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Fafnir2MM209WNCRAngular Contact Ball Bearing — 45 mm ID, 85 mm OD, 19 mm Width, 15° Contact Angle, Phenolic Cage, ABEC 7/9

Condition: New

Availability:

2 in stock

Super-precision angular contact ball bearing, 45 x 85 x 19 mm, ISO 7209 envelope, 15-degree contact angle. Phenolic outer land riding cage, ABEC 7/9.

List Price

$190.42

2 in stock

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Specifications

Key Specifications

MFR / BrandFafnir
MPN2MM209WNCR
Model2MM209WN
Bearing TypeAngular Contact Ball Bearing, Open
ID45 mm
OD85 mm
Width19 mm

Technical Specifications

MaterialHigh Carbon Chrome Steel
Series200WI
LubricantOil
Base Number209
Bore Shaft Size45 mm
Mpn Variants2MM-209-WN-CR, 2MM 209 WN CR, 2MM209WN, 7209C, 7209-C
Precision ClassABEC 7/9 (ISO P4S)
Cage TypeCR – Phenolic Outer Land Riding Cage
Precision RatingABEC 7/9 (ISO P4S)
Rolling ElementsBall
Cage MaterialPhenolic
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedWithout Snap Ring
Harmonization Code8482.10.50
Contact Angle15°
Design UnitsMetric
Part Number2MM209WNCR

Cross-References

Cross Reference 17209C-T-P4 - carton cross, P4 vs P4S
Cross Reference 2Fafnir 3MM209WI - 25 deg vs 15 deg
Cross Reference 3Fafnir 7209WN - 40 deg, standard precision
Seller Part Number: B-AI3B1#WATBZJ

Product Description

What this part is

Fafnir 2MM209WNCR, a super-precision spindle angular contact ball bearing from Timken’s Fafnir 200WI range. Bore: 45 mm. Outside Diameter: 85 mm. Overall Width: 19 mm. Contact Angle: 15°. Precision Class: ABEC 7/9 (ISO P4S). Cage Type: CR, phenolic outer land riding. Cage Material: phenolic. Rolling Elements: steel balls. Number of Rows: 1. Design Units: Metric. Manufacturer Part Number: 2MM209WNCR.

Decoding the designation

2MM — Fafnir super-precision spindle execution at a 15° contact angle, ground to ABEC 7/9 (ISO P4S) tolerance.

209 — 200WI dimension series, bore code 09. That is the ISO 7209 envelope: 45 mm bore, 85 mm outside diameter, 19 mm width.

CR — phenolic outer land riding cage, guided on the outer ring lands.

What these specs mean in practice

A 15° contact angle keeps the load path close to radial. That is the high-speed build in the family: it carries thrust in one direction while allowing a higher speed limit than the 25° execution on the same 45 x 85 x 19 mm envelope.

The phenolic outer land riding cage is the standard cage for spindle duty. It is light, so it adds little to ball-set inertia at speed, it runs quiet, and the resin holds oil in its own porosity to feed the ball pockets. ABEC 7/9 grinding is what holds the running accuracy a machine tool spindle needs.

Quantity and configuration

Unit Quantity: 1 Pc. One single-row bearing.

Interchange guidance

Cross-Reference: 7209C-T-P4, as marked. Searchable variants of the Fafnir number: 2MM209WNCR, 2MM-209-WN-CR, 2MM 209 WN CR, 2MM209WN, 7209C, 7209-C.

The 3MM209 on the same 45 x 85 x 19 mm envelope is the 25° build: more thrust capacity, lower speed. The plain Fafnir 7209WN shares the envelope but is a standard-precision bearing at a 40° contact angle.

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