Overview
The SKF 6306 2ZJEM is a single-row deep groove ball bearing from SKF’s 6300 series, engineered for reliable performance in general-purpose motor and machinery applications. This bearing features double steel shields (2Z designation) that provide protection against contamination while maintaining low friction operation. With a 30 mm bore, 72 mm outer diameter, and 19 mm width, it delivers consistent radial and axial load support across a wide speed range.
Key Features
- Double steel shields (2Z) protect against dirt and debris ingress
- ABEC 3 precision rating ensures smooth, low-noise operation
- C3 internal clearance optimized for motor applications
- Single-row radial design supports both radial and axial loads
- Non-contacting seal design reduces friction and maintenance
- Bearing steel construction with uncoated finish for general industrial use
Technical Specifications
Key performance parameters for the SKF 6306 2ZJEM:
- Bore Diameter: 30 mm
- Outer Diameter: 72 mm
- Width (Thickness): 19 mm
- Dynamic Load Capacity: 29.6 kN (6,654 lbf)
- Static Load Capacity: 16 kN (3,597 lbf)
- Precision Rating: ABEC 3
- Internal Clearance: C3
- Closure Type: Double Shielded
- Number of Rows: Single
- Material: Bearing steel, uncoated
- Seal Type: Non-contacting steel shields
Typical Applications
The SKF 6306 2ZJEM is widely deployed in:
- AC and DC electric motors (single-phase and three-phase)
- Industrial machinery and equipment requiring sealed bearing solutions
- Centrifugal pumps and fans
- Belt-driven equipment with speed ranges up to 14,000 rpm
- Food processing and light industrial environments where contamination protection is essential
Compatibility & Replacements
Compatible With
- SKF 6300 series bearing families (6300, 6301, 6302, 6303, 6304, 6305, 6306, 6307, 6308)
- Standard metric bearing housings (bore fit ∅30 mm)
- Electric motor frames with 30 mm shaft bore
- General industrial machinery with radial/axial load requirements
Replaces / Drop-In Replacement For
- SKF 6306 2Z (non-JEM variant)
- Other SKF 6306 series bearings with similar load ratings
- Equivalent deep groove ball bearings from other manufacturers with matching 30x72x19 dimensions
Works With
- Standard metric bearing cartridges and pillow blocks
- Motor shaft seals and retainer assemblies
- Grease and mineral oil lubrication systems
- Industrial bearing mounting hardware (snap rings, lock rings, locknut arrangements)
