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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
2 in stock
Super-precision angular contact ball bearing, 110 mm bore, 200 mm outside diameter, 38 mm width, 15° contact angle, universally ground single, light preload. 1 Pc.
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$706.44
2 in stock
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM222WISUL |
| Model | 2MM 222 WI SUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 110 mm |
| OD | 200 mm |
| Width | 38 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7200 |
| Base Number | 7222 |
| Industry Terms | Spindle bearing, super precision angular contact, universally ground single, machine tool bearing, ABEC 7 bearing |
| Common Misspellings | Fafner 2MM222WI, Faffnir 2MM222WISUL, Timkin 2MM222WI, 2M222WI |
| Application Types | Machine tool spindles, large grinding spindles, precision boring mills, heavy rotary tables |
| Bore Shaft Size | 110 mm (4.3307 in) |
| Mpn Variants | 2MM222WI-SUL, 2MM222WISUL, 2MM-222-WI-SUL, 2MM 222 WI SUL, 2MM222WI SUL |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50.28 |
| Part Number | 2MM222WI-SUL |
| Cross Reference 6 | NSK 7222 CTR SUL P4 |
|---|---|
| Cross Reference 7 | 2MM222WI-DUL (matched duplex pair, same specification) |
A Fafnir super-precision angular contact ball bearing, part number 2MM222WI-SUL. Bore is 110 mm, outside diameter 200 mm and width 38 mm, giving an ISO 7222 envelope. Fafnir is the super-precision line of the Timken Company, and the WI family is its spindle-grade angular contact series.
The leading 2 of 2MM sets a 15° contact angle, where 3MM sets 25°. The MM prefix carries super-precision class P4S, ABEC 7 dimensionally with ABEC 9 running accuracy. The absence of a leading 9 in 222 places the bearing in the ISO 72 dimension series rather than the lighter 70 series, which is why the outside diameter is 200 mm on a 110 mm bore. WI is the super-precision angular contact family, SU a universally ground single and L light preload.
A 15° contact angle carries less thrust and permits higher speed than a 25° angle. A universally ground single reaches the specified preload when clamped against another universally ground bearing of the same designation, which is what allows spindle sets of two, three or four to be built from singles. Light preload removes internal clearance while keeping running torque and heat generation low. The 72 series cross-section gives greater load capacity than a 70 series bearing on the same bore, at a lower limiting speed.
1 Pc. Single bearing, universally ground. No spacer rings, lock nut or housing are included.
Universally ground rings reach the designed preload when clamped solid against the flush ground faces of a mating bearing of the same designation, without shimming, and the arrangement is set by which faces are brought together. Handling is by the outer ring on a clean surface.
Same-spec equivalents are the 7222 C P4 universally ground single forms: FAG B7222-C-T-P4S-UL, SKF 7222 CD/P4A and NSK 7222 CTR SUL P4. The carton also records the Barden 222-H and NDH Q20222 numbers for the same envelope. A 7222 AC or A5 variant is a related size at 25° or 30° and changes the thrust and speed balance, so it is not a substitution. 2MM222WI-SUM and 2MM222WI-SUH share the envelope and angle at higher preload, and 2MM222WI-DUL is the factory-matched pair.
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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