Notizie

L44643 Tapered Roller Bearing | L44643/L44610 SET14

L44643 is the cone assembly, which contains inner ring, tapered rollers and steel cage. Pair it with cup L44610 for a complete bearing set. The industry also calls this full assembly SET14. It belongs to ABMA inch series single row tapered roller bearing. Customers in North America use it heavily for 1-inch trailer spindle replacement.

Dimensions

Technical Specifications

• Basic dynamic load rating Cr: 35600 N
• Basic static load rating Cor: 32900 N
• Contact angle: 14°
• Axial load factor e=0.37; Y=1.6
• Total weight: around 0.1 kg (0.3 lb)
• Structure: Open type, no built-in seal
• Standard precision: ABMA Class4 (ISO P0). Upgrade to P6 precision upon request
• Working temperature range: -40℃ ~ +120℃
• Reference speed: 8700 rpm with grease lubrication. Lubrication and preload affect actual speed limit.

Material & Product Features

We build this bearing with premium AISI 52100 / GCr15 chrome bearing steel. Rollers and raceways reach surface hardness HRC 58–62. The core material keeps good toughness to resist impact and contact fatigue wear.

Standard design uses stamped steel cage. The cage separates tapered rollers evenly and stops roller slip or uneven wear. You can choose brass or nylon cage for special working conditions.

The separable cone and cup design helps workers install, take apart and maintain the bearing easily onsite. This bearing handles combined radial load and one-way axial thrust. Install two sets back-to-back if you need to bear bidirectional axial force.

Typical Applications

• Light utility trailer axles and boat trailers (2000lb class 1-inch spindle, top replacement part in North America aftermarket)
• Light agricultural machinery wheels and lawn mower hubs
• Light-duty automotive half shafts and small construction machinery wheel hubs
• Conveyor rollers and small gearboxes

Installation, Lubrication & Notes

• Never hit rollers or cage directly during installation. Only apply press force on cone end face for shaft mounting or cup end face for housing mounting.
• Use high-temperature lithium base hub grease and refill grease regularly. The open structure relies on matched oil seals to block mud, water and dust.
• You must set axial preload for cuscinetti a rulli conici. Preload directly changes service life, internal clearance and temperature rise. Follow standard torque preload rules for trailer hubs.
• L44643/L44610 works as a global standard interchangeable part. Timken, Koyo, NSK and Peer equivalents fit the same assembly. Do not mix it up with KL44643. KL44643 uses different bore size and cannot replace L44643.

Our Supply Advantage

We manufacture and wholesale L44643/L44610 cuscinetti a rulli conici directly from factory. We accept small trial orders and large bulk orders. Our team inspects every bearing strictly before shipment and follows ISO 9001 quality control.

We offer custom packaging and private label marking service. Send us your axle parameters if you feel unsure about interchangeability or working conditions. Our engineering team confirms the cuscinetto corretto model for your project.

We ship in-stock items fast. Contact our sales team to get the latest quotation.

FAQ

Q: What is L44643?
A: L44643 means the cone (inner assembly). It must match cup L44610. People call the full bearing set SET14.

Q: Can L44643 replace KL44643?
A: No. KL44643 has different bore dimensions. The two models do not interchange.

Q: Where do people use L44643 bearing?
A: It fits 1-inch trailer spindles, boat trailers and agricultural wheel hubs widely.

Q: Does this bearing have seals?
A: No, it is open type. You need separate oil seals to protect the bearing from contamination.