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3 in stock
Super-precision angular contact ball bearing, 70 x 125 x 24 mm, 15 degree contact angle, ABEC 7 class, phenolic outer-land-riding cage, open. Single bearing, 1 Pc.
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| MFR / Brand | Timken |
|---|---|
| MPN | 2MM214WI |
| Model | 2MM214WI-CR ABEC 9 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 70 mm |
| OD | 125 mm |
| Width | 24 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 2MM |
| Condition | New |
| Lubricant | Oil |
| Unspsc | 31171504 |
| Base Number | 7214 |
| Industry Terms | spindle bearing, machine tool bearing, super precision bearing, precision angular contact ball bearing, AC bearing |
| Common Misspellings | Fafner 2MM214WI, Faffnir 2MM214WI, Fafnier 2MM214WI, 2MM214W1, 2M214WI, 2MM2I4WI |
| Application Types | Machine tool spindles, grinding spindles, milling heads, high-speed gearboxes |
| Bore Shaft Size | 70 mm (2.7559 in) |
| Mpn Variants | 2MM214WI, 2MM-214-WI, 2MM 214 WI, 2MM214WICR, 2MM-214-WI-CR, 2MM214WI CR, MM214WI |
| Arrangement Configuration | Single bearing |
| Precision Class | ABEC 7 / ISO P4S |
| Cage Type | Machined |
| Dynamic Load Rating | 75.4 kN / 16950 lbf |
| Static Load Rating | 63.5 kN / 14275 lbf |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Item Weight | 2.55 lbs |
| Cage Material | Phenolic (fabric-reinforced laminate) |
| Limiting Speed | 12000 |
| Number Of Rows | 1 |
| Bore Type | straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.5028 |
| Contact Angle | 15 degrees |
| Design Units | Metric |
| Bearing Material | High-carbon chrome steel |
| Part Number | 2MM214WI |
| Cross Reference 1 | Timken 2MM214WI |
|---|---|
| Cross Reference 2 | SKF 7214 CD/P4A |
| Cross Reference 3 | FAG B7214-C-T-P4S |
| Cross Reference 4 | NSK 7214CTR |
A single-row super-precision angular contact ball bearing in the Fafnir 200WI spindle series, 70 mm bore × 125 mm outside diameter × 24 mm width. The ISO equivalent designation is 7214 C.
2MM — 15° contact angle, Fafnir super-precision spindle bearing.
214 — 200 dimension series, bore code 14, giving a 70 mm bore.
WI — spindle angular contact ball bearing, universally ground faces.
CR — phenolic cage riding on the outer ring land.
The MM prefix on a Fafnir spindle bearing carries P4S tolerances — ABEC 7 dimensional accuracy with ABEC 9 running accuracy.
A 15° contact angle biases the bearing toward speed and radial rigidity, and carries less thrust than a 25° bearing in the same envelope. Outer-land-riding phenolic cages are light, self-lubricating and dimensionally stable at high DN values, which is why they are standard on grinding and milling spindles. Phenolic places the working temperature ceiling near 120 °C. Rings and balls are through-hardened high-carbon chrome steel.
Bore: 70 mm (2.7559 in)
Outside diameter: 125 mm (4.9213 in)
Width: 24 mm (0.9449 in)
Contact angle: 15°
Precision class: ABEC 7 / ISO P4S
Dynamic load rating C: 75.4 kN
Static load rating C0: 63.5 kN
Limiting speed: 12,000 rpm
Rows: 1
Cage: phenolic, outer-land-riding
Rolling elements: steel balls
Bearing material: high-carbon chrome steel
Closure: open, both faces
ISO equivalent: 7214 C
Single bearing, 1 Pc. The universally ground faces allow assembly into a duplex or triplex stack of matching bearings, where the arrangement sets the preload.
Mounting is an interference fit on the shaft and a close fit in the housing bore, both held to super-precision spindle limits. Faces seat against square ground shoulders, and a runout error at the shoulder transfers directly into the raceway.
Same-spec 15° P4 equivalents in other schemes are the SKF 7214 CD/P4A, FAG B7214-C-T-P4S and NSK 7214CTR. The 3MM214WI shares the envelope at a 25° contact angle, which makes it a related size rather than an interchange.
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