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Product Overview
B-Series Straight-Plate Roller Chain
The B-Series straight-plate roller chain is the workhorse of industrial conveying worldwide. Straight (flat) side plates distribute tensile load more evenly along the plate body than cranked-plate designs, delivering measurably higher fatigue life under continuous or cyclically loaded conveyor duty — a critical advantage on long-run packaging lines, elevator legs and mining plant drives.
roller-chain-manufacturers.com stocks and manufactures the complete ISO 606 B-series range from C08B through C32B in single (simplex), double (duplex) and triple (triplex) strand configurations. All chains are produced from medium-carbon or alloy steel with precision-ground pins, case-hardened rollers and sintered bushings, and are available pre-lubricated or with optional surface treatments.
Double-pitch conveyor variants (C-prefix) share the same static tensile strength and articulation geometry as standard-pitch counterparts but reduce overall chain mass — a practical weight saving on slow-speed, long-centre conveyors.
Key Features
Flat Side Plates
Higher fatigue life vs cranked-plate chains. Ideal for sustained, high-cycle conveyor runs where plate bending fatigue is the failure mode.
ISO 606 / DIN 8187
Full dimensional compliance. Interchangeable with B-series chains from any ISO-certified manufacturer worldwide — drop-in replacement without re-engineering.
Simplex / Duplex / Triplex
Multi-strand construction multiplies tensile capacity within the same pitch envelope — critical when sprocket diameter is constrained by installation geometry.
Hardened Components
Pins, bushings and rollers individually case-hardened and ground to tight tolerances. Delivers low-noise, low-vibration operation at rated speed.
Wide Pitch Range
C08B (12.7 mm) through C32B (50.8 mm) — from light-duty packaging to heavy mining conveyor drives — in a single coordinated product family.
Surface Options
Zinc-nickel plate, nickel plate, self-lubricating sintered bushing and 304 SS variants available for food-grade, washdown and corrosive environments.
Full Specifications
B Series Roller Chains — Dimensional Data
All dimensions in mm · Tensile strength Q min in kN / lbf · Weight q in kg/m · Standard: ISO 606 / DIN 8187
| Zincir No. | Pitch P (mm) |
Silindir Çapı. d₁ max (mm) |
İç Genişlik b₁ min (mm) |
Pim Çapı. d₂ max (mm) |
Pim Uzunluğu L max (mm) |
Pim Uzunluğu Lc max (mm) |
Plate Depth h₂ max (mm) |
Plate Thick. t/T max (mm) |
Trans. Pitch Pt (mm) |
Tensile Str. Q min (kN/lbf) |
Avg. Tensile Q₀ (kN) |
Ağırlık q (kg/m) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▶ Simplex — Single Strand (×1) | ||||||||||||
| C08B-1 | 12.700 | 8.51 | 7.75 | 4.45 | 16.7 | 18.2 | 11.8 | 1.60 | — | 18.0 / 4,091 | 19.5 | 0.80 |
| C10B-1 | 15.875 | 10.16 | 9.65 | 5.08 | 19.5 | 20.9 | 14.7 | 1.70 | — | 22.4 / 5,091 | 27.9 | 1.06 |
| C12B-1 | 19.050 | 12.07 | 11.68 | 5.72 | 22.5 | 25.2 | 16.0 | 1.85 | — | 29.0 / 6,591 | 32.2 | 1.32 |
| C16B-1 | 25.400 | 15.88 | 17.02 | 8.28 | 36.1 | 39.1 | 21.0 / 24.0 | 4.15 / 3.10 | — | 60.0 / 13,636 | 72.8 | 3.08 / 3.49 |
| C20B-1 | 31.750 | 19.05 | 19.56 | 10.19 | 41.3 | 45.0 | 26.4 | 4.50 / 3.50 | — | 95.0 / 21,591 | 106.7 | 4.16 |
| C24B-1 | 38.100 | 25.40 | 25.40 | 14.63 | 53.4 | 57.8 | 33.2 | 6.00 / 4.80 | — | 160.0 / 36,364 | 178.0 | 7.47 |
| C28B-1 | 44.450 | 27.94 | 30.99 | 15.90 | 65.1 | 69.5 | 36.7 | 7.50 / 6.00 | — | 200.0 / 45,455 | 222.0 | 9.90 |
| C32B-1 | 50.800 | 29.21 | 30.99 | 17.81 | 66.0 | 71.0 | 42.0 | 7.00 / 6.00 | — | 250.0 / 56,818 | 277.5 | 10.45 |
| ▶ Duplex — Double Strand (×2) | ||||||||||||
| C08B-2 | 12.700 | 8.51 | 7.75 | 4.45 | 31.2 | 32.2 | 11.8 | 1.60 | 13.92 | 32.0 / 7,273 | 38.7 | 1.45 |
| C10B-2 | 15.875 | 10.16 | 9.65 | 5.08 | 36.1 | 37.5 | 14.7 | 1.70 | 16.59 | 44.5 / 10,114 | 57.8 | 2.00 |
| C12B-2 | 19.050 | 12.07 | 11.68 | 5.72 | 42.0 | 44.7 | 16.0 | 1.85 | 19.46 | 57.8 / 13,136 | 66.1 | 2.62 |
