1210k Bearing

1.Product Introduction: The model of self-aligning ball bearings (1210K), with an inner diameter of 50mm. The "K" indicates a tapered hole (with a taper of 1:12), suitable for tight-fitting shaft systems to prevent loosening.
2.Structure Type: Inner ring (with tapered hole 1:12) + outer ring (with spherical raceway) + single-row steel balls + engineering plastic cage, featuring an open design (which can be equipped with oil seals).
3.Size Range: Inner diameter: 50mm (tapered hole 1:12), outer diameter: 90mm, width: 20mm.
4.Material: Inner ring / outer ring: GCr15, rolling elements (steel balls): GCr15, cage: engineering plastic.
5.Accuracy: Conventional P0 grade, heavy-duty precision models are of P6 grade.
6.Application Fields: Heavy-duty motors (7.5kW), mining machinery (small crushers), auxiliary shafts of machine tools (with tight-fitting requirements), conveyors.
7.Key Inspection Items: Taper accuracy of the tapered hole (1:12 ± 0.001), conformity of the inner ring fitting with the shaft, radial load-bearing capacity (≥ 30kN).

Product Description

1210K Bearing – High-Load, High-Temperature Self-Aligning Solution

When your machinery operates under extreme stress, the 1210K bearing delivers unmatched reliability. Designed with a 1:12 tapered bore for secure shaft fitting, this self-aligning ball bearing combines 30+ years of metallurgical expertise with precision engineering. Ideal for mining crushers, heavy-duty motors, and high-heat kilns, the product compensates for shaft misalignment while maintaining P0/P6-grade performance in demanding bearing applications.

Technical Specifications

Parameter Specification
Dimensions ID 50mm (Tapered 1:12) × OD 90mm × Width 20mm
Load Capacity Static 45kN | Dynamic 72kN load handling for ball bearings
Material & Precision GCr15 Chrome Steel (Heat-treated); Standard P0 to P6 precision bearings
Temperature & Noise -30°C to +150°C (custom high-temp options); Noise level <40dB

Key Advantages

  • Precision Tapered Bore Design: The 1:12 taper ensures a vibration-free fit on shafts, critical for high-RPM spindle bearings.
  • Self-Aligning Capability: Compensates for shaft misalignment up to 3° in heavy-duty self-aligning bearings.
  • Triple-Layer Quality Assurance: XRF material checks, laser scanning taper validation (±0.001mm), and 500-hour load lifespan testing for ball bearings.

Where the 1210K Bearing Excels

  • Mining & Metallurgy: Absorbs shock loads up to 30kN in crushers and continuous rolling mill roller bearing setups.
  • Heavy-Duty Motors: Self-aligning geometry corrects motor shaft deviations in industrial bearing assemblies.
  • Conveyor Systems: Specialized cages resist dust and particle ingress in mining and port crane bearings.

Customization & Logistics

Need a sealed variant or high-precision P6 1210K bearing? Modular production delivers prototypes in 72 hours and full custom batches in 15 days. Standard ball bearings ship within 48 hours from regional hubs.

FAQs

Q: Can the 1210K bearing handle saltwater exposure in port cranes?
A: Yes! Optional zinc-nickel coatings provide enhanced corrosion protection for marine crane bearings.

Q: How do I prevent premature wear in high-vibration self-aligning bearings?
A: Pair the 1210K bearing with specialized shock-absorbing NBR or bronze cages.

Q: Do you offer IoT-enabled self-aligning ball bearings?
A: Yes, Smart 1210K bearing variants include embedded sensors for real-time temperature and load tracking.

Contact Us

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