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Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Availability:
4 in stock
Super-precision angular contact ball bearing, 40 x 68 x 15 mm, 25° contact angle, open, ABEC 7, universal medium preload, ISO 7008 envelope.
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$83.77
4 in stock
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| MFR / Brand | SNFA |
|---|---|
| MPN | EX40-7CE3UM |
| Model | EX 40-7 CE 3 UM |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm (2.6772 in) |
| Base Number | EX40 |
|---|---|
| Industry Terms | Spindle bearing, super precision angular contact bearing, machine tool bearing, 25 degree angular contact, SNFA EX series, universally matchable bearing |
| Common Misspellings | EX40 7CE3UM, EX40-7CE3-UM, EX 40 7CE3UM, SNFA EX40-7-CE3-UM |
| Application Types | Grinding and milling spindles, high-speed motor spindles, precision gearboxes, indexing and rotary tables |
| Overall Width | 15 mm (0.5906 in) |
| Bore Shaft Size | 40 mm (1.5748 in) |
| Mpn Variants | EX40-7CE3UM, EX 40-7 CE 3 UM, EX40 7CE3 UM, EX40-7-CE-3-UM, EX407CE3UM, 7008 U-M, 7008UM, 2MM-9108, 2MM9108 |
| Compatible With Replaces | ISO 7008 super-precision spindle positions, 40 mm shaft |
| Precision Class | ABEC 7 |
| Precision Rating | ABEC 7 |
| Series | EX (SNFA single row super precision), ISO 7008 envelope |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Contact Angle | 25° |
| Preload | Medium |
| Mounting Arrangement | Universal, flush-ground faces |
| Part Number | EX40-7CE3UM |
| Closure Type | Open |
| Cross Reference 1 | Fafnir 3MM9108WI – 25° |
|---|---|
| Cross Reference 2 | SKF 7008 ACD/P4A – 25° |
| Cross Reference 3 | FAG B7008-E-T-P4S – 25° |
| Cross Reference 4 | SNFA EX40-7CE1 – 15° vs 25° |
| Cross Reference 5 | Fafnir 2MM9108WI – 15° vs 25° |
SNFA EX40-7CE3UM single-row super-precision angular contact ball bearing, EX series, on the ISO 7008 envelope. One universally ground bearing, open on both faces, straight bore. Unit Quantity: 1 Pc. Country of Origin: Italy.
EX — SNFA single-row super-precision angular contact series.
40 — bore in millimetres.
7 — precision class ABEC 7.
CE3 — 25° contact angle.
UM — universal, medium preload: flush-ground rings that stack back-to-back, face-to-face or in tandem.
Bore Diameter: 40 mm (1.5748 in). Outside Diameter: 68 mm (2.6772 in). Overall Width: 15 mm (0.5906 in). Contact Angle: 25°. Precision Class: ABEC 7. Preload: Medium. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Mounting Arrangement: Universal, flush-ground faces.
Straight bore on the 40 mm shaft seat. Faces are flush-ground for stacking against further UM pieces of the same designation. A preloaded execution: no internal clearance class applies.
Cross-references at 25° in 40 x 68 x 15 mm: Fafnir 3MM9108WI; SKF 7008 ACD/P4A; FAG B7008-E-T-P4S. Related parts at 15°: SNFA EX40-7CE1; Fafnir 2MM9108WI. Part number forms: EX40-7CE3UM, EX 40-7 CE 3 UM, EX40-7-CE-3-UM, 7008 U-M, 2MM-9108.
25°, from the CE3 code in the designation.
40 mm bore, 68 mm outside diameter, 15 mm width, on the ISO 7008 envelope.
7 is precision class ABEC 7. UM is a universal bearing at medium preload.
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Tapered, cylindrical, and spherical roller bearings all solve the same basic problem, carrying more load
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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