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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:
2 in stock
Fafnir WIR313K wide inner ring deep groove ball bearing, 65 x 140 x 58.74 mm, WIR300 medium series. Open both faces, setscrew locking through the inner ring.
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| MFR / Brand | Fafnir |
|---|---|
| MPN | WIR313K |
| Model | WIR-313-K |
| Bearing Type | Deep Groove Ball Bearing, Open |
| ID | 65 mm |
| OD | 140 mm |
| Width | 58.74 mm (2.3125 in) |
| Source | Fafnir, 3BG Supply |
|---|---|
| Material | Bearing Steel |
| Series | WIR300 Medium Series |
| Lubricant | Grease or oil |
| Base Number | 313 |
| Total Width | 58.74 mm (2.3125 in) |
| Bore Shaft Size | 65 mm |
| Locking Method | Setscrew |
| Mpn Variants | WIR 313 K, WIR-313-K, 313K |
| Manufacturer Status | Active |
| Dynamic Load Rating C1 | 102,700 N (23,100 lbf), per bearing |
| Additional Attributes | Shaft shoulder 76.96 mm; housing shoulder 128.02 mm |
| Dynamic Load Rating | 102,700 N (23,100 lbf), per bearing |
| Static Load Rating | 59,700 N (13,400 lbf), per bearing |
| Rolling Elements | Ball |
| Limiting Speed | 2,930 rpm (grease), 3,400 rpm (oil) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.10.50 |
| Design Units | Metric |
| Bearing Material | Bearing steel |
| Part Number | WIR313K |
| Industry Terms | wide inner ring ball bearing; setscrew ball bearing |
| Common Misspellings | WIR313; WRI313K; WIR 313K; Fafnir WIR-313 |
| Application Types | Industrial shafting; agricultural machinery; conveyors |
| Closure Type | Open |
Fafnir WIR313K is a single-row wide inner ring deep groove ball bearing from Timken’s Fafnir WIR300 medium series, open on both faces, with setscrew locking through the extended inner ring. One complete bearing: inner ring, outer ring, ball complement and cage.
WIR — wide inner ring. The inner ring is extended past the outer ring on both sides, giving a long shaft seat and room for the locking setscrews.
313 — 300 medium dimension series, bore code 13: 65 mm bore, 140 mm outside diameter.
K — setscrew locking. The extended inner ring carries the setscrews that grip the shaft directly.
Bore Diameter: 65 mm. Outside Diameter: 140 mm. Overall Width: 58.74 mm (2.3125 in). Base Number: 313. Series: WIR300 Medium Series. Number Of Rows: 1. Rolling Elements: steel balls. Bore Type: Straight. Closure Type: open. Seal Type: Open. Bearing Material: bearing steel. Locking Method: setscrew, through the extended inner ring. Lubricant: grease or oil. Design Units: Metric. Manufacturer Status: Active. Manufacturer Part Number: WIR313K. Country of Origin: United States. Unit Quantity: 1 Pc.
Dynamic Radial Load Rating (C1): 102,700 N (23,100 lbf), per bearing. Static Radial Load Rating (C0): 59,700 N (13,400 lbf), per bearing. Limiting Speed, grease: 2,930 rpm. Limiting Speed, oil: 3,400 rpm.
Shaft Backing Shoulder Diameter: 76.96 mm (3.030 in). Housing Backing Shoulder Diameter: 128.02 mm (5.040 in). Maximum Shaft Fillet Radius: 2.11 mm (0.083 in). Outer Ring To-Clear Radius: 2.11 mm (0.083 in).
MPN Variants: WIR313K, WIR 313 K, WIR-313-K, 313K. Harmonization Code: 8482.10.50. Related: the plain 6313 is 33 mm wide with a standard inner ring.
Bore 65 mm, outside diameter 140 mm, overall width 58.74 mm (2.3125 in).
Dynamic radial load rating 102,700 N and static radial load rating 59,700 N per bearing; limiting speed 2,930 rpm on grease and 3,400 rpm on oil.
Setscrew locking: the extended inner ring carries setscrews that grip the shaft directly.
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