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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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Fafnir | 311KGDeep Groove Ball Bearing – 55 mm Bore, 120 mm OD, 29 mm Width, Open, Snap Ring Groove and Ring$41.62
Koyo | 6011-2RSCMDeep Groove Ball Bearing - 55 mm ID, 90 mm OD, 18 mm Width, Rubber Seals Both Sides, CM Clearance$27.93
MRC | 111KSDeep Groove Ball Bearing - 55 mm ID, 90 mm OD, 18 mm Width, Open$28.69
NTN | 6211LLUC3/2ASDeep Groove Ball Bearing - 55 mm ID, 100 mm OD, 21 mm Width, Contact Seals Both Sides, C3 Clearance$30.40| MFR / Brand | RHP |
|---|---|
| MPN | 6311TBP4 |
| Model | MM 311 K / 6311P4 / MM311K / 6311 TB P4 |
| Bearing Type | Ball Bearing, Open |
| ID | 55 mm |
| OD | 120 mm |
| Width | 29 mm |
| Material | Bearing Steel |
|---|---|
| Series | 6300 |
| Lubricant | Oil |
| Closure Type | Open |
| Min Temp | -30 °C |
| Cage Type | Phenolic |
| Dynamic Load Rating | 71.5 kN |
| Static Load Rating | 45 kN |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Max Temp | 120 °C |
| Item Weight | 3.00 lbs |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50.68 |
| Internal Clearance | CN |
| Limiting Speed | 7500 rpm |
| Cross Reference 1 | SKF 6311/P4 |
|---|---|
| Cross Reference 2 | FAG 6311-P4 |
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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
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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