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Fafnir2MM9105WODU-E7236Super-Precision Angular Contact Ball Bearing Duplex Pair — 25 mm Bore, 47 mm OD, 12 mm Wide, 15° Contact Angle, Phenolic Cage, C2

Condition: New

Availability:

1 in stock

Super-precision angular contact ball bearing duplex pair, 25 x 47 x 12 mm each, 15° contact angle, phenolic cage, C2 internal clearance, open.

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List Price

$145.32

1 in stock

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Specifications

Key Specifications

MFR / BrandFafnir
MPN2MM9105WODU-E7236
GTIN087796072107
Model2MM 9105 WO CR DU C2 E7236 / 7005 C
Bearing TypeAngular Contact Ball Bearing, Open
ID25 mm
OD47 mm
Width12 mm

Technical Specifications

MaterialBearing Steel
Series9100
PreloadLight
Base Number9105
Overall Width12 mm
Mpn Variants2MM9105WODU-E7236; 2MM9105WOCRDUC2E7236; 2MM-9105-WO-CR-DU-C2-E7236; 2MM 9105 WO CR DU C2 E7236
Precision ClassABEC 7/9 / P4S
Rolling ElementsBall
Cage MaterialPhenolic
Number Of Rows2
Bore TypeStraight
Internal ClearanceC2
Harmonization Code8482.10.50.68
Contact Angle15°
Mounting ArrangementDuplex matched pair
Bearing MaterialBearing Steel

Cross-References

Cross Reference 17005 C (25 x 47 x 12 mm, 15°)
Cross Reference 2SKF 7005 CD/P4A
Cross Reference 3FAG B7005-C-T-P4S
Cross Reference 4NSK 7005CTRSU P4
Cross Reference 5NTN 7005 UCG/GNP4
Cross Reference 6Fafnir 2MM9105WI-CR-DU (related, WI low-shoulder ring form)
Seller Part Number: B-AI2B5#LOUOND

Product Description

What this part is

Fafnir 2MM9105WO-CR-DU-C2-E7236 super-precision angular contact ball bearing, supplied as a duplex pair. Bore Diameter: 25 mm. Outside Diameter: 47 mm. Overall Width: 12 mm per bearing. Series: 9100WO. Base Number: 9105. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Bearing Material: Bearing Steel. The 9105 size code matches the ISO 7005 envelope.

Decoding the designation

2MM — Contact Angle: 15°, in Timken’s MM super-precision spindle range.

MM — Precision Class: ABEC 7/9 (P4S), the tolerance grade the MM prefix carries.

9105 — the 25 mm bore size in the 9100 spindle series, on the ISO 7005 boundary dimensions.

CR — Cage Material: Phenolic.

DU — Mounting Arrangement: duplex, two bearings ground as a matched set.

C2 — Internal Clearance: C2, tighter than normal.

E7236 — a Timken engineering suffix identifying the specific build of this order code.

What these specs mean in practice

Contact Angle: 15°. A 15° angle favours speed and radial stiffness, and is the angle chosen for machine tool spindles where the thrust component is moderate and the running speed is high. Precision Class: ABEC 7/9. Internal Clearance: C2. Cage Material: Phenolic, which is light, self-lubricating and quiet at high surface speeds.

Mounting data

The straight bore seats directly on a ground spindle journal. Faces are universally ground so the two bearings of the set stack against each other and take up the built-in relationship when the clamp nut is tightened.

Quantity and configuration

Unit Quantity: 2 Pcs. Number Of Rows: 2. A matched duplex set ships together.

Interchange guidance

The 25 x 47 x 12 mm envelope at 15° is the ISO 7005 C size, so a 15° super-precision 7005 duplex set from another maker fits the same seat. The Fafnir 2MM9105WI-CR-DU carries the same envelope with the WI low-shoulder ring form and is listed as a related execution.

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