Exact model answerM86649 / M86610: cone, cup and complete bearing dimensions
TIMKEN M86649 / M86610 identifies the cone M86649 and cup M86610 in the manufacturer record. The matched pair has bore d = 30.163 mm, outside diameter D = 64.292 mm and assembled width T = 21.433 mm. These are measurements for that complete cone-and-cup combination.
Do not confuse the assembled width with a separate ring: cone width B is 21.433 mm, while cup width C is 16.670 mm. Read T directly from the matched-pair record; adding B and C does not give the assembled width.
- Record marking
- M86649 / M86610
- Cone / inner assembly
- M86649
- Cup / outer ring
- M86610
Read each measurement separately
Bearing dimensions · published units retained| Measurement | Symbol | Metric | Inches |
|---|
| Bore (d) | d | 30.163 mm | 1 3/16 in |
|---|
| O.D. (D) | D | 64.292 mm | 2.5312 in |
|---|
| Width (T) | T | 21.433 mm | 0.8438 in |
|---|
| Inner Ring Width (B) | B | 21.433 mm | 0.8438 in |
|---|
| Outer Ring Width (C) | C | 16.670 mm | 0.6563 in |
|---|
| Effective Center Location | Not specified | -3.3 mm | -0.13 in |
|---|
Mounting measurements and source limitations
Mounting dimensions · published units retained| Measurement | Symbol | Metric | Inches |
|---|
| Max Shaft Fillet Radius | Not specified | 1.5 mm | 0.060 in |
|---|
| Max Housing Fillet Radius | Not specified | 1.52 mm | 0.06 in |
|---|
| Shaft Backing Shoulder Dia. - Frontface (da) | da | 38 mm | 1.5 in |
|---|
| Shaft Backing Shoulder Dia. - Backface (db) | db | 44 mm | 1.73 in |
|---|
| Housing Backing Shoulder Dia. - Frontface (Da) | Da | 60.96 mm | 2.40 in |
|---|
| Housing Backing Shoulder Dia. - Backface (Db) | Db | 54.10 mm | 2.13 in |
|---|
| Cage Location rel. to BF (Aa) | Aa | 0.8 mm | 0.03 in |
|---|
| Cage Location rel. to FF (Ab) | Ab | 1.8 mm | 0.07 in |
|---|
What to check on your bearing
- Read the complete cone and cup markings. This record requires M86649 together with M86610; a similar-looking suffix or an extra prefix must be checked separately.
- For size identification, distinguish the shaft-side bore d, housing-side diameter D and assembled width T. For an unassembled ring, compare B or C with the corresponding row instead.
- Check the named front/back face before using a shoulder diameter or cage offset. Minimum and maximum qualifiers remain part of the measurement.
- Use the equipment procedure and the exact bearing specification to determine fits, adjustment, lubrication and operating limits. These nominal dimensions do not supply preload, end play or tightening torque.
This is a dated dimensional reference, not a replacement approval or a manufacturer-certified drawing. Similar dimensions do not establish matching geometry, load capability, clearance, material or operating limits.
Factual reference: Timken component-identity feed and official dimensional catalogue; catalogue snapshot 2026-10-02. Interpretation and checking notes by BearingScope.
Technical documents & data sheet
This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.
- Record identity
- TIMKEN M86649 / M86610
- Document matching
- Exact designation, assembly scope, revision and units must agree.
No verified redistributable CAD or manufacturer PDF is registered for this exact model. A catalogue image is not a dimensioned drawing. Missing technical files are not generated or replaced with unrelated models.
Look up another model or check drawing requirements →
