Air Conditioner Compressor - Used No. 45 Steel 42-mm Needled Component with Sleeve

1. Precision Bearings

• Roundness of inner and outer rings maintained within a few microns for smooth rotation and reduced vibration.
• Surface finish of raceways with roughness value Ra 0.1 - 0.2 μm to minimize friction and wear.
• Designed to operate at high speeds (up to tens of thousands of revolutions per minute).
• Capable of withstanding significant radial and axial loads (e.g., medium - sized bearing: radial load of several thousand Newtons, axial load of several hundred Newtons).

• Rigorous inspection of raw materials for chemical composition and mechanical properties.
• Dimensional inspections at multiple manufacturing stages.
• Comprehensive performance tests including high - speed running, vibration, noise, temperature rise, and load - carrying capacity assessment.

• For small - quantity or urgent orders: Express shipping via DHL, FedEx, or UPS, delivering within 3 - 5 business days.
• For large orders: Sea freight with reliable shipping lines; products carefully packaged in sturdy boxes with cushioning.

• Order placement: Through online trading platform integrated with [Trading Platform Name] or via email.
• Payment methods: Telegraphic Transfer (T/T), Letters of Credit (L/C) for large transactions, and PayPal for small orders.

2. High - Performance Seals

• Provide reliable leak - tight seal under different pressures (e.g., up to several hundred bar in hydraulic systems).
• Operate in a wide temperature range (- 50°C to + 250°C depending on material).
• Have good wear resistance for continuous movement and friction applications.
• Maintain sealing integrity over an extended period in aggressive chemical or extreme - temperature environments.

• Thorough testing of raw materials from reputable suppliers.
• Careful molding and curing during manufacturing for proper shape and dimensional accuracy.
• Series of tests including pressure, temperature cycling, and chemical resistance; visual inspections for defects.

• For small - volume orders: Express delivery for quick receipt.
• For large orders: Sea freight with secure packaging in air - tight plastic bags and cardboard boxes.

• Order placement: Through dedicated e - commerce platform on [Trading Platform Name] or via email.
• Payment methods: T/T, L/C for large transactions, and popular international payment platforms.

3. Precision Machined Shafts

• Tight dimensional tolerances (within a few thousandths of an inch).
• High - degree roundness to ensure smooth rotation and reduced vibration.
• Surface finish with roughness value Ra 0.4 - 0.8 μm to reduce friction and wear.
• Withstand high axial and radial loads and operate at high speeds (thousands of revolutions per minute).

• Inspection of raw materials for chemical composition and mechanical properties.
• Precision measurement during machining to control dimensional accuracy.
• Hardness testing, surface roughness measurement, dimensional inspection, and mechanical performance tests under simulated conditions.

• For small - quantity orders: Express courier services like DHL, FedEx, or UPS for fast delivery.
• For large orders: Sea freight with careful packaging in custom - made wooden crates or cardboard boxes with cushioning.

• Order placement: Through online trading platform on [Trading Platform Name] or via email.
• Payment methods: T/T, L/C for large transactions, and open to discuss other convenient options.