What size front wheel bearing?

The size of a front wheel bearing depends on the specific vehicle and bearing type, so there isn’t one universal measurement; most modern cars use integrated hub assemblies you replace as a unit, while traditional bearings are sized by inner diameter × outer diameter × width (for example, 35 × 64 × 37 mm). To get the exact size, you’ll need your vehicle’s make, model, year (and often VIN), or you can measure the old bearing and verify the dimensions against a parts catalog.

What you need to identify the correct bearing

Front wheel bearings vary by platform, axle design, and whether the vehicle uses a serviceable bearing or a sealed hub unit. Having the right vehicle details ensures you get the correct fit, load rating, and ABS compatibility.

• Make, model, and year (plus trim/engine and 2WD/AWD where applicable)
• Whether the bearing is a separate press-in unit or an integrated hub assembly
• ABS tone ring requirements (internal vs external, tooth count)
• Left vs right (some hubs differ), performance/package variations, and aftermarket brake/axle modifications
• VIN for precise parts lookup in OEM catalogs

With these details, a parts catalog or dealer can zero in on the correct bearing or hub without guesswork.

How to find the exact size

You can confirm the bearing size and part number through official documentation, trusted databases, or direct measurements—then cross-verify with a reputable catalog to avoid fitment errors.

1. Use the VIN in an OEM parts catalog or dealership system to pull the exact front hub/bearing part number.
2. Check trusted aftermarket catalogs (Timken, SKF, NSK, NTN, Koyo, Moog) and cross-reference the OE number.
3. Consult the factory service manual, which often lists the bearing type and dimension or the specified hub assembly.
4. If the bearing is serviceable (not a hub), read the stamped code on the old bearing (e.g., DAC3564W-2RS, 6203, SET17) and decode it in the manufacturer’s table.
5. As a last resort, measure the old bearing (see steps below) and match the measurements in a catalog.

Cross-referencing more than one source reduces the risk of ordering the wrong component, especially on models with mid-year changes.

Understanding wheel bearing size conventions

Wheel bearing dimensions are typically specified as inner diameter (ID) × outer diameter (OD) × width (W) in millimeters, and many use standard code families. Modern passenger vehicles often use double-row angular contact bearings or sealed hub units; older RWD setups commonly use tapered rollers.

Here are the most common formats you’ll encounter and what they mean:

• Double-row angular contact (often marked “DAC”): Example DAC3564W-2RS indicates roughly 35 × 64 × 37 mm with double seals.
• Deep-groove ball bearings (6xxx series): Example 6203 = 17 × 40 × 12 mm; common in motorcycles and some compact applications.
• Tapered roller sets (SET numbers like SET4, SET6, SET17): Sold as matched cone/cup pairs; dimensions are standardized and listed in manufacturer charts.
• Hub assemblies (OE numbers and aftermarket ranges like 513xxx or HA590xxx): These include the bearing, flange, and often ABS encoder; you replace the entire unit rather than measure the internal bearing.

Knowing the code family speeds up identification and ensures you match load capacity, sealing, and internal design—not just diameter.

Typical size ranges by vehicle category (guidance only)

While exact dimensions vary by application, these ranges can set expectations when planning a repair or checking clearances. Always verify against your specific vehicle.

• Small FWD cars: double-row bearings with ~34–40 mm ID, ~60–75 mm OD, ~35–40 mm width
• Compact/midsize crossovers and sedans: ~39–45 mm ID, ~70–85 mm OD, ~37–45 mm width
• Half-ton pickups/SUVs: ~45–55 mm ID, ~80–100+ mm OD, wider housings for higher loads
• Motorcycles: often 6202–6205 family (IDs typically 15–25 mm), but check service manual
• Older RWD/trailer hubs: tapered roller “SET” pairs matched to the spindle and hub

Use these ranges as a ballpark only; the correct part is determined by your vehicle’s exact specification and bearing system.

How to measure an existing bearing accurately

If you can’t identify the bearing by code or catalog, careful measurement with a quality caliper or micrometer helps you match the part precisely.

1. Clean the bearing and look for stamped markings; note any codes before measuring.
2. Measure inner diameter (ID): either the bearing’s bore or, more reliably, the spindle journal where it seats.
3. Measure outer diameter (OD): the outside of the bearing that presses into the knuckle or hub bore.
4. Measure width (W): overall bearing thickness; for tapered pairs, consult the specification for assembled width.
5. Record units (mm vs inches) and match to a manufacturer’s dimension table; confirm sealing (2RS, metal shields), ABS encoder type, and load rating.

After measuring, cross-check in at least one reputable catalog; small rounding errors can point you to the wrong standard size.

Key takeaways and next steps

Because front wheel bearing size is application-specific—and many vehicles use sealed hub assemblies—the surest path is to identify the exact part via VIN or by decoding the existing bearing’s markings. If you provide your vehicle’s make, model, year, drivetrain, and whether it has ABS, we can pinpoint the correct size or hub assembly part number.

Summary

There is no single “front wheel bearing size”; it depends on your vehicle and bearing type. Use VIN-based lookup, bearing code decoding (e.g., DAC series, 6xxx, SET numbers), or precise measurements (ID × OD × width) to identify the correct part. For most modern cars, you’ll replace a complete hub assembly matched to your exact model and ABS configuration.

How to know what size wheel bearings to get?

And we’re looking for the nominal measurement or the whole number this here is measuring just a little bit under 17. And then we can go ahead and spread out for the outer. Diameter.

What size bearings are in front and rear hubs?

Common Bearing Sizes

• Front Hub Bearings: 61802 (15x24x5 mm) 61803 (17x26x5 mm)
• Rear Hub Bearings: 61902 (15x28x7 mm) 61903 (17x30x7 mm)
• Bottom Bracket Bearings: 61805 (25x37x7 mm) 61806 (30x42x7 mm)

What size are front wheel bearings?

Bearing Sizing
This requires knowing the ball diameter, which can be measured using an imperial set of verniers for loose ball bearings. Common sizes include 5/32″ for headsets and pedals, 3/16″ for front hubs, and 1/4″ for rear hubs and bottom brackets.

How to find the correct bearing size?

Bearings are measured by their inner diameter, outer diameter, and width; the size of a bearing is normally listed as such: ID x OD x W. These measurements are normally taken in millimeters, but can be converted to inches.