Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
When a motor stops running, the first instinct is to find the part that looks
Availability:
39 in stock
Counterbored outer ring, open both faces, single row of steel balls, regular internal fit-up. Fafnir 200WI spindle series, ground for machine tool duty.
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39 in stock
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| MFR / Brand | Fafnir |
|---|---|
| MPN | RM209WICR |
| Model | RM 209 WI / 7209B T P4 |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 45 mm |
| OD | 85 mm |
| Width | 19 mm |
| Condition | New |
|---|---|
| Base Number | RM209WI |
| Industry Terms | spindle bearing, counterbored angular contact, max type bearing, filling slot bearing, phenolic cage bearing, precision ball bearing |
| Common Misspellings | Fafnir RM209WI CR, Faffnir RM209WICR, RM209WICK, Fafnir RM 209WI, angular contct bearing 45x85x19 |
| Application Types | Machine tool spindles, precision gearboxes, grinding heads, industrial drive shafts |
| Overall Width | 19 mm |
| Mpn Variants | RM209WICR, RM209WI-CR, RM-209-WI-CR, RM209WI CR, RM209WI, RM 209 WI CR, Timken RM209WICR, 7209-B, 7209 T P4, 7209 |
| Manufacturer Status | Fafnir brand now owned by Timken; legacy precision designation |
| Compatible With Replaces | Machine tool and precision gear drive positions calling a 45 x 85 x 19 mm counterbored angular contact ball bearing at ABEC 3 |
| Arrangement Configuration | Single, Non-Matched |
| Precision Class | ABEC 3 |
| Cage Type | Machined, Outer-Ring Land-Riding |
| Precision Rating | ABEC 3 |
| Series | Fafnir 200WI Spindle Angular Contact |
| Rolling Elements | Balls |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Internal Clearance | Regular Fit-Up (R) |
| Lubricant | Grease or oil |
| Design Units | Metric |
| Part Number | RM209WICR |
| Cross Reference 1 | SKF 7209 BECBM (40 deg, same 45 x 85 x 19 mm envelope) |
|---|---|
| Cross Reference 2 | FAG 7209-B-XL-TVP (40 deg, same 45 x 85 x 19 mm envelope) |
| Cross Reference 3 | NSK 7209C (15 deg, same 45 x 85 x 19 mm envelope) |
| Cross Reference 4 | NSK 7209A (30 deg, same 45 x 85 x 19 mm envelope) |
| Cross Reference 5 | NTN 7209B (40 deg, same 45 x 85 x 19 mm envelope) |
| Cross Reference 6 | Koyo 7209C (15 deg, same 45 x 85 x 19 mm envelope) |
| Cross Reference 7 | Koyo 7209 (30 deg, same 45 x 85 x 19 mm envelope) |
| Cross Reference 8 | MRC 7209 (29 deg, same 45 x 85 x 19 mm envelope) |
| Cross Reference 9 | Fafnir 2MM209WICR (15 deg, ABEC 7/9 super-precision, same 45 x 85 x 19 mm envelope) |
Fafnir RM209WICR precision angular contact ball bearing, single row, in the 7209 / 209 envelope. Bore Diameter: 45 mm. Outside Diameter: 85 mm (3.3465 in). Overall Width: 19 mm (0.748 in). Number Of Rows: 1. Rolling Elements: Balls. Bore Type: Straight. Cage Material: Phenolic. Cage Type: Machined, outer-ring land-riding. Precision Class: ABEC 3. Closure Type: Open. Series: Fafnir 200WI spindle angular contact. Base Number: RM209WI. Unit Quantity: 1 Pc. Country of Origin: United States. The outer ring is counterbored on one side, and the high shoulder carries the thrust.
R — regular internal fit-up, the standard radial clearance selection.
M — Precision Class: ABEC 3, a tighter tolerance on bore, outside diameter, width and running accuracy than standard grade.
209 — 200 series, bore code 09, giving a 45 mm bore.
WI — maximum-capacity filling-slot type with a counterbored outer ring, which gives the bearing its angular contact geometry and thrust capacity in one direction.
CR — composition retainer, a phenolic laminated-fabric cage.
Cage Material: Phenolic. Phenolic runs quiet and cool at speed. It is light, so cage inertia stays low; it is self-lubricating, so it tolerates marginal lubrication; and it is soft enough that a ball skid polishes the pocket. Its working range extends to roughly 120 °C.
Precision Class: ABEC 3. That grade gives repeatable shaft location and suits machine tool spindles, grinding heads and precision gear drives. Internal Clearance: Regular fit-up (R), the standard radial clearance selection.
Closure Type: Open. Both faces are open, so grease or oil reaches the raceway directly from the housing and the bearing accepts a circulating or mist feed as readily as a grease pack.
Bore Diameter: 45 mm. Outside Diameter: 85 mm. Overall Width: 19 mm. The 45 x 85 x 19 mm envelope is the ISO 7209 / 209 boundary, so the bearing seats in any shaft seat and housing bore machined to that size. The counterbored face is the low shoulder; the high shoulder faces the thrust load.
Unit Quantity: 1 Pc. Number Of Rows: 1. Arrangement / Configuration: Single, non-matched. One single bearing, supplied as one piece. A preload-matched duplex pair carries a DU, DUL, DUM or DUH suffix.
Timken RM209WICR and Fafnir RM209WICR are the same part — Timken owns the Fafnir brand. Same-envelope 45 x 85 x 19 mm single-row angular contact equivalents, each with its own contact angle: SKF 7209 BECBM at 40°, FAG 7209-B-XL-TVP at 40°, NSK 7209C at 15°, NSK 7209A at 30°, NTN 7209B at 40°, Koyo 7209C at 15°, Koyo 7209 at 30°, MRC 7209 at 29°. The Fafnir 2MM209WICR shares this envelope at ABEC 7/9 super-precision with a 15° contact angle. Searchable designation variants: RM209WI, RM-209-WI-CR, RM 209 WI CR, 7209-B, 7209 T P4.
$48.94
1 in stock
$48.94
1 in stock
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