51311 Single Direction Thrust Ball Bearing 55x105x35mm For Crane Jack Heavy Axial Load Industrial Equipment

The 51311 single direction thrust ball bearing consists of shaft washer, housing washer and steel ball assembly, open type structure only bears one-way heavy axial load. It features high axial rigidity and simple installation, suitable for lifting, jack and low-speed heavy thrust mechanical parts.

Model: 51311

Shaft Washer Bore (d): 55mm

Housing Washer OD (D): 105mm

Overall Thickness (T): 35mm

Structure: Single direction thrust ball bearing

Material: High carbon chromium bearing steel

Cage: Stamped steel cage

Seal Type: Open type

• Professional single direction structure supports large unidirectional axial thrust load
• Separable washers for convenient disassembly, cleaning and grease refilling
• Precision ground raceway reduces friction under low-speed heavy thrust operation
• High hardness steel washers provide strong compression and wear resistance
• Custom precision grade and surface anti-rust treatment optional

• Hydraulic jack, lifting crane and vertical press equipment
• Heavy vertical shaft, mining rotary positioning assemblies
• Machine tool vertical spindle and low-speed thrust machinery
• General heavy unidirectional axial load transmission devices

• 25+ years experience in thrust ball bearing manufacturing
• Exported to 50+ countries worldwide
• Rich experience in OEM heavy thrust bearing bulk orders
• Strict dimension, hardness and compression load inspection before shipment
• Fast response within 24 hours
• Stable mass supply for long‑term heavy machinery cooperation

• Raw bearing steel incoming inspection
• Precision grinding for thrust raceway and steel balls
• Strict heat treatment hardness control
• Axial compression durability and dimensional tolerance testing
• Full size inspection before packaging delivery

Get a Quote Now Looking for reliable single direction thrust ball bearing supplier?

• Fast quotation within 24 hours
• Professional thrust bearing technical parameter support
• Custom precision & surface treatment solutions
• Competitive factory wholesale price

Q1: Can this bearing bear radial load?

Mainly for axial load; radial force should be avoided during operation.

Q2: What is your standard delivery time?

Standard 51300 series thrust bearings: 7–15 days Custom special specifications depend on technical parameters

Q3: Do you accept large bulk orders for lifting equipment factories?

Yes, stable continuous mass supply is supported for long-term industrial cooperation.