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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 duplex pair, 40 x 62 x 12 mm, 25° contact angle, light preload, phenolic cage, ISO P4S (ABEC 7/9).
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$204.85
4 in stock
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 3MM9308WI DUL |
| Model | 3MM9308WI DUL / 71908E-T-P4S-DUL / 3MM-9308-WI-CR-DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 62 mm |
| Width | 12 mm |
| Material | Chrome steel |
|---|---|
| Series | 9300 |
| Lubricant | Grease or oil |
| Preload | Light |
| Base Number | 3MM9308WI |
| Total Width | 24 mm |
| Bore Shaft Size | 40 mm |
| Mpn Variants | 3MM9308WI-DUL, 3MM9308WIDUL, 3MM9308WICRDUL, 3MM-9308-WI-CR-DUL, 3MM9308WI DUL |
| Arrangement Configuration | Universally ground duplex pair |
| Precision Class | ABEC 7/9 (ISO P4S) |
| Dynamic Load Rating C1 | 15,100 N per bearing |
| Additional Attributes | Ball type: steel. Shaft backing shoulder diameter: 44.6 mm. Housing backing shoulder diameter: 57.9 mm. Maximum shaft fillet radius: 0.6 mm. Outer ring to-clear radius: 0.6 mm. ISO dynamic radial rating per row: 13,700 N. |
| Cage Type | Outer land riding |
| Dynamic Load Rating | 15,100 N per bearing |
| Static Load Rating | 11,100 N per bearing |
| Precision Rating | ISO P4S (ABEC 7/9) |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Limiting Speed | 22,200 rpm grease / 40,400 rpm oil |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Mounting Arrangement | Universal duplex - back-to-back, face-to-face or tandem |
| Bearing Material | Chrome steel |
| Industry Terms | super precision angular contact bearing, spindle bearing, universally ground duplex bearing, matched pair angular contact bearing, 25 degree contact angle bearing, 71908 bearing pair |
| Common Misspellings | 3MM 9308 WI DUL, 3MM9308 WIDUL, Fafnir 3MM-9308-WI-DUL, 3MM9308WI-DLU |
| Part Number | 3MM9308WI DUL |
| Closure Type | Open |
| Cross Reference 1 | 71908E-T-P4S-DUL (Timken world part number) |
|---|
Fafnir 3MM9308WI-DUL is a super-precision angular contact ball bearing set, built by Timken: a universally ground duplex pair of two single-row bearings, 2 Pcs. Bore: 40 mm. Outside Diameter: 62 mm. Width: 12 mm per bearing, 24 mm total width of the pair. Contact Angle: 25°. Country of origin: United States.
3MM — Fafnir super-precision spindle execution at a 25° contact angle.
9308 — the 9300WI size series, ISO 71908 envelope, 40 x 62 x 12 mm.
WI — low shoulder on both rings.
CR — phenolic outer land riding cage.
DUL — universally ground duplex, light preload. Two single-row bearings ground as a matched set.
Precision Class: ISO P4S (ABEC 7/9). Preload: Light. Cage Material: Phenolic. Cage Type: Outer land riding. Rolling Elements: Ball (steel). Closure Type: Open. Bore Type: Straight. Series: 9300. Dynamic Load Rating: 15,100 N per bearing. Static Load Rating: 11,100 N per bearing. ISO dynamic radial rating per row: 13,700 N. Limiting Speed: 22,200 rpm grease; 40,400 rpm oil. Lubricant: Grease or oil. Unit Quantity: 2 Pcs.
Shaft Backing Shoulder Diameter: 44.6 mm. Housing Backing Shoulder Diameter: 57.9 mm. Maximum Shaft Fillet Radius: 0.6 mm. Outer Ring To-Clear Radius: 0.6 mm. Mounting Arrangement: universal duplex, back-to-back, face-to-face or tandem.
Timken world part number: 71908E-T-P4S-DUL. Manufacturing part number: 3MM9308WI DUL. Other written forms: 3MM9308WIDUL, 3MM-9308-WI-CR-DUL, 3MM9308WICRDUL.
Bore 40 mm, outside diameter 62 mm, width 12 mm per bearing (24 mm total for the pair), 25° contact angle.
DUL is a universally ground duplex set with light preload: two single-row bearings ground as a matched pair.
Dynamic load rating 15,100 N and static load rating 11,100 N per bearing. Limiting speed 22,200 rpm with grease and 40,400 rpm with oil.
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