GQZ W208PPB5 Spherical Outer Square Bore Agricultural Ball Bearing 31.75mm Square Shaft 80mm Outer Diameter Multi Lip Seal

The W208PPB5 is heavy-duty agricultural square bore ball bearing with spherical outer ring and multi-layer composite mud-proof seals. Designed for 1-1/4 inch square drive shafts, widely matched to disc harrows, round balers and combine harvesters. Spherical outer surface provides self-aligning function to compensate minor assembly misalignment. Fully sealed non-relubricated structure, ideal interchange spare part for various farm tillage equipment.

• Special square inner bore tightly locks agricultural square shafts to prevent slipping under heavy field load
• Spherical outer ring realizes self-alignment to absorb minor installation misalignment
• Multi-layer reinforced seals effectively block mud, crop residues, dust and water splash
• High toughness bearing steel withstands continuous vibration and impact during field operation
• Factory pre-filled long-life agricultural grease, maintenance-free sealed structure
• Custom options: OEM laser marking, anti-rust surface treatment, special low-temperature grease

This bearing is widely used in:

• Disc harrow, soil tillage and planting agricultural machinery
• Round baler, rotary rake and combine harvester transmission parts
• Farm grain conveying and straw crushing equipment
• Agricultural roller hubs and land preparation machinery

• 25+ years experience in agricultural special bearing manufacturing
• Exported to 50+ countries worldwide
• Rich experience in OEM & interchange square bore farm bearing projects
• Strict full-process quality inspection before shipment
• Fast response within 24 hours for technical consultation
• Stable bulk supply for agricultural machinery aftermarket distributors

• Raw material hardness inspection for GCr15 bearing steel
• Precision grinding & superfinishing of raceway and square bore
• Heat treatment metallurgy and hardness control
• Seal tightness, load & rotation smoothness testing
• Final dimensional and appearance inspection before delivery

Looking for a reliable bearing supplier?

• Fast quotation within 24 hours
• Professional engineer technical support
• Custom bearing solution suggestions
• Competitive factory direct price

8. FAQ

Q1: Can you provide custom bearings?

Yes, we support OEM and custom production based on drawings and load requirements.

Q2: What is your delivery time?

Standard models: 7–15 days

Custom products: depending on specifications

Q3: Do you support large bulk orders for agricultural aftermarket?

Yes, we provide stable mass supply for long-term cooperative distributors.