V-Belt A1600 (A63) Remeza LB50 – for Compressor СБ4/С-100 LB50, Profile A, Lw=1600 mm

The Problem You’ve Already Faced

• The compressor hums but doesn’t pump air. The belt slips on the pulley — pressure doesn’t build up, the motor overheats. Cause: a stretched or oil-contaminated belt.
• The belt snapped at the worst possible moment. Production stopped and the right size isn’t available. The standard A1600 belt should be kept as a spare — it’s a consumable item.
• Bought a “suitable” belt by length, but the wrong profile. A B or Z profile belt looks similar but doesn’t seat properly in the Remeza LB50 pulley groove — pulley wear and repeated failure within 50–100 hours.
• The exact part number is unknown. A1600 and A63 are the same belt, but in different catalogues and from different suppliers they’re marked differently. The confusion leads to ordering errors.
• One belt was fitted instead of a matched set. LB50 runs on two parallel belts — replacing one with the other worn creates a length mismatch and accelerated wear on the new belt.

Every hour of compressor downtime due to a broken belt costs more than a spare set sitting on the shelf.

What Is the A1600 V-Belt for Remeza LB50

A V-belt is the flexible drive element of the belt transmission between the electric motor and the piston block of the compressor. It transfers torque through friction in the tapered grooves of the pulleys.

Breaking down the A1600 designation:

• A — belt profile per GOST 1284.1-89: top face width 13 mm, height 8 mm, wedge angle 40°
• 1600 — inner length of the belt, mm (Li = 1600 mm)
• Lw = 1618 mm — pitch length per ISO 4184 / DIN 2215
• A63 — designation of the same belt under the ISO system (63 × 25.4 mm / 10 = 63 inches inner length ≈ 1600 mm)

These designations are interchangeable: A1600 = A63 = 13×1600 — it is the same belt. When ordering, any of the three designations is sufficient.

The Remeza СБ4/С-100 LB50 compressor uses a belt drive with two parallel profile-A belts. The belts connect the motor pulley (typically smaller diameter) to the flywheel pulley of the piston block. Belt tension is adjusted by sliding the electric motor along rails; the specified deflection when pressing with 10 N force is 10–15 mm per 100 mm of centre distance.

Technical Specifications

💡 Expert tip: always replace both belts simultaneously, even if the second appears visually intact. Belts from the same production batch have matching lengths within ±0.3 mm tolerance. A new belt paired with an old (stretched) one creates a tension imbalance — the new belt overloads and fails 3–5× faster. Always order a set of 2 pcs.

Cross-Reference by Brand

⚠️ Important: profile B belts (17 mm wide) look similar to profile A but don’t seat correctly in a profile-A pulley groove — lateral face contact is lost, transmission efficiency drops by 15–20%, pulley wear accelerates sharply. Always verify the profile, not just the length.

5 mandatory parameters to verify compatibility:

1. Belt profile — must be A (13 mm top face width). Not B, not Z, not SPA.
2. Inner length Li — 1600 mm ± 8 mm per GOST. Deviation over 10 mm means the wrong belt.
3. Number of belts — LB50 runs as a pair; replace as a set.
4. Pulley condition — worn pulley grooves destroy a new belt in 200–300 hours. Check with a gauge template before fitting a new belt.
5. Tension after fitting — 10–15 mm deflection at the mid-span of the free side when pressing with 10 N. Overtightening loads the block bearings.

Why Acvatron SRL — 5 Solid Reasons

Technical Selection by Compressor Model

Tell us the model — we confirm the part number and quantity. LB50 and LB40 use belts of different lengths (A1600 and A1400 respectively) — self-selection errors are more common than expected.

Full Documentation

Every item ships with an invoice listing the product name, customs tariff code, and manufacturer. For companies maintaining maintenance records — a complete document package for expensing the consumable.

Stock in Chisinau

Belts for the main Remeza models (LB30, LB40, LB50, LB75) are held in permanent stock. Same-day dispatch for orders placed before 14:00.

