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Availability:
5 in stock
Super-precision angular contact ball bearing, 40 x 62 x 12 mm, 25° contact angle, light preload, phenolic outer-land-riding cage, ABEC 7/9.
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$204.85
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 3MM9308WICRDUL |
| Model | 3MM 9308 WI CR DUL / 71908 E CR DUL P4S / 7908A5 71908ACD |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 62 mm |
| Width | 12 mm |
| Material | Bearing Steel |
|---|---|
| Series | 9300 Series |
| Condition | New |
| Lubricant | Preserved |
| Preload | Light Preload |
| 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 | CR – Phenolic Outer Land Riding Cage |
| 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 |
| Cross Reference 1 | 71908E-T-P4S-DUL |
|---|
Fafnir 3MM9308WI-DUL super-precision angular contact ball bearing, built by Timken. Bore: 40 mm. Outside Diameter: 62 mm. Bearing Width: 12 mm. Total Width: 24 mm. Contact Angle: 25°. Precision Class: ISO P4S (ABEC 7/9). Preload: Light. Cage Material: Phenolic. Cage Type: outer-ring land riding, machined. Rolling Elements: steel balls. Closure Type: Open. Series: 9300. Bore Type: Straight.
3MM — Fafnir super-precision spindle execution at a 25° contact angle, ground to ISO P4S.
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.
Dynamic Radial Load Rating (C1): 15,100 N per bearing. Static Radial Load Rating (C0): 11,100 N per bearing. ISO dynamic radial rating per row: 13,700 N. Limiting Speed: 22,200 rpm on grease, 40,400 rpm on oil. Lubricant: grease or oil.
The 719 dimension series is the extra-light section: a small radial cross-section for a given bore, which keeps mass and heat down and lets the bearing turn very fast. A 25° contact angle carries more thrust and gives higher axial stiffness than a 15° bearing on the same envelope. The phenolic cage is light, tolerates high surface speed and holds oil in its fabric base.
Unit Quantity: 2 Pcs. Universally ground duplex pair, mountable back-to-back, face-to-face or in tandem.
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.
Timken world part number: 71908E-T-P4S-DUL. Manufacturing part number: 3MM9308WI DUL. The same bearing is written 3MM9308WIDUL, 3MM-9308-WI-CR-DUL and 3MM9308WICRDUL.
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