Metric Roller Chain Size Charts - Complete Chain Dimensions
We've put together metric roller chain size charts to help you easily identify your chain size. The three charts below list complete chain dimensions for single, double & triple metric roller chains.
Quick Tip: The 3 most important dimensions to measure first is the Pitch (P), Roller Diameter (d1) & Inner Width (b1).
Anything labeled special order is available on a per quote basis for resellers & OEM's - Larger MOQ are required. Contact Us for a quote.
Single Metric Roller Chain
Dimensions: Inches (Millimeters)
| Chain Number | Pitch | Roller Diameter | Inner Width | Pin Diameter | Link Plate Height | Plate Thickness | Overall Width | Buy 10ft Rolls | Buy 50ft Reels |
|---|---|---|---|---|---|---|---|---|---|
| # | P | d1 | b1 | d2 | h2 | T | L | - | - |
| 04B | 0.236 (6mm) |
0.157 (4mm) |
0.110 (2.80mm) |
0.072 (1.85mm) |
0.196 (5mm) |
0.023 (0.60mm) |
0.268 (6.80mm) |
Buy Now | Special Order |
| 05B | 0.315 (8mm) |
0.196 (5mm) |
0.118 (3mm) |
0.090 (2.31mm) |
0.280 (7.10mm) |
0.030 (0.80mm) |
0.322 (8.20mm) |
Buy Now | Sepcial Order |
| 06B* | 3/8 (9.525mm) |
0.250 (6.35mm) |
0.225 (5.72mm) |
0.130 (3.28mm) |
0.335 (8.20mm) |
0.050 (1.30mm) |
0.517 (13.15mm) |
Buy Now | Buy Now |
| 08B | 1/2 (12.70mm) |
0.335 (8.51mm) |
0.305 (7.75mm) |
0.175 (4.45mm) |
0.472 (11.80mm) |
0.060 (1.60mm) |
0.657 (16.70mm) |
Buy Now | Buy Now |
| 10B | 5/8 (15.875mm) |
0.400 (10.16mm) |
0.380 (9.65mm) |
0.200 (5.08mm) |
0.579 (14.70mm) |
0.065 (1.70mm) |
0.767 (19.50mm) |
Buy Now | Buy Now |
| 12B | 3/4 (19.05mm) |
0.475 (12.07mm) |
0.460 (11.68mm) |
0.225 (5.72mm) |
0.637 (16mm) |
0.070 (1.85mm) |
0.885 (22.50mm) |
Buy Now | Buy Now |
| 16B | 1 (25.40mm) |
0.625 (15.88mm) |
0.670 (17.02mm) |
0.326 (8.28mm) |
0.827 (21mm) |
0.156 (3.96mm) |
1.421 (36.10mm) |
Buy Now | Special Order |
| 20B | 1-1/4 (31.75mm) |
0.750 (19.05mm) |
0.770 (19.56mm) |
0.401 (10.19mm) |
1.039 (26.40mm) |
0.177 (4.50mm) |
1.626 (41.30mm) |
Buy Now | - |
| 24B | 1-1/2 (38.10mm) |
1.000 (25.40mm) |
1.000 (25.40mm) |
0.576 (14.63mm) |
1.315 (33.20mm) |
0.238 (6.04mm) |
2.102 (53.40mm) |
Buy Now | - |
| 28B | 1-3/4 (44.45mm) |
1.100 (27.94mm) |
1.220 (30.99mm) |
0.625 (15.90mm) |
1.444 (36.70mm) |
0.275 (6.99mm) |
2.563 (65.10mm) |
Special Order | - |
| 32B | 2 (50.80mm) |
1.150 (29.21mm) |
1.220 (30.99mm) |
0.701 (17.81mm) |
1.661 (42.18mm) |
0.276 (7.01mm) |
2.598 (66mm) |
Buy Now | - |
*Uses straight side plates.
