TRANSDEV CATALOGUE 2018 MARCH.pdf

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GEARS & RACKS
Helical Racks
Metric Hardened & Ground Helical Racks, Continuous Mounting
1.5 - 6 MOD
690
Helical Rack
T
Detail
Ra 0.8
Other Belts
V
d 1
A
hp
ØD
Ød
M
L
C x 45°
P
S
B ± 0.02
N
R
19° 31’ 42”
Continuous mounting
Part No. Module L M No. teeth B A
Height to pitch
hp
c N R V d D T P S d1 (kg)
SRH15/19/1C 1.5 1000 6.7 200 19 19 17.50 0/-027 2 62.5 125 8 7 11 7 31.7 936.6 5.7 2.6
SRH20/24/1C 2 1000 8.5 150 24 24 22.00 0/-027 2 62.5 125 8 7 11 7 31.7 936.6 5.7 4.1
SRH25/24/1C 2.5 1000 8.5 120 24 24 21.50 0/-027 2 62.5 125 9 7 11 7 31.7 936.6 5.7 4.1
SRH30/29/1C 3 1000 10.3 100 29 29 26.00 0/-034 2 62.5 125 9 10 15 9 35 930 7.7 5.9
SRH40/39/1C 4 1000 13.8 75 39 39 35.00 0/-034 3 62.5 125 12 10 15 9 33.3 933.4 7.7 10.7
SRH50/49/1C 5 1000 17.4 60 49 39 34.00 0/-034 3 62.5 125 12 14 20 13 37.5 925 11.7 13.1
SRH60/59/1C 6 1000 20.9 50 59 49 43.00 0/-041 3 62.5 125 16 18 26 17 37.5 925 15.7 19.9
Helical Racks-with a helix angle of 19° 31' 42" Right hand
Material - Steel C45
20° pressure angle
Teeth - Hardened and ground HRC 50-55 all faces ground
Quality Grade-6h 23 DIN3962/63/67
•
Adjacent pitch error
0.006mm (3 Mod & under)
0.008mm (over 3 Mod)
Cumulative = Pitch error / 0.03mm (1000mm)
Please note: All dimensions subject to change. If a dimension is critical to your application please contact our Sales Department for confirmation.
For special or reworked racks please contact our Manufacturing Department for a quotation.
T +44 (0)1202 675 555 F +44 (0)1202 677 466 E sales@transdev.co.uk transdev.co.uk 689