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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
1 in stock
Super-precision angular contact ball bearing, 90 x 160 x 30 mm, 15° contact angle, medium preload, phenolic outer-land-riding cage, ABEC 7/9.
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$220.92
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM218WI SUM |
| Model | 2MM218WISUM |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 90 mm |
| OD | 160 mm |
| Width | 30 mm |
| Material | Chrome steel |
|---|---|
| Series | 200 |
| Lubricant | Grease or oil |
| Preload | Medium |
| Base Number | 2MM218WI |
| Total Width | 30 mm |
| Bore Shaft Size | 90 mm |
| Mpn Variants | 2MM218WI-SUM, 2MM218WISUM, 2MM218WICRSUM, 2MM-218-WI-CR-SUM, 2MM-218-WI-CR-DUM |
| Arrangement Configuration | Single universally ground |
| Precision Class | ABEC 7/9 (ISO P4S) |
| Dynamic Load Rating C1 | 129,900 N |
| Additional Attributes | Ball type: steel. Shaft backing shoulder diameter: 102.7 mm. Housing backing shoulder diameter: 148 mm. Maximum shaft fillet radius: 2 mm. Outer ring to-clear radius: 2 mm. ISO dynamic radial rating per row: 118,000 N. |
| Cage Type | CR – Phenolic Outer Land Riding Cage |
| Dynamic Load Rating | 129,900 N |
| Static Load Rating | 97,900 N |
| Precision Rating | ISO P4S (ABEC 7/9) |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Limiting Speed | 8,900 rpm grease / 17,800 rpm oil |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Universally ground single – stackable back-to-back, face-to-face or tandem |
| Bearing Material | Chrome steel |
| Cross Reference 1 | 7218C-T-P4S-SUM |
|---|
Fafnir 2MM218WI-SUM is a super-precision angular contact ball bearing built by Timken, 90 mm bore by 160 mm outside diameter by 30 mm width, 15° contact angle, medium preload. Single universally ground bearing. Unit Quantity: 1 Pc.
2MM — Fafnir super-precision spindle execution at a 15° contact angle, ground to ISO P4S.
218 — the 200WI size series, ISO 7218 envelope, 90 x 160 x 30 mm.
WI — low shoulder on both rings.
CR — phenolic outer land riding cage.
SUM — single universally ground bearing, medium preload.
Bore Diameter: 90 mm. Outside Diameter: 160 mm. Bearing Width: 30 mm. Total Width: 30 mm. Contact Angle: 15°. Precision Class: ISO P4S (ABEC 7/9). Preload: Medium. Cage Material: Phenolic. Cage Type: Outer-ring land riding, machined. Rolling Elements: Steel balls. Closure Type: Open. Number Of Rows: 1. Series: 200. Bore Type: Straight. Dynamic Radial Load Rating (C1): 129,900 N. Static Radial Load Rating (C0): 97,900 N. ISO dynamic radial rating per row: 118,000 N. Limiting Speed: 8,900 rpm grease; 17,800 rpm oil. Lubricant: Grease or oil. Unit Quantity: 1 Pc.
Shaft Backing Shoulder Diameter: 102.7 mm. Housing Backing Shoulder Diameter: 148 mm. Maximum Shaft Fillet Radius: 2 mm. Outer Ring To-Clear Radius: 2 mm. Faces are ground so pieces of the same number stack to the rated preload back-to-back, face-to-face or in tandem.
Timken world part number: 7218C-T-P4S-SUM. Manufacturing part number: 2MM218WI SUM. The same bearing is written 2MM218WISUM, 2MM-218-WI-CR-SUM and 2MM218WICRSUM.
15°.
Medium preload, on a single universally ground bearing.
Limiting Speed is 8,900 rpm on grease and 17,800 rpm on oil.
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