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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
1 in stock
Super precision angular contact ball bearing, 95 x 145 x 24 mm, 15° contact angle, light preload, laminated phenolic cage, P4 tolerance, universally ground.
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$726.67
1 in stock
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| MFR / Brand | RHP |
|---|---|
| MPN | 7019CTSULP4 |
| Model | 7019CT SUL P4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 95 mm (3.7402 in) |
| OD | 145 mm (5.7087 in) |
| Width | 24 mm (0.9449 in) |
| Material | Through-hardened carbon chrome bearing steel (SAE 52100) |
|---|---|
| Series | 70 Series (ISO dimension series 10) |
| Base Number | 7019 |
| Industry Terms | Machine tool spindle bearing; super precision angular contact; universally ground single; ABEC 7 spindle bearing |
| Bore Shaft Size | 95 mm (3.7402 in) |
| Mpn Variants | 7019CTSULP4; 7019-C-T-SUL-P4; 7019 CT SUL P4; 7019CTRSULP4; 7019C |
| Rolling Elements | Steel balls |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Lubricant | Oil/air or grease |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | 7019CTSULP4 |
| Cross Reference 5 | SNFA EX95-7CE1 |
|---|
RHP 7019CTSULP4 super precision angular contact ball bearing. Series: 70, ISO dimension series 10. Bore: 95 mm. Outside Diameter: 145 mm. Width: 24 mm. Country of origin: United Kingdom. Searchable forms: 7019CTSULP4, 7019-C-T-SUL-P4, 7019 CT SUL P4, 7019CTRSUL, 7019C.
Contact Angle: 15°. Cage: laminated phenolic resin, outer ring guided. Grouping: SU, a single universally ground bearing. Preload: Light, 540 N axial when paired. Precision Grade: P4 — ABEC 7, RHP EP7, ISO Class 4.
Dynamic Load Rating: 73,500 N. Static Load Rating: 73,000 N. Limiting speed: 14,000 rpm on oil/air, 8,600 rpm on grease. A 15° contact angle carries more speed and less thrust than a 25°. Light preload is the level chosen for most spindles where loads and speeds are not extreme, and it gives a paired axial stiffness of 124 N/µm. The laminated phenolic cage runs quietly at speed and is rated to 120 °C.
One bearing. Universal grinding means any two of these bearings form a matched pair at the light preload value, in back-to-back, face-to-face or tandem order, and three or more stack into DBD, DBB or DTD sets.
Effective load centre: 28.1 mm. Abutment dimensions: shaft shoulder 104 mm maximum, housing shoulder 136 mm minimum, outer ring abutment 139 mm maximum. Corner radii: 1.5 mm minimum outer, 1.0 mm minimum inner. Recommended shaft fit at P4 for a 95 mm seat is a mean 3 µm interference; a locating housing bore takes a mean 6.5 µm clearance. Internal free volume is 51.8 cm³, which sets the grease charge at 20 to 30 per cent fill. The high point of radial runout is marked by a burnished spot on the inner ring face and a V line on the outer ring diameter.
Same-spec equivalents: SKF 7019 CD/P4ADGA, FAG B7019-C-T-P4S, Fafnir 2MM9119WI, SNFA EX95-7CE1. Related size: NSK 7019A5TYNSULP4, the 25° version of the same envelope.
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