Product Overview

Agricultural Bearing Units are heavy-duty, highly specialized mounted bearing assemblies specifically developed to withstand extreme field environments, including continuous mud, heavy dust, moisture, crop residue, and severe dynamic impact loads. Engineered with reinforced cast iron or stamped steel housings and high-strength GCr15 Chrome Steel insert bearings, these units feature advanced multi-lip sealing structures (such as triple-lip or quad-lip contact seals with outer steel armor flingers) to prevent contaminant ingress and retain internal grease under aggressive operating conditions. Available in square flange, round flange, hex-bore, and disc harrow configurations, agricultural bearing units are widely deployed across soil cultivation equipment, disc harrows, seed drills, combine harvesters, balers, and fertilizer spreaders.

Key Features & Advantages

Extreme Multi-Lip Sealing Protection: Equipped with multi-lip (Triple-Lip / Quad-Lip) contact rubber seals paired with heavy-duty metal armors and flingers to provide impervious protection against slurry, soil, wrap-around crop fibers, and high-pressure washing.

Superior Shock & Load Resistance: Constructed with high-strength GCr15 bearing steel and reinforced ductile or gray iron housings to endure high radial loads, axial thrust, and severe ground shock impacts during field operation.

Self-Aligning & Flexible Mounting: Spherical outer ring design accommodates initial mounting errors, frame flex, and shaft deflection common in wide agricultural machinery.

Specialized Bore Options: Available in standard cylindrical, square, hex (hexagonal), and disc harrow specialized bores for direct shaft attachment without keyways or slipping.

Maintenance-Free or Relubricable Configurations: Offered as pre-greased maintenance-free sealed units for zero downtime, or equipped with grease fittings for routine seasonal re-lubrication.

Model No.	Shaft / Bore Type	Shaft Dia / Spec	Flange / Housing Type	Bolt Hole Pitch [mm]	Unit Weight [kg]
ST 491A	Square Bore	38.1 mm (1.5")	Square 4-Bolt Flange	127	3.2
GW 211PPB13	Square Bore	38.1 mm (1.5")	Round Disc Harrow Unit	120	4.1
W 208PPB5	Hex Bore	31.75 mm (1.25")	Round Flange Unit	100	1.85
FD 209 RM	Cylindrical Bore	45.0 mm	Heavy Square Flange	114	3.5
UCF 208-24 AG	Round Bore	38.1 mm (1.5")	4-Bolt Cast Flange	102	1.9
UCP 209 AG	Round Bore	45.0 mm	Pillow Block Unit	146	2.2
Fafnir / ST 208	Square Bore	30.0 mm	Disc Harrow Bearing	100	2.1
RCJ 1.1/2 AG	Round Bore	38.1 mm (1.5")	Cast Iron Flange	101.5	2.4
DHU 1.1/2 S	Square Bore	38.1 mm (1.5")	Disc Harrow Unit	127	4.5

FACTORY WORKSHOP

We continually invest in research and development to enhance our product offerings and manufacturing processes. Our goal is to maintain our position as a leader in the industry while embracing new technologies and trends that shape the future of metal production.

Factory workshop

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With a strong export network, Shandong Lu Tisco Stainless Steel Co., Ltd. serves clients across the globe. Our dedicated customer service team ensures that every client receives personalized attention, timely deliveries, and support throughout the product lifecycle.

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Agricultural Bearing Units