LKF216-2F 4-Bolt Flange Bearing With H2316 Sleeve, Double 2F Mud-Proof Seals

1. Product Overview

LKF216-2F+H2316 full square four-bolt flange bearing assembly consists of F216 cast iron 4-bolt housing, UK216-2F tapered bore insert bearing and complete H2316 adapter kit (KM16 lock nut + MB16 lock washer). Double-sided 2F composite seal adopts metal flinger + NBR double-lip rubber two-stage barrier to block mud, crop residues, heavy dust and cooling water splashes. 1:12 taper bore matched with H2316 sleeve fits smooth 70mm solid shafts without stepped shaft machining, delivers uniform full-circle clamping force for stable bidirectional rotation under heavy vibration. Spherical outer ring provides ±2.5° self-alignment to compensate shaft installation deflection and misalignment. Side grease nipple supports periodic re-lubrication. Widely used on large grain harvesters, heavy belt conveyors, grain sorting lines and heavy feed processing equipment.

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2. Key Advantages

• Dual 2F anti-fouling sealing system: Outer metal flinger throws off mud clumps via centrifugal rotation force; inner rubber lip isolates fine dust and water mist, far superior anti-mud performance than single-layer 2S rubber seals for muddy field working environments.
• H2316 taper sleeve locking structure: Even full-shaft circumferential clamping without shaft surface scratches, reliable anti-loosening under long heavy vibration and frequent forward/reverse rotation.
• HT200 grey cast iron square flange housing, high integral structural rigidity, thick wall anti-impact, flat mounting surface for quick bolt fixing and easy disassembly for routine maintenance.
• ±2.5° self-aligning spherical outer ring automatically eliminates assembly offset internal stress, reduces abnormal bearing friction, wear and running noise.
• Reserved side grease fitting hole for regular supplementary lubrication, extends bearing service life and cuts equipment shutdown maintenance downtime.
• GCr15 fully heat-treated bearing steel, high dynamic & static load capacity, excellent wear resistance and impact resistance for continuous heavy-duty non-stop operation.
• Standard unified metric dimensions, fully interchangeable with single-seal LKF216+H2316 for direct heavy mud-proof sealing upgrade.

Lower overall maintenance cost and guarantee stable long-term transmission operation of heavy agricultural & industrial machinery

3. Applications

• Large grain harvesters, heavy field rotary tillers
• Heavy-duty belt conveyors, grain drying & sorting production lines
• Large feed processing equipment, light mining transport rollers
• Dusty, humid, muddy indoor and semi-outdoor heavy production equipment

4. Technical Specifications

Dimension drawings and official spec sheets can be provided upon request

5. Why Choose GQZ Bearing

• 25+ years professional manufacturer of tapered bore flange bearing + adapter sleeve integrated assemblies.
• Every production batch passes mud resistance aging, vibration endurance and heavy load durability tests before delivery.
• Support OEM custom anti-rust coating, housing surface paint color, special high/low temperature grease and personalized sealing upgrade schemes.
• Fast formal quotation and one-on-one professional installation technical support within 24h for all RFQs.
• Stable large-scale mass production capacity to meet long-term repeated bulk procurement demands of global machinery manufacturers.

Factory direct supply price, consistent stable quality and punctual batch delivery for overseas machinery buyers

6. Quality Assurance

• Raw GCr15 bearing steel chemical composition & hardness inspection
• HT200 cast iron housing tensile strength & toughness test
• High-precision raceway grinding surface roughness detection
• 2F double composite seal mud splash cycle aging durability test
• H2316 sleeve matching tightness & anti-slip vibration impact test
• Low-noise continuous rotation heavy load performance test
• Full dimension tolerance sorting & 100% visual appearance inspection before packaging
• Random finished assembly sampling inspection before shipment

All LKF 216 2F + H2316 bearing sets pass multi-process strict quality inspection before leaving factory

8. FAQ

Q1: What’s the core advantage of 2F double composite seal vs ordinary single-layer 2S rubber seal?
2F two-stage composite protection structure: outer metal flinger first throws away large mud blocks and coarse dust via centrifugal rotation, inner double-lip rubber secondary seal blocks fine dust and water mist, greatly reduces mud intrusion risk and extends service life in muddy field environments.

Q2: What shafts can match LKF 216 2F + H2316?
It fits standard smooth 70mm cylindrical solid shafts with supporting H2316 taper sleeve, no stepped shaft machining required during installation.

Q3: Can LKF 216 2F + H2316 directly replace ordinary single-seal LKF216+H2316?
Yes, shaft matching size, flange mounting hole layout and all overall outer dimensions follow unified international metric standards, no modification to equipment mounting base during replacement.