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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:
4 in stock
Super-precision angular contact ball bearing, 70 x 125 x 24 mm, 15° contact angle, single universal with light preload, phenolic cage, ABEC 7.
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$190.49
4 in stock
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| MFR / Brand | RHP |
|---|---|
| MPN | 7214CTSULP4 |
| Model | 7214 C T SUL P4 / 2MM215WI CR SUL / 214HDL / B7214CTPAP4UL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 70 mm |
| OD | 125 mm |
| Width | 24 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7200 |
| Lubricant | None |
| Base Number | 7214 |
| Industry Terms | Super precision spindle bearing; 15 degree angular contact; phenolic cage spindle bearing; ABEC 7 bearing; single universal bearing; machine tool spindle bearing |
| Common Misspellings | 7214 CTSULP4; 7214CTSUL P4; 7214CSULP4; RHP 7214 C T SUL P4; angular contct bearing |
| Country Region Of Manufacture | United Kingdom |
| Bore Shaft Size | 70 mm (2.7559 in) |
| Mpn Variants | 7214CTSULP4; 7214-C-T-SUL-P4; 7214 C T SUL P4; 7214CTSUL; 7214C; 214HDL |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | 7214CTSULP4 |
| Cross Reference 6 | 7214 (ISO base number) |
|---|---|
| Cross Reference 7 | RHP 7214CTSUMP4 (related, same envelope and angle, medium preload) |
RHP 7214CTSULP4 super-precision angular contact ball bearing. Bore 70 mm, outside diameter 125 mm, width 24 mm. Straight bore, open on both faces, single row of balls, machined phenolic cage riding on the outer ring land.
72 is the ISO medium angular contact dimension series and 14 is the bore code, giving a 70 mm bore. C denotes a 15° contact angle in the RHP scheme. T is a fabric-base laminate phenolic cage. SU marks a single universally ground bearing and L sets light preload. P4 is ISO Class 4, equivalent to ABEC 7. The carton also carries 2MM215WICRSUL, 214HDL and B7214CTPAP4UL, whose 2MM code confirms the 15° angle, whose CR and TPA codes confirm the phenolic cage, and whose UL confirms universal light preload.
A 15° contact angle favours speed and radial stiffness over thrust capacity, which is the usual choice for a grinding or milling spindle running at high rpm. A phenolic cage guided on the outer ring land is light and self-lubricating, so it tolerates higher surface speed than a steel cage. Light preload removes internal play while keeping torque and heat generation low. ISO Class 4 controls bore, outside diameter and raceway runout to super-precision limits.
One piece. Universal grinding means any two units of this designation stack directly as a back-to-back, face-to-face or tandem set, with the light preload built into the ground ring faces. A single-row angular contact bearing takes thrust in one direction, so a second bearing opposes it.
Ring faces are ground flat and square for direct abutment, so preload develops when the shaft nut and housing cap are drawn fully home. The bearing is supplied dry, which suits oil mist, circulating oil or a measured grease charge.
Same 15° equivalents are the FAG B7214-C-T-P4S-UL and the SKF 7214 CDGA/P4A. The Fafnir 2MM215WICRSUL is the same bearing under the WI numbering scheme.
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