Introduction

WEARCO is a supplier for 4B Forged Chain.
Founded in the UK in 1971, 4B Elevator Components Ltd. has been an industry leader in developing high quality, innovative, and dependable material handling components for the agricultural and industrial sectors.
Overview
4B drop forged chain is made of special heat treated alloy steel case hardened to Rockwell C57 with a ductile core hardness of Rockwell C40. Heat treating is a complex process that is done to provide the optimum chain link with a more fracture resilient ductile core for shock resistance and an extremely hard exterior surface for superior wear resistance. 4B drop forged chain is backed by an international network of companies with over 120 years of experience, and a global team of engineers that can provide you with practical solutions for all your material handling applications.
- Sizes 102,142
- Free Application Engineering
- Extreme Abrasive Resistance
- High Temperature Tolerance
- Suitable for Ash, Cement, Lime, Coke, Coal, Grain, etc.
Forged Chain Link and Pin General Design
- Pins and accessories available in hardened stainless steel.
- Flights are manufactured and attached according to customer’s specifications.
- Other Link & Pin designs available to order.

Forged Chain and Flights
- Link Specification
- A – Alloy steel – Case hardened, surface hardness RC 57min
- AD – Alloy steel – Through hardened (for higher U.T.S.)
- C – Carbon steel – Case hardened, surface hardness RC 57
- Pin Specification
- Alloy steel – Case hardened, surface hardness RC 57 min. Effective case depth 0.6mm

Specification | ||||||||||||
Chain Ref | P
mm |
H
mm |
W1
mm |
W2
mm |
T
mm |
L
mm |
D
mm |
kg |
Average Breaking Load |
Effective Case Depth | ||
Kn | Kg | lbs | mm | |||||||||
GB0102NA | 102 | 36 | 28 | 12 | 6.5 | 34 | 14 | .35 | 150 | 15300 | 33700 | 0.4 |
GB0142NC | 142 | 50 | 42 | 20 | 11 | 46 | 25 | 1.26 | 200 | 20400 | 45000 | 0.45 |
GB0142NA | 142 | 50 | 42 | 19 | 11 | 47 | 25 | 1.26 | 350 | 35700 | 78700 | 0.6 |
GB0142HA | 142 | 50 | 62 | 29 | 15.5 | 54 | 25 | 2 | 525 | 53500 | 118000 | 0.6 |
GB0142HAD | 142 | 50 | 62 | 29 | 15.5 | 54 | 25 | 2 | 600 | 61200 | 134900 | – |
GB216NA | 216 | 72 | 58 | 25 | 18 | 60 | 35 | 4.6 | 600 | 61200 | 134900 | 0.5 |
GB260NA | 260 | 75 | 70 | 31 | 20 | 79 | 32 | 5.65 | 700 | 71400 | 157500 | 0.5 |
Chain Link | 102 N-A
Drop Forged Chain |
125 N-A
Drop Forged Chain |
142 N-A
Drop Forged Chain |
142 H-A
Drop Forged Chain |
150 N-A
Drop Forged Chain |
160 N-A
Drop Forged Chain |
216 N-A
Drop Forged Chain |
260 N-A
Drop Forged Chain |
Minimum Breaking Load | 150kn
33000lb |
175kn
39375lb |
300kn
67500lb |
450kn
101000lb |
250kn
56250lb |
260kn
58500lb |
600kn
135000lb |
700kn
158000lb |
Case (MIN) Hardness | Rockwell
C57 |
Rockwell
C57 |
Rockwell
C57 |
Rockwell
C57 |
Rockwell
C57 |
Rockwell
C57 |
Rockwell
C57 |
Rockwell
C57 |
Case Depth | 0.5mm | 0.6mm | 0.7mm | 0.7mm | 0.7mm | 0.8mm | 1.0mm | 1.0mm |
Case Hardness | Rockwell
C40 |
Rockwell
C40 |
Rockwell
C40 |
Rockwell
C40 |
Rockwell
C40 |
Rockwell
C40 |
Rockwell
C40 |
Rockwell
C40 |
Weight (per link) | 0.38kg | 0.7kg | 1.08kg | 1.76kg | 1.2kg | 1.3kg | 3.66kg | 5.38kg |
Bolt ‘N’ Go Compatible | Yes | Yes | Yes | Yes | Yes | Yes | No | No |
Dimensions | ||||||||
P (mm) | 102 | 125 | 142 | 142 | 150 | 160 | 216 | 260 |
H (mm) | 36 | 35 | 50 | 50 | 49 | 44.5 | 75 | 75 |
W (mm) | 28 | 36 | 42 | 62 | 36 | 42 | 60 | 71 |
T (mm) | 7.62 | 10 | 11 | 16.5 | 13 | 13 | 19 | 22 |
Typical Flight Arrangements

Items Available
Forged Chain

Forged Chain

Link and Pin General Design
Bolt ‘N’ Go

Forged Chain

Round Link Chain
Sprockets and Trailers

Sprockets

Trailers
Accessories

Nylon Flights for Scraper Chains

Plastic Flight Sleeves

Round Link Chain

Miscellaneous Conveyor Chain