Sold as a Set

We supply belts in matched pairs of 2 — as the LB50 drive requires. No need to re-order a week later when the second belt fails.

Complete Remeza Support

Beyond belts we stock: air filters, valves, piston rings, connecting rods, oil — everything for Remeza LB-series maintenance. One request — one supplier.

Applications

Automotive Service and Tyre Fitting

• Air supply to pneumatic tools
• Tyre inflation and bead seating
• Bodywork spray painting

Construction and Manufacturing

• Pneumatic tool supply (breakers, impact wrenches)
• Equipment blow-off and cleaning
• Abrasive blasting

Woodworking and Furniture Production

• Pneumatic nail guns
• Compressor air supply for spray finishing systems

Expert Opinion

“The belt is the cheapest consumable on a compressor — and it’s the one people cut corners on most often. They buy one instead of two, fit an aftermarket with a 12 mm length tolerance, skip checking the pulleys before replacement. The result: the new belt snaps after 200 hours and the customer thinks they were sold a substandard part. Three rules I give everyone: replace in pairs, check the pulley with a template, set tension by deflection — not by feel. Follow all three and the LB50 belt runs 1,200–1,500 hours without issue.”

Vitalie Bolucevski, Chief Engineer, Acvatron SRL — 15 years in the industry

Applicable standards:

• GOST 1284.1-89 — classical V-belts, standard cross-sections
• GOST 1284.2-89 — technical requirements
• ISO 4184 — classical V-belts
• DIN 2215 — V-belts, European standard

How to Select the Right V-Belt for Your Compressor: 5-Step Guide

1. Identify the exact compressor model. СБ4/С-100 LB50 and СБ4/С-100 LB40 are different models using different belt lengths (A1600 and A1400). Check the nameplate on the compressor casing.
2. Remove the old belt and measure. Inner length is measured around the inner circumference of the removed belt. If the belt has stretched — subtract 10–15 mm from the measured length to get the nominal size.
3. Check the profile. Place the belt in the pulley groove — it should protrude 1–2 mm above the flange rim. If it sinks flush or below — either the profile is too small or the pulley is worn.
4. Order a set of 2 pcs. LB50 has a twin-groove drive. Single-belt replacement is not cost-effective.
5. Check tension after fitting. Mid-span deflection of the free belt side at 10 N applied force — 10–15 mm. Adjust motor position on the rails as needed.

FAQ

❓ What is the difference between A1600 and A63 — are they the same belt?

Yes, they are identical. A1600 is the GOST 1284 designation, where the number is the inner length in mm. A63 is the ISO 4184/DIN 2215 designation, where the number is the length in inches (63 × 25.4 mm ≈ 1600 mm). The pitch length on the neutral axis for both is Lw = 1618 mm. Either designation is sufficient when ordering.

❓ How many belts does a Remeza СБ4/С-100 LB50 compressor require?

Two belts — the LB50 has a twin-groove belt drive. Both the motor and block pulleys have two profile-A V-grooves. Always replace as a matched pair from the same production batch — length variation within a batch is minimal, while variation between batches can reach 8–12 mm.

❓ Where can I buy an A1600 belt for the Remeza LB50 compressor in Moldova?

The A1600 (A63) belt for the Remeza СБ4/С-100 LB50 compressor is in stock at Acvatron SRL, Chisinau. We sell in matched sets of 2 pcs. as required by the drive design. Contact us at acvatron.md or WhatsApp to confirm availability.

Take the Next Step Now

A snapped belt stops the compressor instantly. A spare set on the shelf means production won’t halt over a part worth a few hundred lei.

1. 📞 Call or message us — we confirm availability, verify the model, and process your order.
2. 📋 Receive the invoice — accounting and maintenance expense documentation included.
3. 🛒 Place your order — same-day dispatch.

Acvatron SRL — an engineering approach to every sale.