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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:
9 in stock
Matched duplex pair of Fafnir super-precision angular contact ball bearings, 50 x 90 x 20 mm each, 15° contact angle, heavy preload, ABEC 7 (P4), open.
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$234.12
9 in stock
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM210WI DUH |
| GTIN | 087796070547 |
| Model | 2-MM-210-WI-DUH / 7210C T DUH P4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 50 mm |
| OD | 90 mm |
| Width | 20 mm |
| Material | Chrome Steel |
|---|---|
| Series | 2MM200WI (ISO 72 medium series) |
| Preload | Heavy |
| Base Number | 7210 |
| Industry Terms | Machine tool spindle bearing; super precision angular contact; duplex matched pair; DUH set; heavy preload spindle bearing |
| Common Misspellings | 2MM210WIDUH; 2MM210W1DUH; 2MM210WL-DUH; Fafner; Faffnir |
| Application Types | Machine tool spindles; grinding spindles; boring and milling heads; precision gearboxes |
| Bore Shaft Size | 50 mm (1.9685 in) |
| Mpn Variants | 2MM210WI DUH; 2MM210WIDUH; 2MM210WI-DUH; 2MM-210-WI-DUH; 2-MM-210-WI-DUH; 2MM 210 WI DUH |
| Precision Class | ABEC 7 (ISO P4) |
| Dynamic Load Rating | 11,000 lbf |
| Static Load Rating | 7,130 lbf |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | 2MM210WI-DUH |
| Total Width | 40 mm (1.5748 in) across the pair |
Fafnir 2MM210WI DUH super-precision angular contact ball bearing, supplied as a matched duplex pair (Unit Quantity: 2 Pcs). Bore 50 mm, outside diameter 90 mm, width 20 mm per bearing, 40 mm across the pair. Open on both faces, one row of balls per bearing, phenolic cage, 15° contact angle, heavy preload, ABEC 7 (ISO P4) precision.
2MM — 15° contact angle; MM is the Fafnir P4 precision class.
210 — ISO 7210 envelope, 50 x 90 x 20 mm, 72 medium dimension series.
WI — low shoulder on both rings, the duplex form.
DU — duplex, universally ground pair.
H — heavy preload.
Bore Diameter: 50 mm. Outside Diameter: 90 mm. Overall Width: 20 mm per bearing. Total Width: 40 mm across the pair. Contact Angle: 15°. Number Of Rows: 1 per bearing. Preload: Heavy. Precision Class: ABEC 7 (ISO P4). Cage Material: Phenolic. Closure Type: Open. Bore Type: Straight. Series: 2MM200WI. Dynamic Load Rating: 11,000 lbf. Static Load Rating: 7,130 lbf. GTIN: 087796070547. Unit Quantity: 2 Pcs. Country of Origin: United States.
Straight 50 mm bore, 90 mm outside diameter. Maximum fillet radius on the mating part: 1 mm. Universal grinding allows back-to-back, face-to-face or tandem arrangements; the preload is ground into the ring faces. Preloaded set, no radial internal clearance grade.
The Fafnir 2MM210WI is the ISO 7210 15° spindle bearing family. Light and medium preload versions of the same 2MM210WI, and 25° versions such as the 3MM210WI, are related sizes with a different preload or contact angle.
Bore 50 mm, outside diameter 90 mm, width 20 mm per bearing, 40 mm across the pair.
15°. The 2MM prefix is the Fafnir 15° contact angle code.
DU is a universally ground duplex pair and H is heavy preload.
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