| C16B-2 | 25.400 | 15.88 | 17.02 | 8.28 | 68.0 | 71.0 | 21.0 / 24.0 | 4.15 / 3.10 | 31.88 | 106.0 / 24,091 | 133.0 | 6.10 / 6.92 |
| C20B-2 | 31.750 | 19.05 | 19.56 | 10.19 | 77.8 | 81.5 | 26.4 | 4.50 / 3.50 | 36.45 | 170.0 / 38,636 | 211.2 | 8.23 |
| C24B-2 | 38.100 | 25.40 | 25.40 | 14.63 | 101.7 | 106.2 | 33.2 | 6.00 / 4.80 | 48.36 | 280.0 / 63,636 | 319.2 | 14.77 |
| C28B-2 | 44.450 | 27.94 | 30.99 | 15.90 | 124.6 | 129.1 | 36.7 | 7.50 / 6.00 | 59.56 | 360.0 / 81,818 | 406.8 | 19.82 |
| C32B-2 | 50.800 | 29.21 | 30.99 | 17.81 | 124.6 | 129.6 | 42.0 | 7.00 / 6.00 | 58.55 | 450.0 / 102,273 | 508.5 | 20.94 |
| ▶ Triplex — Triple Strand (×3) | ||||||||||||
| C08B-3 | 12.700 | 8.51 | 7.75 | 4.45 | 45.1 | 46.1 | 11.8 | 1.60 | 13.92 | 47.5 / 10,795 | 57.8 | 2.10 |
| C10B-3 | 15.875 | 10.16 | 9.65 | 5.08 | 52.7 | 54.1 | 14.7 | 1.70 | 16.59 | 66.7 / 15,159 | 84.5 | 2.87 |
| C12B-3 | 19.050 | 12.07 | 11.68 | 5.72 | 61.5 | 64.2 | 16.0 | 1.85 | 19.46 | 86.7 / 19,705 | 101.8 | 3.89 |
| C16B-3 | 25.400 | 15.88 | 17.02 | 8.28 | 99.8 | 102.9 | 21.0 / 24.0 | 4.15 / 3.10 | 31.88 | 160.0 / 36,364 | 203.7 | 9.12 / 10.34 |
| C20B-3 | 31.750 | 19.05 | 19.56 | 10.19 | 114.2 | 117.9 | 26.4 | 4.50 / 3.50 | 36.45 | 250.0 / 56,818 | 290.0 | 11.34 |
| C24B-3 | 38.100 | 25.40 | 25.40 | 14.63 | 150.1 | 154.6 | 33.2 | 6.00 / 4.80 | 48.36 | 425.0 / 96,591 | 493.0 | 22.10 |
| C28B-3 | 44.450 | 27.94 | 30.99 | 15.90 | 184.2 | 188.7 | 36.7 | 7.50 / 6.00 | 59.56 | 530.0 / 120,454 | 609.5 | 29.64 |
| C32B-3 | 50.800 | 29.21 | 30.99 | 17.81 | 183.2 | 188.2 | 42.0 | 7.00 / 6.00 | 58.55 | 670.0 / 152,273 | 770.5 | 31.27 |
Selection Guide
How to Choose the Right B-Series Chain
Uygulamalar
Where B-Series Straight-Plate Chains Are Used
C10B–C20B simplex / duplex chains in food-processing, beverage bottling and packaging lines — preferred for low chordal vibration and easy lubrication access.
C16B–C28B straight-plate chains outperform cranked-plate in vertical duty because the flat plate resists the bending moment imposed by bucket attachment hardware.
C08B–C16B in grain auger drives, straw walker drives on combine harvesters, seed-drill metering mechanisms and round-baler plunger drives.
C08B–C12B precision chains in CNC bar feeders, automatic tool changers and pallet transfer systems where positional accuracy is demanded cycle-on-cycle.
C24B–C32B triplex chains handle extreme tensile demands of crushing and screening plant drives; shock loading service factor of 2.0 applied as standard in this sector.
Kurulum ve Bakım
Keep Your Chain Running Longer
Hizalama
Shaft parallelism within 1 mm/m of centre distance. Sprocket faces co-planar within 0.5 mm. Misalignment is the single most common cause of premature B-series chain failure.
Initial Sag
Set sag to ~2% of centre distance for horizontal drives. Inclined or vertical drives: reduce to 1% or fit a spring-loaded tensioner to prevent strand jumping under load reversal.
Yağlama
ISO VG 100–150 mineral oil applied at the slack side where chain leaves the drive sprocket. Above 80 °C use synthetic or food-grade oil. In dusty environments, use penetrating oil — not heavy grease, which traps abrasive particles.
Wear Monitoring
Replace at 3% elongation (2% for precision drives). A C08B chain with 12.7 mm nominal pitch should be replaced once any 10-link section exceeds 130.8 mm. Never mix new links into a heavily worn zincir.
Get Pricing
Request a Quote — B Series Roller Chains
To receive an accurate quotation, please include the following in your enquiry. Our team at roller-chain-manufacturers.com responds within one business day. Standard in-stock lead time: 3–7 business days. Custom lengths and special treatments: 15–25 business days. Worldwide shipping available.
Required Info
Chain number (e.g. C16B-2)
Length in metres or link count
Quantity required
Optional Spec
Yüzey işlemi
Connecting link type
Destination country
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