Overview
The MRC C2F30ZM is a 2-bolt flange-mounted ball bearing unit manufactured by MRC Bearing Services (division of SKF Group). This Marathon series bearing features a 30mm bore diameter and thermoplastic composite housing with corrosion-resistant properties. The double-sealed, single-row ball bearing insert is coated with MRC’s proprietary ZMaRC zinc material for superior protection in washdown and chemical-rich environments. Designed for mounting perpendicular to the shaft axis, this flange bearing delivers reliable radial load support for conveyors, fans, processing equipment, and general industrial machinery.
Key Features
- 30mm shaft bore diameter for metric applications
- 2-bolt flange mount configuration with reinforced stainless steel bolt holes
- Thermoplastic composite housing resists corrosion from food and beverage processing chemicals
- Double-sealed single-row ball bearing insert with double-lip AISI 304 stainless steel contact seals
- ZMaRC zinc-coated insert for washdown and chemical resistance
- Set-screw locking mechanism (two setscrews, 120-degree spacing) for secure shaft retention
- Relubrication capability via grease fitting on housing
- USDA food-grade grease applied at manufacture; lifetime lubrication
- Stainless steel flingers provide additional sealing protection
Technical Specifications
- Bore Diameter: 30mm (1.181 inches)
- Flange Mount Style: 2-Bolt
- Housing Material: Thermoplastic composite with embedded steel reinforcement coils
- Bearing Type: Single-row ball bearing
- Locking Device: Set-screw locking inner ring
- Insert Coating: ZMaRC (proprietary zinc material)
- Seals: AISI 304 stainless steel double-lip contact seals + stainless steel flingers
- Weight: 0.97 lbs (0.44 kg)
- Series: MRC Marathon C2F-ZM
- Lubrication: USDA food-grade grease (lifetime)
Typical Applications
The MRC C2F30ZM excels in demanding industrial environments where corrosion and contamination are primary concerns:
- Food and beverage processing machinery (washdown-safe design)
- Conveyor systems and belt drives
- Fans and blower equipment
- Construction machinery
- Agricultural equipment
- General-duty shaft support in low-to-moderate speed applications
Compatibility & Replacements
Compatible With
- Any equipment designed for 30mm bore metric flange-mount bearings
- Shaft diameters compatible with 30mm bore insert (verify OD tolerances with documentation)
- Food-grade equipment requiring HACCP compliance
- Machines using metric bearing standards
Replaces / Drop-In Replacement For
- Older MRC C2F30ZM units (direct replacement)
- Compatible with C2F30ZMG (relubricatable variant) for non-expansion applications
- Verify bearing bore and flange mounting dimensions before substitution
Works With
- Set-screw shaft locking (standard tool installation)
- Grease-based lubrication systems
- Industrial bearing mounting surfaces and structural steel
- No special software or electronic integration required
