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HMI Panels and PLC Modules: What They Do and How to Match a Replacement
When an HMI panel goes dark or a PLC module stops communicating, the machine it
Availability:
2 in stock
Super-precision angular contact ball bearing, 40 mm bore x 68 mm OD x 15 mm wide, 15 degree contact angle, ABEC 7, matched duplex pair at light preload. 2 Pcs.
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| MFR / Brand | RHP |
|---|---|
| MPN | 7008CTDULP4 |
| Model | B7008X2TADULEP7 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm |
| Width | 15 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 7000 |
| Condition | New |
| Lubricant | Grease/Oil |
| Base Number | 7008 |
| Industry Terms | Super precision spindle bearing; matched duplex pair; ABEC 7 angular contact; machine tool spindle bearing |
| Common Misspellings | 7008CTDUL P4; 7008-CT-DULP4; RHP 7008CTDLUP4; 7008 CTDULP4 |
| Application Types | Machine tool spindles; grinding spindles; high-speed precision gearboxes; rotary tables |
| Bore Shaft Size | 40 mm (1.5748 in) |
| Mpn Variants | 7008CTDULP4; 7008-C-T-DUL-P4; 7008 C T DUL P4; 7008CTDUL; 7008CDULP4 |
| Rolling Elements | Ball |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Part Number | 7008CTDULP4 |
| Cross Reference 1 | Fafnir 2MM9108WI CR DUL |
|---|---|
| Cross Reference 2 | FAG B7008-C-T-P4S-DUL |
| Cross Reference 3 | SKF 7008 CD/P4ADGB |
A super-precision angular contact ball bearing in the 7008 size, supplied as a factory-matched duplex pair. Bore 40 mm, outside diameter 68 mm, width 15 mm per bearing.
7008 — ISO angular contact 70-series: 40 mm bore, 68 mm outside diameter, 15 mm width. The 70 series is the light section, with a thinner cross-section than a 72-series bearing of the same bore.
C — 15° contact angle in the RHP scheme.
T — phenolic laminated-fabric cage.
DUL — duplex universal pair, light preload.
P4 — ABEC 7 precision class.
The 15° contact angle and the light 70-series section together make this the high-speed, low-heat end of the angular contact range for a 40 mm shaft, at the cost of thrust capacity relative to a 25° or a heavier-section bearing. Light preload gives the lowest friction and the lowest steady-state temperature rise of the three preload grades, with correspondingly lower axial stiffness. A phenolic cage suits the cage speeds this combination reaches and sets a lower temperature ceiling than machined bronze.
2 Pcs — one matched duplex pair. Universal grinding allows the pair to be assembled back-to-back, face-to-face or in tandem.
The preload is ground into the ring faces and is realised only when both inner rings and both outer rings are clamped solidly against their seats. Alignment marks on the outer ring faces set the intended arrangement.
The ISO shorthand for this size and angle is 7008 C; the RHP carton form is B7008X2 TA DUL EP7. Closest matches at 15°, ABEC 7 and light preload: Fafnir 2MM9108WI CR DUL, FAG B7008-C-T-P4S-DUL and SKF 7008 CD/P4ADGB. 7008 bearings at a 25° contact angle, or at medium or heavy preload, are related sizes. A 7208 is a heavier section on the same 40 mm bore.
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