32310 / 7610E Single Row Tapered Roller Bearing 50×110×42.25mm | 4800rpm | -40°C~+120°C | Automotive, Tractor & Industrial Machinery Bearing

The 32310 (ISO/DIN designation) is a Single Row Tapered Roller Bearing with boundary dimensions of 50×110×42.25mm, manufactured to DIN ISO 355 / DIN 720 standards. Also designated 7610E under the GOST system, it is fully interchangeable with FAG 32310-A, NSK HR32310J, NTN 32310U, SKF 32310B, and Timken 32310.

With a reference speed of 4,800 rpm (grease lubrication) and limiting speed up to 6,300 rpm, the 32310 delivers outstanding high-speed performance for a 50mm bore tapered roller bearing. Its wide operating temperature range of -40°C to +120°C ensures reliable performance in extreme cold-start conditions (arctic mining, outdoor construction) as well as high-temperature industrial environments.

Engineered for high-speed rotation and vibration environments, the 32310 / 7610E is specifically proven in demanding applications including automotive drivetrains, agricultural machinery, and industrial gearboxes. At just 1.89 kg, it is the most compact and lightweight member of the 323xx series at this bore size, delivering an exceptional load-to-weight ratio.

Product Specifications

Key Features & Engineering Advantages

• ✅ Single Row Tapered Roller Design (DIN ISO 355 / DIN 720) — Handles combined heavy radial and axial loads in one direction; separable design allows independent mounting of inner and outer rings

• ✅ Up to 6,300 rpm Limiting Speed — Among the highest limiting speeds in the 323xx series, enabling use in high-speed automotive transmissions, tractor PTOs, and industrial gearboxes

• ✅ 4,800 rpm Reference Speed (Grease) — High grease-lubricated reference speed reduces maintenance complexity and cost in field applications

• ✅ -40°C ~ +120°C Operating Range — Wide thermal operating envelope ensures reliable cold-start performance in arctic/outdoor environments and sustained operation in high-temperature industrial settings

• ✅ Lightest in Class at ≈1.89kg — Most compact and lightweight member of the 323xx series at 50mm bore, ideal for weight-sensitive automotive and agricultural drivetrain applications

• ✅ High-Speed & Vibration Proven — Specifically engineered and field-proven for high-speed rotation and vibration environments including automotive and agricultural machinery

• ✅ Steel Sheet Metal Window Cage — Roller-guided cage provides superior roller guidance, retention, and lubrication distribution under high-speed and high-load conditions

• ✅ Separable Design — Inner ring (cone) and outer ring (cup) are separable, facilitating easy installation, adjustment, and replacement in the field

• ✅ Adjustable Preload / Clearance — Can be used adjusted or in pairs, enabling precise axial preload setting for stiff shaft arrangements

• ✅ HRC 60–64 Hardness — Premium GCr15/52100 chrome steel with precisely controlled hardness for exceptional wear resistance and fatigue life

• ✅ Full Global Interchangeability — Directly interchangeable with FAG 32310-A, NSK HR32310J, NTN 32310U, SKF 32310B, Timken 32310

• ✅ Multi-Precision Options — P0/P6/P5/P4/P2 precision grades available for standard to ultra-precision applications

Typical Applications

Based on the bearing's 50mm bore, 6,300rpm limiting speed, -40°C~+120°C operating range, and proven high-speed vibration resistance:

Cross Reference / Interchange

Series Context — 32310 within the 323xx Single Row Tapered Roller Bearing Series

Key Series Insights:The 32310 (50×110×42.25mm, 1.89kg) is the lightest and most compact entry in the 323xx heavy-duty series shown — ideal for 50mm shaft applications where weight, space, and high-speed performance are all criticalIts 6,300rpm limiting speed is the highest in the 323xx series shown, making it uniquely suited for the most speed-demanding 50mm shaft applicationsThe -40°C ~ +120°C operating range is the widest confirmed thermal envelope in the series, enabling deployment in the most extreme environmental conditionsThe 323xx series provides full GOST / ISO / DIN cross-compatibility, ensuring seamless interchangeability with all major global bearing brands including SKF, FAG, Timken, NSK, and NTN

Export & Logistics Notes for 32310 / 7610E

• Standard Export Packaging — Individual box + outer carton or custom packaging per customer requirements; multiple units per carton for cost-efficient shipping

• Fast Delivery — Standard orders: 3–7 days from stock; DHL/FedEx/UPS express available (VIP member rates ~15% savings)

• Global Shipping — LCL/FCL ocean freight, air freight, express courier — all options available

• Full Export Documentation — Certificate of Origin (CO), material certificates, quality inspection reports, packing lists

• OEM / Private Label — Custom branding & packaging available for distributors and OEM customers

• Technical Support — 24-hour online technical support for installation, lubrication, and application engineering

• Global Network — Offices/agents in 30+ countries and regions

Why Choose NEXANS Bearing for 32310 / 7610E?

Since 1997, Liaocheng Nexans Bearing Co., Ltd has been a trusted factory-direct manufacturer and global supplier of tapered roller bearings across automotive, agricultural, industrial, and heavy machinery sectors.

• Factory-Direct Pricing — No middlemen, competitive wholesale rates

• Large Ready Stock — 20,000+ bearing models in inventory, including full 323xx series

• Flexible MOQ — Single-unit replacement orders to bulk OEM contracts

• OEM / Private Label — Custom branding & packaging available

• Full Export Documentation — CO, quality certificates, professional export packaging

• Global Network — Offices/agents in 30+ countries and regions

• 24/7 Technical Support — Expert application engineering support for clearance, precision grade, and lubrication recommendations

Get a Quote Now

Email: export@nksbearing.com WhatsApp: +86-15562839480 Website: www.nksbearing.com

NEXANS Bearing — Your trusted factory-direct partner for tapered roller bearings since 1997.