Size: 55x120x29mm
Weight: 1.38kg
Precision: ABEC1/P0
Seal: metal seal on 2 sides
Lubrication: standard grease
Internal Play: C3, larger than C0
Basic dynamic load rating: 74.1 KN
Basic static load rating: 45 KN
6311-2Z/C3 bearing is single row ball bearing.
For this bearing model,
Size: 55x120x29mm
Weight: 1.38kg
Precision: ABEC1/P0
Seal: metal seal on 2 sides
Lubrication: standard grease
Basic dynamic load rating: 74.1 KN
Basic static load rating: 45 KN
Structure: single row deep groove ball bearing
Equivalents: 6311 2Z C3, 6311 ZZC3, 6311-C-2Z-C3, 6311-ZZ-C3, 6311ZZC3, etc
1. 6311-2Z/C3 bearing is single row deep groove ball bearing, it has a straight forward design which is robust in operation and easy to maintain.
2. 6311-ZZ-C3 belong to 6300 series bearings, this series ball bearings can be used in a wide range of industrial processes, for example, bicycles, washing and drying machines, etc.
3. Bearing has a wider (internal) clearance than normal. The extra internal clearance allows expansion due to high speeds or temperatures.
4. Bearing with metal seals on both sides, which are dust proof and water proof.
| Model Number | Specifications(dxDxB) | Weight/kg |
| 6300-2Z/C3 | 10x35x11 | 0.053 |
| 6301-2Z/C3 | 12x37x12 | 0.0574 |
| 6302-2Z/C3 | 15x42x13 | 0.082 |
| 6303-2Z/C3 | 17x47x14 | 0.113 |
| 6304-2Z/C3 | 20x52x15 | 0.142 |
| 6305-2Z/C3 | 25x62x17 | 0.235 |
| 6306-2Z/C3 | 30x72x19 | 0.341 |
| 6307-2Z/C3 | 35x80x21 | 0.453 |
| 6308-2Z/C3 | 40x90x23 | 0.636 |
| 6309-2Z/C3 | 45x100x25 | 0.825 |
| 6310-2Z/C3 | 50x110x27 | 1.05 |
| 6311-2Z/C3 | 55x120x29 | 1.36 |
| 6312-2Z/C3 | 60x130x31 | 1.67 |
| 6313-2Z/C3 | 65x140x33 | 2.08 |
| 6314-2Z/C3 | 70x150x35 | 2.55 |
| 6315-2Z/C3 | 75x160x37 | 3.02 |
| 6316-2Z/C3 | 80x170x39 | 3.6 |
| 6317-2Z/C3 | 85x180x41 | 4.22 |
| 6318-2Z/C3 | 90x190x43 | 4.92 |
| 6319-2Z/C3 | 95x200x45 | 5.74 |
| 6320-2Z/C3 | 100x215x47 | 7.08 |
Comparison helps when dimensional fit is only part of the decision and load direction, sealing, clearance, speed, temperature, or repeat-order stability still need to be confirmed. Reviewing one or two nearby options early usually reduces sourcing mistakes later.
Buyers normally confirm the part reference, main dimensions, application, speed range, operating environment, sealing needs, and any packaging or marking requirements. That gives the supplier a cleaner basis for confirming availability and suitable alternatives.
A quick review of Deep Groove Ball Bearings, one more commercial destination, and one practical guide usually saves time. That combination helps separate simple replacement orders from jobs that still need fit or application review.
Because it makes later decisions faster. When sizing notes, application cues, and nearby options stay close to the product, engineering, purchasing, and maintenance teams can revisit the same logic without starting the review from zero.
1. Sea shipping for mass cargos (GW > 500KGS)
2. Air shipping (GW between 100KGS – 500 KGS)
3. Express, such as DHL, TNT, Fedex, UPS for small cargos ( GW < 100KGS)
4. If you have shipping agent in China, we can send goods to your shipping agent's warehouse
We accept T/T, W/U, PAYPAL, L/C etc
Buyer FAQ
Confirm the bearing number, bore size, outside diameter, width, seal or shield type, cage material, clearance, precision level, quantity, and application. These details help prevent a size match from becoming a performance mismatch.
Yes. Replacement and repeat orders are easier when the original marking, measured dimensions, photos, application, and quantity are available. If the marking is unclear, the team can start from the size and working condition.
This item is handled within the Deep Groove Ball Bearings family. Comparing the family page can help buyers review similar sizes, seal options, load direction, and related bearing choices before requesting a quote.
Price and lead time can change with quantity, stock availability, precision grade, clearance, material, cage, seal or shield type, lubrication, packaging, and whether the order needs standard matching or custom production.
Inspection can include material review, dimensional measurement, noise and vibration checks, surface and crack checks, visual review, and packaging inspection according to the confirmed order requirements.
Need help checking fit, price, or lead time? Request a bearing quote
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