12B-1
British Standard Roller Chain
12B-1
British Standard Roller Chain
3/4 inch pitch British standard roller chain, widely used in UK manufacturing for robust power transmission.
Price Match Promise
Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
3/4 inch pitch British standard roller chain, widely used in UK manufacturing for robust power transmission.
Price Match Promise
Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Technical Dimensions & Load Ratings
Confirm these values match your shaft, housing and application requirements before ordering.
Dimensions
| Bore Diameter (d) | 19.05mm |
| Outer Diameter (D) | 12.07mm |
| Width (B) | 11.68mm |
| Weight | 1.2kg |
Load & Speed Ratings
| Dynamic Load Rating (Cr) | 28.9kN |
Product Details
| Part Number | 12B-1 |
| Brand | Tsubaki |
| Bearing Type | British Standard Roller Chain |
| Material | Carbon Steel |
| Stock Status | Extended Stock |
Technical Datasheet
Download full specifications for 12B-1 — dimensions, load ratings, and material data.
Tsubaki Technical Resources
Engineering support
Our experienced MRO products specialists are on hand to offer practical solutions to your problems and can assist with an on-site visit.
Call us01709 878282
Frequently Asked Questions
What is a 12B-1 bearing?
The 12B-1 is a Tsubaki British Standard Roller Chain with a 19.05mm bore, 12.07mm outer diameter and 11.68mm width. It is Extended Stock at Buy Bearings.
What are the 12B-1 dimensions?
The 12B-1 measures 19.05mm bore (inner diameter) × 12.07mm outer diameter × 11.68mm width.
Is the 12B-1 in stock?
The 12B-1 is Extended Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Related & Compatible Bearings
Same british standard roller chain, closest dimensions first — useful if you need a slightly different size or this part is unavailable.
