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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.
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Fafnir 2MM205WI-SUM super-precision angular contact ball bearing, 25 x 52 x 15 mm, 15° contact angle, P4 class, medium preload, universally ground.
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM205WI SUM |
| Model | 2MM205WI-SUM |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 25 mm |
| OD | 52 mm |
| Width | 15 mm |
| Series | 200 |
|---|---|
| Preload | Medium |
| Material | Bearing Steel |
| Base Number | 7205 |
| Industry Terms | Super precision spindle bearing, machine tool bearing, universally ground angular contact bearing |
| Bore Shaft Size | 25 mm |
| Mpn Variants | 2MM205WI-SUM, 2MM-205-WI-SUM, 2MM205WISUM, 2MM205WI, 2MM205WIDUM, B7205C.T.P4.DUM, 7205C, 7205-C |
| Precision Class | ABEC 7 / P4 |
| Rolling Elements | Balls |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Plain outer ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Single universal |
| Bearing Material | Bearing Steel |
| Part Number | 2MM205WI-SUM |
| Additional Attributes | Universally ground single bearing; ISO 7205 C envelope; matched-set mounting by back-to-back, face-to-face or tandem |
| Common Misspellings | Fafnir 2MM205 WI SUM; Fanir 2MM205WI; Faffnir 2MM205WISUM; Timkin Fafnir 2MM205 |
| Application Types | Machine tool spindles; high-speed spindle positions; precision gearbox and pump shaft positions |
| Cross Reference 1 | SKF 7205 CD/P4ADGB - 15 deg angle, medium preload |
|---|
Fafnir 2MM205WI-SUM is a single super-precision angular contact ball bearing, universally ground, with a 25 mm bore, 52 mm outside diameter, 15 mm width, 15° contact angle and medium preload. Unit Quantity: 1 Pc.
2MM — Timken Fafnir super-precision angular contact series with a 15° contact angle, ISO P4 (ABEC 7) precision.
205 — 25 mm bore.
WI — low-shoulder rings, the duplex-ground form.
SU — single bearing, universally ground.
M — medium preload.
Bore Diameter: 25 mm. Outside Diameter: 52 mm. Overall Width: 15 mm. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Preload: Medium. Mounting Arrangement: Single universal. Bore Type: Straight. Closure Type: Open. Number Of Rows: 1. Rolling Elements: Balls. Series: 200. Harmonization Code: 8482.10.50.
ISO 7205 C envelope, 25 x 52 x 15 mm. Universal grinding allows mounting back-to-back, face-to-face or in tandem with another universal bearing.
Cross-Reference 1: SKF 7205 CD/P4ADGB – 15 deg angle, medium preload. Designation forms: 2MM205WI-SUM, 2MM-205-WI-SUM, 2MM205WISUM, 2MM205WI, 2MM205WIDUM, B7205C.T.P4.DUM, 7205C, 7205-C.
Bore Diameter: 25 mm. Outside Diameter: 52 mm. Overall Width: 15 mm.
Contact Angle: 15°. Precision Class: ABEC 7 / P4.
SU is a single universally ground bearing and M is medium preload.
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