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Super precision angular contact ball bearing, 140 x 210 x 33 mm, 15° contact angle, phenolic cage, universal light preload, 6,300 rpm on grease.
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| MFR / Brand | FAG |
|---|---|
| MPN | B7028CTP4SUL |
| Model | B7028 CT P4S UL / 7028CTDULP4 / 2MM9128WI / Q0L28DTL7 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 140 mm |
| OD | 210 mm |
| Width | 33 mm |
| Material | Steel |
|---|---|
| Series | 7000 |
| Condition | New |
| Preload | Light |
| Base Number | 7028 |
| Industry Terms | Spindle bearing, super precision bearing, machine tool bearing, high speed angular contact bearing |
| Bore Shaft Size | 140 mm |
| Mpn Variants | B7028CTP4SUL, B-7028-C-T-P4S-UL, B7028 CT P4S UL, B7028C, 7028CTDULP4 (duplex pair designation), Q0L28DTL7 |
| Additional Attributes | Fatigue load limit Cur 9.1 kN; axial rigidity 142 N/µm light, 237 N/µm medium, 335 N/µm heavy; lift-off force 2,661 N light; shaft shoulder da 152 mm h12; outer ring shoulder Da 199 mm H12; ra max 2 mm; ra1 max 1 mm; r min 2 mm; pressure cone apex distance a 39.9 mm |
| Min Temp | -30 °C |
| Cage Type | Not specified |
| Dynamic Load Rating | 153 kN (Cr, radial) |
| Static Load Rating | 114 kN (C0r, radial) |
| Precision Rating | P4S (ABEC 7/9 class, FAG standard above P4) |
| Rolling Elements | Ball |
| Max Temp | 100 °C |
| Item Weight | 3.288 kg (7.25 lb) |
| Cage Material | Phenolic (laminated fabric), outer-ring guided |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Internal Clearance | N/A - preloaded bearing |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15 ° (degrees of arc) |
| Mounting Arrangement | Universal - matchable in pairs or sets (back-to-back, face-to-face or tandem) |
| Part Number | B7028C.T.P4S.UL |
| Cross Reference 1 | SKF 7028 CD/P4ADGA |
|---|---|
| Cross Reference 2 | Fafnir 2MM9128WI |
| Cross Reference 3 | B7028E.T.P4S.UL (related size, same envelope, 25° contact angle) |
FAG B7028C.T.P4S.UL super precision angular contact ball bearing, also called a spindle bearing. Series B70, B70..-C design. Bore: 140 mm. Outside diameter: 210 mm. Width: 33 mm. Single row, open, straight bore. Searchable forms: B7028C.T.P4S.UL, B7028CTP4SUL, B-7028-C-T-P4S-UL, B7028 CT P4S UL, B7028C.
Contact Angle: 15°. Cage Material: laminated fabric phenolic, outer-ring guided. Precision Class: P4S, FAG’s own class above P4. Preload: light. Arrangement: universal single bearing, adjusted for mounting in pairs or sets. Preload force in a light-preload pair: 866 N.
A 15° contact angle favours speed and radial stiffness and carries less thrust than a 25° bearing on the same envelope. Basic dynamic load rating, radial: 153 kN. Basic static load rating, radial: 114 kN. Fatigue load limit, radial: 9.1 kN. Limiting speed: 6,300 rpm on grease, 10,000 rpm on oil. Axial rigidity in light preload: 142 N/µm. P4S tolerances give closer running accuracy and lower vibration than P4.
One bearing. Universal design: two or more mount together back-to-back, face-to-face or in tandem, and a pair sets light preload without shims or measurement.
Diameter shaft shoulder: 152 mm. Shoulder diameter outer ring: 199 mm. Maximum recess radius: 2 mm on the shaft side, 1 mm on the housing side. Minimum chamfer dimension: 2 mm. Distance between the apexes of the pressure cones: 39.9 mm. Operating temperature range: -30 °C to 100 °C. Weight: 3.288 kg.
Equivalents at the same 15° contact angle and super precision class: SKF 7028 CD/P4ADGA, Fafnir 2MM9128WI. A B7028E on the same envelope carries a 25° contact angle and is a related size.
$95.00
148 in stock
$95.00
148 in stock
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