Bore (d): 52.388mm/ 2.0625 inch
Cup Outer Diameter (D): 92.075mm/ 3.6250 inch
Inner Ring Width (B): 25.400mm/ 1 inch
Total Width (T): 24.608mm/ 0.9688 inch
Mass: 0.70kg/ 1.543lb
Cone Number: 28584
Cup Number: 28521
Cage: stamped steel
28584/28521 Bearing Bore (d): 52.388mm/ 2.0625 inch
Cup Outer Diameter (D): 92.075mm/ 3.6250 inch
Inner Ring Width (B): 25.400mm/ 1 inch
Total Width (T): 24.608mm/ 0.9688 inch
Mass: 0.70kg/ 1.543lb
Cone Number: 28584
Cup Number: 28521
Cage: stamped steel
Rings & Rollers Material: chrome steel Gcr15
Precision: ABEC1, P0
Lubrication: standard grease or oil
Category: taper roller bearing, single row
Warranty: 1 year
Equivalents: 28584 / 28521, 28584-28521, 28584 – 28521, 28584/521, 28584/21, 4T-28584/28521
1. Single-row tapered roller bearing set with separable cone (28584) and cup (28521) for easy installation and replacement.
2. Handles high radial loads and significant one-direction axial loads, ideal for heavy-duty, shock-prone applications.
3. Ground and superfinished raceways reduce friction, heat generation, and noise for stable running accuracy.
4. High-quality, case-hardened chrome steel improves wear resistance and fatigue strength under cyclic loads.
5. Axial adjustment allows precise endplay or preload to match application requirements and minimize deflection.
1. Send your inquiry with model numbers, quantities, preferred brands, and any special requirements.
2. We’ll confirm stock, share a detailed quotation, and present shipping options and costs by weight and destination.
3. Upon your acceptance, we’ll issue a proforma invoice with payment details and validity.
4. After payment is received, we’ll pick, inspect, and pack your order, then share the tracking details once it is available.
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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