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6212 Deep Groove Ball Bearing is a single-row deep groove ball bearing with a 60 mm bore, 110 mm outside diameter, and 22 mm width. As part of the 6200 series, the 6212 is designed for general-purpose applications and is available in open, shielded, and sealed configurations. According to the CXJSD 6200 series specifications, the standard 6212 has a 52.5 kN dynamic load rating, 36.0 kN static load rating, 10 balls with a 15.081 mm diameter, and a weight of approximately 0.783 kg. Its standard dimensions make it suitable for a wide range of industrial rotating equipment and machinery.
The 6212 is a single-row deep groove ball bearing with a 60 mm bore, 110 mm outside diameter and 22 mm width. The standard dimensions and performance values below are intended for checking shaft, housing, load and operating requirements.
| Parameter | Metric | Imperial |
|---|---|---|
| Bearing Model | 6212 | 6212 |
| Bearing Type | Single-Row Deep Groove Ball Bearing | Single-Row Deep Groove Ball Bearing |
| Bore Diameter (d) | 60 mm | 2.3622 in |
| Outside Diameter (D) | 110 mm | 4.3307 in |
| Width (B) | 22 mm | 0.8661 in |
| Minimum Chamfer Dimension (r) | 1.5 mm | 0.0591 in |
| Basic Dynamic Load Rating (Cr) | 57.5 kN | 12,930 lbf |
| Basic Static Load Rating (C0r) | 36.0 kN | 8,094 lbf |
| Grease Lubrication Speed | 6,700 rpm | 6,700 rpm |
| Oil-Bath Lubrication Speed | 8,000 rpm | 8,000 rpm |
| Minimum Shaft Abutment Diameter (da min.) | 68 mm | 2.6772 in |
| Maximum Shaft Abutment Diameter (da max.) | 74.5 mm | 2.9331 in |
| Maximum Housing Abutment Diameter (Da max.) | 102 mm | 4.0157 in |
| Maximum Fillet Radius (ra max.) | 1.5 mm | 0.0591 in |
| Number of Balls | 10 | 10 |
| Ball Diameter (Dw) | 15.875 mm | 0.6250 in |
| Approximate Weight | 0.783 kg | 1.727 lb |
| Cage | Pressed Steel Cage | Pressed Steel Cage |
| Standard Radial Internal Clearance | CN | Normal Clearance |
| Tolerance Class | ISO Normal Class | ISO Normal Class |
The 6212 uses a single-row deep groove design with an inner ring, outer ring, rolling elements and a pressed steel cage. Its deep raceway geometry allows the bearing to accommodate radial loads and axial loads in both directions.
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The inner ring has a 60 mm bore and provides the mounting surface for the rotating shaft while its raceway guides the balls during operation.
The outer ring has a 110 mm outside diameter and contains the outer raceway that works with the inner ring to support the rolling elements.
The standard 6212 bearing contains 10 steel balls with a diameter of 15.875 mm, which transfer loads between the inner and outer rings through rolling contact.
The 6212 uses a pressed steel cage to maintain proper spacing and guide the balls as they rotate inside the bearing.
The deep circular-arc raceways in the inner and outer rings allow the 6212 to support radial loads and axial loads in both directions.
The 6212 has a minimum chamfer dimension of 1.5 mm, providing clearance at the bearing edges for proper mounting and fitting.
Raceway exposed on both sides. Lowest running temperature and easiest to re-grease, but needs a clean operating environment.
Stamped steel shields keep out dust and coarse contaminants while retaining factory grease, with minimal added drag.
Contact rubber seals give the strongest protection against moisture and fine dust, suited to harsher duty cycles.
The 6212 combines a 60 mm bore, 110 mm outside diameter and 22 mm width with a 57.5 kN basic dynamic load rating and 36.0 kN basic static load rating, making it suitable for a range of industrial rotating equipment.
The 6212 supports rotating motor shafts and handles radial loads as well as axial loads in both directions during continuous operation.
The 6212 provides stable shaft support in pumps and compressors while accommodating the combined radial and axial loads generated during rotation.
The 6212 supports rotating shafts and rollers in conveyor and material handling systems where reliable operation under continuous radial loading is required.
The 6212 supports rotating components in agricultural equipment and helps maintain smooth shaft rotation under radial and axial loading conditions.
The 6212 provides low-friction shaft rotation and supports rotating components in textile and other general industrial machinery.
Feedback from procurement teams, maintenance engineers, and industrial equipment buyers regarding the 6212 deep groove ball bearing.
We used the 6212 deep groove ball bearings for electric motor maintenance. The 60 × 110 × 22 mm dimensions matched our equipment requirements, and the bearings ran smoothly after installation.
We purchased 6212 bearings for rotating equipment used in our production line. The dimensional specifications were clear, and the samples helped our engineering team confirm compatibility before the production order.
We selected the 6212 deep groove ball bearing for industrial pump equipment where both radial and axial loads need to be considered. The bearing size was suitable for our shaft and housing arrangement, and the samples performed well during testing.
Watch these 6212 bearing videos to learn more about the bearing size, construction, sealing options and applications.
Answers to common questions from engineers and buyers evaluating the 6212 deep groove ball bearing, including dimensions, load capacity, overheating, vibration and internal clearance.
The standard 6212 deep groove ball bearing has a 60 mm bore, 110 mm outside diameter, and 22 mm width, making these three dimensions the first specifications to verify when checking shaft and housing compatibility.
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For the standard NSK 6212, the basic dynamic load rating is 57.5 kN and the basic static load rating is 36.0 kN; actual bearing suitability depends on the applied radial and axial loads, speed, lubrication, mounting, and required service life.
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6212 overheating can be related to excessive speed or load, insufficient or unsuitable lubrication, incorrect shaft or housing fits, inadequate internal clearance, contamination, or mounting problems, so the operating conditions should be checked before replacing the bearing.
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Abnormal noise or vibration can result from contamination, insufficient lubrication, incorrect installation, misalignment, excessive loading, or damage to the raceways and rolling elements, so checking lubrication, mounting accuracy, shaft alignment, and bearing condition is recommended.
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The main difference is radial internal clearance: C3 provides greater internal clearance than normal CN clearance, which can be useful in applications involving higher operating temperatures or certain interference fits, but C3 should not be selected simply because it has the same 60 × 110 × 22 mm boundary dimensions.
