between the apexes of the pressure conesa | 0.984 in | — |
| Guidance rib diameter of inner ringd1 | 125 mm | — |
| Guidance rib diameter of inner ringd1 | 4.921 in | — |
| Main Dimensions & Performance Data | ||
| Width, inner ringB | 25 mm | — |
| Width, inner ringB | 0.984 in | — |
| Width, outer ringC | 20 mm | — |
| Width, outer ringC | 0.787 in | — |
| Width, totalT | 25 mm | — |
| Width, totalT | 0.984 in | — |
| Basic dynamic load rating, radialCr | 128,000 N | — |
| Basic dynamic load rating, radialCr | 28,776.978 lbf | — |
| Basic static load rating, radialC0r | 217,000 N | — |
| Basic static load rating, radialC0r | 48,785.971 lbf | — |
| Fatigue load limit, radialCur | 25,500 N | — |
| Fatigue load limit, radialCur | 5,732.914 lbf | — |
| Thermal speed ratingnϑr | 2,650 1/min | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 383744 | — |
| Official Class Key | — | 050-010-010 |
| Base Type | 32921 | — |
| Gpsd Group | F04 | — |
| Product Line Id | 64 | — |
| X Life Marking | n.r. | — |
| SAP material number | 0167132300000 | — |
| Base product | 2305091001 | — |
| Bearing X designation | 32921 | — |
| Mounting Manager ID | 32921 | — |
| Grease application ID | 32921 | — |
| Mounting dimensions | ||
| Maximum diameter of shaft shoulderda max | 114 mm | — |
| Maximum diameter of shaft shoulderda max | 4.488 in | — |
| Minimum diameter of shaft shoulderdb min | 112 mm | — |
| Minimum diameter of shaft shoulderdb min | 4.409 in | — |
| Minimum diameter of housing shoulderDa min | 135 mm | — |
| Minimum diameter of housing shoulderDa min | 5.315 in | — |
| Maximum diameter of housing shoulderDa max | 136 mm | — |
| Maximum diameter of housing shoulderDa max | 5.354 in | — |
| Minimum diameter of housing shoulderDb min | 140 mm | — |
| Minimum diameter of housing shoulderDb min | 5.512 in | — |
| Minimum axial spaceCa min | 5 mm | — |
| Minimum axial spaceCa min | 0.197 in | — |
| Minimum axial spaceCb min | 5 mm | — |
| Minimum axial spaceCb min | 0.197 in | — |
| Maximum fillet radius of shaftra max | 1.5 mm | — |
| Maximum fillet radius of shaftra max | 0.059 in | — |
| Maximum fillet radius of housingrb max | 1.5 mm | — |
| Maximum fillet radius of housingrb max | 0.059 in | — |
| Product characteristics | ||
| Tolerance classP6X | Class 6X (ISO 492:2023) | — |
| Heat treatment | Standard | — |
| Internal design | Standard | — |
| Quality level | Standard | — |
| Number of rows1 | Single-row design | — |
| Product Identity | ||
| Construction | Tapered roller bearings 329, main dimensions acc. to DIN 720, separable | — |
| Short Description | Tapered roller bearing | — |
| Technical Data | ||
| d | — | 145 mm |
| T | — | 25 mm |
| B | — | 25 mm |
| Bore Diameter (D) | 105 mm | — |
| C | — | 20 mm |
| Outside Diameter (D) | 145 mm | — |
| R(Min.) | — | 1.5 mm |
| Width (B) | 25 mm | — |
| R1(Min.) | — | 1.5 mm |
| Basic Dynamic Load Rating, Radial (Cr) | 128,000 N | — |
| Basic Load Ratings : Cr | — | 160 kN |
| Basic Static Load Rating, Radial (C0R) | 217,000 N | — |
| Basic Load Ratings : C0R | — | 224 kN |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Fatigue Load Limit : Cu | — | 32.6 kN |
| Limiting Speed (Ng) | 4,700 1/min | — |
| Limiting Speeds(Grease Lub.) | — | 2400 min-1 |
| Operating Temperature Max. (Tmax) | 120 °C | — |
| Limiting Speeds(Oil Lub.) | — | 3100 min-1 |
| Reference Speed (Nϑr) | 2,650 1/min | — |
| Load Center Spread : A | — | 25.1 mm |
| Maximum Fillet Radius Of Housing (Rb Max) | 1.5 mm | — |
| Constant E | — | 0.34 |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 1.5 mm | — |
| Axial Load Factors : Y1 | — | 1.75 |
| Minimum Diameter Of Housing Shoulder (Da Min) | 135 mm | — |
| Axial Load Factors : Y0 | — | 0.96 |
| Minimum Diameter Of Housing Shoulder (Db Min) | 140 mm | — |
| Da(Min.) | — | 133 mm |
| Width, Outer Ring (C) | 20 mm | — |
| Db(Max.) | — | 113 mm |
| Fatigue Load Limit, Radial (Cur) | 25,500 N | — |
| Da(Max.) | — | 136.5 mm |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.34 | — |
| Db(Min.) | — | 140 mm |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 114 mm | — |
| Sa(Min.) | — | 5 mm |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 112 mm | — |
| Sb(Min.) | — | 5 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | 136 mm | — |
| Ra(Max.) | — | 1.5 mm |
| Dynamic Axial Load Factor (Y) | 1.75 | — |
| Rb(Max.) | — | 1.5 mm |
| Maximum Fillet Radius (Ra Max) | 1.5 mm | — |
| Mass(Refer.) | — | 1.23 kg |
| Minimum Axial Space (Cb Min) | 5 mm | — |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 1.5 mm | — |
| Guidance Rib Diameter Of Inner Ring (D1) | 125 mm | — |
| Minimum Axial Space (Ca Min) | 5 mm | — |
| Width, Inner Ring (B) | 25 mm | — |
| Static Axial Load Factor (Y0) | 0.96 | — |
| Distance Between The Apexes Of The Pressure Cones (A) | 25 mm | — |
| Temperature range | ||
| Operating temperature min.Tmin | -30 °C | — |
| Operating temperature min.Tmin | -22 °F | — |
| Operating temperature max.Tmax | 120 °C | — |
| Operating temperature max.Tmax | 248 °F | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.