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British Standard Duplex Sprockets in Carbon Steel Pilot Bore
For British Standard Roller Chains to BS228-DIN8187-ISO606R
Copyright remains the property of Lakehurst Limited






































Pitch Size 

Iso. Ref.

8mm

05B-2

3/8"

06B-2

1/2"

08B-2

5/8"

10B-2

3/4"

12B-2

1"

16B-2

1-1/4"

20B-2

1-1/2"

24B-2

1-3/4"

28B-2

2"

32B-2

Carbon Steel

Tooth Size

Range

8 to 40

inc.

8 to 57

inc.

60-64-65

69-70-72

76-80-85

90-95-100

110-114

8 to 60

inc.

62-64-65

68-70-72

75-76-80

85-95-114

8 to 40

inc.

42 to 48

inc.

50-51-52

62-54-55

56-57-58

60-65-72

76-95

8 to 48

inc.

50-51-52

56-57-60

70-72-76

80-95

8 to 40

inc.

42-44-45

46-48-50

51-57-60

70-76-80

85-90-95

114

8 to 32

inc.

34-35-36

38-40-45

46-50-57

60-76

8 to 38

inc.

40-45-46

50-57-76

8 to 26

inc.

28-30-35

38-40-45

50-57-76

8 to 26

inc.

28-30-35

38-40-45

50-57-76

Cast Iron

Tooth Size

Range
 
38-45-57

76-95-114

150

38-45-57

76-95-114

150

38-45-57

76-95-114

38-45-57

76-95-114
 

38-45-57


76-95-114

38-45-57

76-95-114
 

38-45-57

76-95-114
 

38-45-57

76-95-114
 

38-45-57

76-95-114
 
This Standard Range of Duplex Roller Chain Sprockets are to suit British Standard Roller Chain that conform to BS 228-Din 8187 and ISO 606R Standards. They are manufactured to the Metric European Standard having the Squared Tooth Profile and a Boss one side.
As this Standard has now been adopted throughout Europe they should be indentical and interchangable with most if not all of the other manufacutured Brands offered within the Euorpean Union.
Information Bar -
-> Weld on Boss Type
Weld in through Boss Type
Double Central Boss Type
Double Offset Boss Type
Idler Sprockets (with Bearing)
Larger Boss Diameter Type
Longer boss length Type
-> B.S. Duplex Plate Wheels Pilot Bore
-> B.S. Duplex Taper Bored/Bushed Sprockets
Steel Sprockets are produced in C45 E Uni En 10083-1 and are suitable for Flame & Induction Hardening?
Cast Iron Chainwheels : Grade GJL200 as standard, with increased Boss Diameter and Heavy Duty GG25 available upon request?
Then please check the range of tooth sizes in the Duplex Plate wheels range as these can be supplied with a Weld on Boss if required?
To compliment the Stock range of Products the company offers a comprehensive reworking service to modify any stock sprocket to your individual requirements?
In Addition to the machining Services it offers it can also provide the following Heat Treatments:
FLAME Harden Teeth
INDUCTION Harden Teeth
CASE Hardening
The Company also provides a full range of Add on Plating Finishes:
ZINC (Clear or Yellow)
NICKEL
CHEMICAL BLACK
PHOSIPHATE.
-> Beside the Reworking Service the company offers a Full Manufacturing
Service that caters for:-
1- Any requirement outside the stock range!
2- Customers own drawing requirement.
3- When a stock sprocket is not suitable?
See our manufacturing Capacity
-> Introduction to Roller Chain Sprockets including how to Identify and how to improve the life of your drive sprockets by up to 50%
This New feature is there to provide useful links to other pages, further information and Tips you may find of interest?
Heavy Duty castings for applications where High Impact loads are common or when increase strength is required? then please ask our Sales Department for details of our Heavy Duty Casting range in GG25 or our Casting Service when you require an Oversize Boss or you have a Special Pattern requirement such as a Shear Pin or Split Designs.
As a rough gauge we would recomend that any boss diameter should be at least 1.5 times the shaft diameter it is required to fit onto?
Need a Heavy Duty Castings:
Looking for a size that is not listed here?
Links to Related Products:
Tips:
Manufacturing:
Plating Service:
Heat Treatments:
Reworking Service:
Alternative Design Types:
Alternative Shaft Fixing Option:
As an alternative to either Boring & Keywaying a pilot bore pulley or using a Taper bored pulley and Bush! Why not take a look at the range of Locking Bushes we now offer, as they eliminate the need for fixing via a Keyway-Key thereby providing the added benefit of a uniform distribution of the drive load over the entire diameter of the bush?(Use this link to go locking bush page)
-> Shaft Locking Bushes (clamping)