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Availability:
8 in stock
Super-precision spindle bearing, 95 x 170 x 32 mm, 25° contact angle for higher thrust, light preload universal match, phenolic cage, P4S tolerance.
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$389.86
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| MFR / Brand | FAG |
|---|---|
| MPN | B7219ETPAP4UL |
| Model | B 7219E TPA P4 UL / 3MM219 / 219 / 7219A |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 95 mm |
| OD | 170 mm |
| Width | 32 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7200 |
| Condition | New |
| Lubricant | Grease |
| Preload | Light Preload |
| Base Number | B7219 |
| Industry Terms | super precision spindle bearing, machine tool spindle bearing, 25 degree angular contact, universally matchable, P4S ABEC 7 |
| Common Misspellings | B7219ETPAP4UL, B 7219 E TPA P4 UL, B7219ETPA, B7219-E-TPA-P4-UL |
| Bore Shaft Size | 95 mm |
| Mpn Variants | B7219E.TPA.P4.UL, B7219-E-T-P4S-UL, B7219E.T.P4S.UL, B7219ETPAP4UL, B7219 E TPA P4 UL, B-7219-E-T-PA-P4-UL, B7219E |
| Compatible With Replaces | B7219-E-T-P4S-UL replaces B7219E.T.P4S.UL and B7219E.TPA.P4.UL |
| Rolling Elements | Balls |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Part Number | B7219E.TPA.P4.UL |
FAG B7219E.TPA.P4.UL super-precision angular contact spindle bearing. Series: B72. Bore: 95 mm. Outside Diameter: 170 mm. Width: 32 mm. Single row, open, universally matchable for pair and set mounting. Country of origin: Germany.
B72 is the spindle bearing series. E sets the Contact Angle at 25°. TPA and T both denote a machined fabric-base laminate phenolic cage. P4S is the tolerance class, held tighter than P4 to ISO 492. U marks a universally ground single bearing and L sets light preload at 1,184 N. The Fafnir cross-reference 3MM219 carries the same 25° angle.
A 25° contact angle carries more thrust and less speed than a 15°. Dynamic Load Rating: 124 kN (27,876 lbf). Static Load Rating: 78.0 kN (17,535 lbf). Fatigue Load Limit: 7.1 kN. Limiting speed: 7,000 rpm on grease, 11,000 rpm on oil. Axial rigidity at light preload: 273 N per micrometre. The phenolic cage is light and self-lubricating, holding ball guidance steady at spindle speeds where a brass cage would add mass.
One bearing per unit. The UL execution is universally ground, so it runs alone or pairs with another UL piece back-to-back, face-to-face or in tandem, with light preload set by the ground faces.
Shaft shoulder diameter: 110.5 mm to h12. Housing shoulder diameter: 154 mm to H12. Maximum recess radius: 2.1 mm. Minimum chamfer dimension: 2.1 mm. Distance between the pressure cone apexes: 46.9 mm. Grease injection pitch diameter: 119.1 mm to 126.9 mm, so the outer ring accepts relubrication through the housing. Operating temperature range: -30 °C to 100 °C.
Schaeffler’s current designation is B7219-E-T-P4S-UL, which replaces both B7219E.T.P4S.UL and B7219E.TPA.P4.UL. Searchable variants: B7219ETPAP4UL, B7219E TPA P4 UL, B-7219-E-T-PA-P4-UL. The Fafnir equivalent is 3MM219WI. NSK 7219A sits on the same envelope at 30°, a related size rather than a substitution.
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