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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.
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3 in stock
Koyo 21317RKC3FY spherical roller bearing, 85 mm tapered bore (1:12), 180 mm OD, 41 mm width, C3 clearance, brass cage. Mounts on an H317 adapter sleeve.
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| MFR / Brand | Koyo |
|---|---|
| MPN | 21317RKC3FY |
| Model | 21317 R K C3 FY |
| Bearing Type | Spherical Roller Bearing, Open |
| ID | 85 mm |
| OD | 180 mm |
| Width | 41 mm |
| Material | Bearing Steel |
|---|---|
| Series | 21300 |
| Rolling Elements | Spherical Roller |
| Cage Material | Brass |
| Number Of Rows | 2 |
| Bore Type | Tapered 1:12 |
| Snap Ring Included | No |
| Harmonization Code | 8482.30.00 |
| Internal Clearance | C3 |
| Mpn Variants | 21317RKC3FY, 21317 R K C3 FY, 21317-R-K-C3-FY, 21317M, 21317MB |
| Compatible With Replaces | Mounts on H317 adapter sleeve (KM17 locknut, MB17 washer) |
| Industry Terms | Spherical roller bearing; self-aligning roller bearing; tapered bore bearing; adapter sleeve bearing; SRB |
| Common Misspellings | 21317RK C3FY; 21317 RKC3 FY; Koyo 21317-RK-C3-FY; Koya 21317RKC3FY; spherical rolller bearing |
| Application Types | Conveyor pulleys and drums; fans and blowers; crushers and screens; gearboxes; pumps |
| Closure Type | Open |
| Cross Reference 1 | SKF 21317 EK/C3 - steel cage vs brass |
|---|---|
| Cross Reference 2 | FAG 21317-E1-K-C3 - steel cage vs brass |
| Cross Reference 3 | NSK 21317EAKE4C3 - steel cage vs brass |
Koyo 21317RKC3FY spherical roller bearing, 21300 series, with a 1:12 tapered bore, one piece, bearing only. Bore: 85 mm. Outside diameter: 180 mm. Width: 41 mm. The spherical outer raceway lets the bearing self-align under shaft deflection or housing misalignment. Open on both faces.
21317 — 213 series spherical roller bearing, bore code 17 = 85 mm bore, 180 mm OD, 41 mm width.
R — Koyo R-type internal design with machined brass cage.
K — tapered bore, taper 1:12.
C3 — radial internal clearance greater than normal.
Bore Diameter: 85 mm (large end of taper). Bore Type: Tapered, 1:12. Outside Diameter: 180 mm. Overall Width: 41 mm. Number Of Rows: 2. Rolling Elements: Spherical Roller. Cage Material: Brass. Internal Clearance: C3. Closure Type: Open. Unit Quantity: 1 Pc.
Related part: H317 adapter sleeve (75 mm shaft seat), with KM17 locknut and MB17 lock washer.
Tapered-bore cross-references in the 85 x 180 x 41 mm envelope, each in its C3 clearance execution: SKF 21317 EK/C3, FAG 21317-E1-K-C3 and NSK 21317EAKE4C3, all with a steel cage against the brass cage of the Koyo R-type. Other written forms: 21317 R K C3 FY, 21317-R-K-C3-FY, 21317M, 21317MB.
85 mm, tapered 1:12. The K in the designation is the 1:12 taper code.
C3, radial internal clearance greater than normal.
H317 adapter sleeve, 75 mm shaft seat, with KM17 locknut and MB17 lock washer.
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American manufacturers are sitting on a lot of stuff. The
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Tapered, cylindrical, and spherical roller bearings all solve the same basic problem, carrying more load
If you pulled a bearing off general industrial equipment at random, there’s a good chance
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Our team can locate, cross-reference, and source all parts.
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