Bore (d): 2 in/ 50.80 mm
Outer Diameter (D): 3.9368 in/ 99.995 mm
Cone Width (B): 1 in/ 25.400 mm
Mass: 2 lb/ 0.91kg
Seal Type: open
Cage: steel
Bearing Material: bearing steel
Hardness: 58-64 HRC
28580A-28527RB Bearing Cone: 28580A
Cup Number: 28527RB
Bore (d): 2 in/ 50.80 mm
Outer Diameter (D): 3.9368 in/ 99.995 mm
Cone Width (B): 1 in/ 25.400 mm
Mass: 2 lb/ 0.91kg
Seal Type: open
Bearing Cage: steel
Bearing Material: bearing steel
Hardness: 58-64 HRC
Number of Row: single row
Structure: taper roller bearing
Lubrication: grease or oil
Interchange Numbers: 28580A – 28527RB, 28580A / 28527RB, 28580A/28527RB, 28580 A/28527 RB, SET264, Set 264
1. Tapered roller bearing design (Cup + Cone set) for strong performance under demanding loads.
2. Supports combined loads: built to handle high radial loads plus axial (thrust) load in one direction.
3. High load-carrying capacity thanks to line contact between rollers and raceways, helping distribute stress effectively.
4. Separable components (cone and cup), which can simplify installation, inspection, and replacement during maintenance.
5. 28580A – 28527RB bearings are suitable for heavy-duty applications such as gearboxes, axle/wheel-end systems, industrial equipment, and similar machinery (depending on sizing and lubrication).
| SET95 2580/2523 | SET254 25577/25523 |
| SET98 3984/3920 | SET255 25581/25520 |
| SET200 LM451349/LM451310 | SET256 25583/25519 |
| SET201 368A/362A | SET257 25584/25547RB |
| SET202 LM545849/LM545810 | SET258 25590/25522 |
| SET203 475/472A | SET260 25877/25821 |
| SET204 570/563 | SET261 26882/26820 |
| SET205 469/453X | SET262 27687/27620 |
| SET206 482/472 | SET263 28580/28521 |
| SET207 495A/493 | SET264 28580A/28527RB |
| SET208 497/492A | SET265 29585/29522 |
| SET209 498/492A | SET266 29590/29522 |
| SET210 527/522 | SET267 29685/29620 |
| SET211 528/522 | SET268 LM29749/LM29711 |
| SET212 537/532X | SET269 33281/33462 |
| SET213 539/532A | SET270 33885/33822 |
| SET214 559/552A | SET271 33889/33822 |
| SET215 575/572X | SET272 33895/33822 |
| SET216 594/592A | SET273 34301/34500 |
| SET217 598A/593X | SET274 36690/36620 |
| SET218 641/632 | SET275 37425/37625 |
| SET219 M88046/M88010 | SET276 39580/39520 |
| SET220 681/672 | SET277 39580/39528 |
| SET222 HM88649HP/HM88610P | SET278 39581/39520 |
| SET223 750A/742 | SET279 39585/39520 |
| SET224 855/854 | SET280 U298/U261L(K529698) |
| SET225 861/854 | SET281 42381/42584 |
| SET226 1380/1328 | SET282 42688/42620 |
| SET228 2689/2631 | SET283 45285A/45220 |
| SET229 2780/2720 | SET284 U298/U261L(K525376) |
Comparison helps when dimensional fit is only part of the decision and load direction, sealing, clearance, speed, temperature, or repeat-order stability still need to be confirmed. Reviewing one or two nearby options early usually reduces sourcing mistakes later.
Buyers normally confirm the part reference, main dimensions, application, speed range, operating environment, sealing needs, and any packaging or marking requirements. That gives the supplier a cleaner basis for confirming availability and suitable alternatives.
A quick review of Taper Roller Bearings, one more commercial destination, and one practical guide usually saves time. That combination helps separate simple replacement orders from jobs that still need fit or application review.
Because it makes later decisions faster. When sizing notes, application cues, and nearby options stay close to the product, engineering, purchasing, and maintenance teams can revisit the same logic without starting the review from zero.
1. Sea shipping for mass cargos (GW > 500KGS)
2. Air shipping (GW between 100KGS – 500 KGS)
3. Express, such as DHL, TNT, Fedex, UPS for small cargos ( GW < 100KGS)
4. If you have shipping agent in China, we can send goods to your shipping agent's warehouse
We accept T/T, W/U, PAYPAL, L/C etc
Buyer FAQ
Confirm the bearing number, bore size, outside diameter, width, seal or shield type, cage material, clearance, precision level, quantity, and application. These details help prevent a size match from becoming a performance mismatch.
Yes. Replacement and repeat orders are easier when the original marking, measured dimensions, photos, application, and quantity are available. If the marking is unclear, the team can start from the size and working condition.
This item is handled within the Taper Roller Bearings family. Comparing the family page can help buyers review similar sizes, seal options, load direction, and related bearing choices before requesting a quote.
Price and lead time can change with quantity, stock availability, precision grade, clearance, material, cage, seal or shield type, lubrication, packaging, and whether the order needs standard matching or custom production.
Inspection can include material review, dimensional measurement, noise and vibration checks, surface and crack checks, visual review, and packaging inspection according to the confirmed order requirements.
Need help checking fit, price, or lead time? Request a bearing quote
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