SSA201-8 Agricultural & Industrial Insert Ball Bearing (1/2" Bore) ── 1/2" x 40mm x 28.6mm (0.500" Shaft) | Eccentric Locking Collar Insert Unit | Replaces Timken Fafnir RA008RRB, SKF YET 201-008, FYH SAA201-8, NTN AE201-008D1, Link-Belt SAB201-8
Precision-engineered for agricultural machinery, light-to-medium power transmission drives, conveyor rollers, and crop processing machinery, the SSA201-8 eccentric locking collar insert ball bearing features exact physical dimensions of 1/2" Bore/Shaft (12.7mm / 0.500") x 40mm Outer Ring Diameter (1.575") x 28.6mm Overall Width/Depth (1.126"). Built with a narrow inner ring, eccentric locking collar mechanism for positive shaft locking in single-direction rotation, and heavy-duty contact rubber seals, pre-packed with wide-temperature synthetic grease to eliminate routine field maintenance while completely locking out dirt, dust, and moisture. Direct cross-reference replacement for Fafnir / Timken RA008RRB, SKF YET 201-008, FYH SAA201-8, NTN AE201-008D1, and Link-Belt SAB201-8.
✦ Technical Specifications & Brand Interchange Matrix
Bearing Part Number: SSA201-8 / RA008RRB (Eccentric Locking Collar Insert Bearing)
Precise Physical Dimensions:
Inner Diameter (Shaft Bore - d): 1/2 in (12.7 mm / 0.500 in)
Outer Ring Diameter (OD - D): 40 mm (1.575 in)
Overall Inner Ring & Collar Width (B): 28.6 mm (1.126 in)
Major Brand Cross-References:
Fafnir / Timken: RA008RRB
SKF: YET 201-008
FYH: SAA201-8
NTN: AE201-008D1
Link-Belt / Rexnord: SAB201-8
⚡ Structural Advantages & Heavy-Duty Performance
Positive Eccentric Locking Collar Mechanism: Designed with a precision mating cam collar that grips the shaft securely in the direction of rotation, preventing slippage and shaft fretting.
Spherical Outer Ring Design: Self-aligning outer ring profile compensates for initial static misalignment during mounting into pressed steel or cast iron pillow block housings.
Heavy-Duty Rubber Contact Sealing: High-efficiency contact seals form an airtight defensive shield against moisture, crop dust, slurry, and abrasive dirt contamination.
Maintenance-Free Synthetic Pre-Lubrication: Factory pre-filled with wide-temperature agricultural synthetic grease, eliminating daily field routine servicing and lubricant washout.
🚜 Agricultural Machinery Deployment & Usage Scenarios
Agricultural Machinery & Implements: Direct fit insert bearing for grain handling augers, seeders, balers, sorters, and rotary cutters using 1/2" shafts.
Conveyor Systems & Processing Lines: Essential insert unit for agricultural crop sorting conveyors, packaging machinery, and power transmission shafts.
Pillow Block & Flange Housings: Fits standard 40mm spherical housing bores (pressed steel or cast iron housing assemblies).
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