SSA206-20 Eccentric Locking Collar Insert Bearing ── 1-1/4" x 62mm x 35.7mm (1-1/4" Bore) | Heavy-Duty Agricultural & Industrial Spherical Outer Ring Unit | Replaces Fafnir RA104RRB, NTN AEL206-104, SKF YET206-104W, AMI KH206-20, Link-Belt L-20E
Precision-engineered for heavy-duty agricultural machinery, crop harvesting equipment, industrial conveyors, ball bearing pillow blocks, and power transmission shafts, the SSA206-20 eccentric locking collar insert bearing features exact physical dimensions of 1-1/4" Shaft Bore (31.75mm) x 62mm Outer Diameter (2.441") x 35.7mm Inner Ring/Collar Width (1.406"). Built with a spherical outer ring, an extended inner ring with a secure eccentric locking collar, and high-efficiency contact rubber seals, pre-packed with wide-temperature synthetic grease to prevent shaft slippage while locking out dust, moisture, and agricultural grit. Direct cross-reference replacement for Fafnir / Torrington RA104RRB, NTN AEL206-104, SKF YET206-104W, AMI KH206-20, and Link-Belt L-20E.
✦ Technical Specifications & Brand Interchange Matrix
Bearing Part Number: SSA206-20 / RA104RRB (Eccentric Collar Insert Bearing)
Precise Physical Dimensions:
Inner Diameter (Shaft Bore - d): 1-1/4 in (31.75 mm)
Outer Diameter (OD - D): 62 mm (2.441 in)
Inner Ring & Collar Width (B/S): 35.7 mm (1.406 in)
Major Brand Cross-References:
Fafnir / Torrington: RA104RRB
NTN: AEL206-104
SKF: YET206-104W
AMI: KH206-20
Link-Belt / Rexnord: L-20E
⚡ Structural Advantages & Heavy-Duty Performance
Positive Eccentric Collar Locking: Provides rapid, secure shaft locking in single-direction rotation applications, preventing shaft slippage and fretting corrosion under high rotational torque.
Spherical Outer Ring Alignment: Self-aligning outer ring design compensates for initial shaft misalignments and mounting surface deflection.
Heavy-Duty Multi-Lip Sealing Protection: High-efficiency contact rubber seals form an airtight barrier against moisture, mud, slurry, and abrasive crop dust contamination.
Maintenance-Free Synthetic Pre-Lubrication: Factory pre-filled with high-grade wide-temperature agricultural synthetic grease, completely eliminating daily field servicing and lube washout.
🚜 Agricultural Machinery Deployment & Usage Scenarios
Harvesting Equipment & Combine Harvesters: Direct fit replacement for combine grain augers, feeder house shafts, and thresher drive lines requiring a 1-1/4" eccentric lock bearing.
Pillow Block & Flange Units: Ideal insert bearing component for 206 series cast iron pillow block (P206) and 2-bolt/4-bolt flange housings (F206/FL206).
Industrial Conveyors & Farm Drives: Designed for demanding material handling conveyors, grain handling augers, and agricultural implements exposed to severe dust and wet conditions.
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