Special orders require larger MOQ's
Double Row Metric Roller Chain
Dimensions: Inches (Millimeters)
| Chain Number | Pitch | Roller Diameter | Inner Width | Pin Diameter | Link Plate Height | Plate Thickness | Overall Width | Buy 10ft Rolls | Buy 50ft Reels |
|---|---|---|---|---|---|---|---|---|---|
| # | P | d1 | b1 | d2 | h2 | T | L | - | - |
| 05B-2 | 0.315 (8mm) |
0.196 (5mm) |
0.118 (3mm) |
0.090 (2.31mm) |
0.280 (7.10mm) |
0.030 (0.80mm) |
0.547 (13.9mm) |
Special Order | Special Order |
| 06B-2* | 3/8 (9.525mm) |
0.250 (6.35mm) |
0.225 (5.72mm) |
0.130 (3.28mm) |
0.335 (8.20mm) |
0.050 (1.30mm) |
0.921 (23.4mm) |
Buy Now | Special Order |
| 08B-2 | 1/2 (12.70mm) |
0.335 (8.51mm) |
0.305 (7.75mm) |
0.175 (4.45mm) |
0.472 (11.80mm) |
0.060 (1.60mm) |
1.220 (31mm) |
Buy Now | Special Order |
| 10B-2 | 5/8 (15.875mm) |
0.400 (10.16mm) |
0.380 (9.65mm) |
0.200 (5.08mm) |
0.579 (14.70mm) |
0.065 (1.70mm) |
1.421 (36.10mm) |
Buy Now | Special Order |
| 12B-2 | 3/4 (19.05mm) |
0.475 (12.07mm) |
0.460 (11.68mm) |
0.225 (5.72mm) |
0.637 (16mm) |
0.070 (1.85mm) |
1.653 (42mm) |
Buy Now | Special Order |
| 16B-2 | 1 (25.40mm) |
0.625 (15.88mm) |
0.670 (17.02mm) |
0.326 (8.28mm) |
0.827 (21mm) |
0.156 (3.96mm) |
2.677 (68mm) |
Buy Now | Special Order |
| 20B-2 | 1-1/4 (31.75mm) |
0.750 (19.05mm) |
0.770 (19.56mm) |
0.401 (10.19mm) |
1.039 (26.40mm) |
0.177 (4.50mm) |
3.063 (77.8mm) |
Buy Now | - |
| 24B-2 | 1-1/2 (38.10mm) |
1.000 (25.40mm) |
1.000 (25.40mm) |
0.576 (14.63mm) |
1.315 (33.20mm) |
0.238 (6.04mm) |
4.003 (101.7mm) |
Buy Now | - |
| 28B-2 | 1-3/4 (44.45mm) |
1.100 (27.94mm) |
1.220 (30.99mm) |
0.625 (15.90mm) |
1.444 (36.70mm) |
0.275 (6.99mm) |
4.905 (124.6mm) |
Special Order | - |
| 32B-2 | 2 (50.80mm) |
1.150 (29.21mm) |
1.220 (30.99mm) |
0.701 (17.81mm) |
1.661 (42.18mm) |
0.276 (7.01mm) |
4.905 (124.6mm) |
Special Order | - |
*Uses straight side plates.
Special orders require larger MOQ's
Triple Row Metric Roller Chain
Dimensions: Inches (Millimeters)
| Chain Number | Pitch | Roller Diameter | Inner Width | Pin Diameter | Link Plate Height | Plate Thickness | Overall Width | Buy 10ft Rolls | Buy 50ft Reels |
|---|---|---|---|---|---|---|---|---|---|
| # | P | d1 | b1 | d2 | h2 | T | L | - | - |
| 05B-3 | 0.315 (8mm) |
0.196 (5mm) |
0.118 (3mm) |
0.090 (2.31mm) |
0.280 (7.10mm) |
0.030 (0.80mm) |
0.767 (19.5mm) |
Special Order | Special Order |
| 06B-3* | 3/8 (9.525mm) |
0.250 (6.35mm) |
0.225 (5.72mm) |
0.130 (3.28mm) |
0.335 (8.20mm) |
0.050 (1.30mm) |
1.318 (33.5mm) |
Buy Now | Special Order |
| 08B-3 | 1/2 (12.70mm) |
0.335 (8.51mm) |
0.305 (7.75mm) |
0.175 (4.45mm) |
0.472 (11.80mm) |
0.060 (1.60mm) |
1.775 (45.1mm) |
Buy Now | Special Order |
| 10B-3 | 5/8 (15.875mm) |
0.400 (10.16mm) |
0.380 (9.65mm) |
0.200 (5.08mm) |
0.579 (14.70mm) |
0.065 (1.70mm) |
2.074 (52.7mm) |
Buy Now | Special Order |
| 12B-3 | 3/4 (19.05mm) |
0.475 (12.07mm) |
0.460 (11.68mm) |
0.225 (5.72mm) |
0.637 (16mm) |
0.070 (1.85mm) |
2.421 (61.5mm) |
Buy Now | Special Order |
| 16B-3 | 1 (25.40mm) |
0.625 (15.88mm) |
0.670 (17.02mm) |
0.326 (8.28mm) |
0.827 (21mm) |
0.156 (3.96mm) |
3.929 (99.8mm) |
Special Order | Special Order |
| 20B-3 | 1-1/4 (31.75mm) |
0.750 (19.05mm) |
0.770 (19.56mm) |
0.401 (10.19mm) |
1.039 (26.40mm) |
0.177 (4.50mm) |
4.496 (114.2mm) |
Special Order | - |
| 24B-3 | 1-1/2 (38.10mm) |
1.000 (25.40mm) |
1.000 (25.40mm) |
0.576 (14.63mm) |
1.315 (33.20mm) |
0.238 (6.04mm) |
5.909 (150.1mm) |
Special Order | - |
| 28B-3 | 1-3/4 (44.45mm) |
1.100 (27.94mm) |
1.220 (30.99mm) |
0.625 (15.90mm) |
1.444 (36.70mm) |
0.275 (6.99mm) |
7.252 (184.2mm) |
Special Order | - |
| 32B-3 | 2 (50.80mm) |
1.150 (29.21mm) |
1.220 (30.99mm) |
0.701 (17.81mm) |
1.661 (42.18mm) |
0.276 (7.01mm) |
7.212 (183.2mm) |
Special Order | - |
*Uses straight side plates.