Chains

Sprockets
www.bergab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 223-3071
for Series 802, 805, SSC 802 Rubber Top
NS 821
KUS 821
N 800
L
82,5
L
Ln
80
83
– 0,05
– 0,1
9
– 0,05
– 0,1
+ 0,07
+ 0,02 d1
d1
da
M8
ø 60
da
d1
ø 60
da
Split Thermoplastic (NS) Sprockets
Rexnord
Order No.
Bore (mm)
NS 821 T21 R...
NS 821 T23 R...
NS 821 T25 R...
Bore (inch)
NS 821 T21 R...
NS 821 T23 R...
NS 821 T25 R...
Rexnord
Order No.
KUS 821 T21 R...*
KUS 821 T23 R...*
KUS 821 T25 R...*
KUS 821 T27 R...*
KUS 821 T29 R...*
21
23
25
21
23
25
Actual
21
23
25
27
29
No of
Teeth
Actual Effective
10,5
11,5
12,5
10,5
11,5
12,5
No of
Teeth
Effective
10,5
11,5
12,5
13,5
14,5
Thermoplastic (N) Sprockets
No of
Teeth
Pitch
Dia.
d
mm
129,26
141,22
153,21
129,26
141,22
153,21
Material: sprocket in reinforced polyamide (black).
Bolts in stainless steel AISI 304, nuts in
nickel plated brass.
Keyway: UNI 6604-69. See page 101.
Split Thermoplastic (KUS) Sprockets
Pitch
Dia.
d
mm
129,26
141,22
153,21
165,21
177,24
* = Available upon request and minimum
order quantity.
+ 0,3
• = Plain Bore. Without keyway. Tolerance d1 = 0
Material: sprocket in polyamide (black). Bolts
and nuts in stainless steel AISI 304.
Pitch
Dia.
d
mm
Outside
Dia.
da
mm
129,5
142
154,2
166
179
Outside
Dia.
da
mm
Finished Bore
with Keyway
d1
mm
20• 35 40 45
20• 35 40 45
20• 35 40 45
20• 35 40 45
20• 35 40 45
Finished Bore
with Keyway
d1
mm
1 3
2 4
Weight
kg
1,03
1,23
1,46
1,67
2,06
Rexnord
Order No. Actual Effective
Weight
kg
N 800 T25 R... 25 12,5 153,21 154,2
30 35 40
1,05
Material: polyamide (black).
Bolts and nuts in zinc plated steel.
Outside
Dia.
da
mm
129,5
142
154,2
129,5
142
154,2
Finished Bore
with Keyway
d1
35 40 45
35 40 45
35 40 45
1" 11/4"
1"
1" 11/4"
Max recommended tightening
torque: 1 kgm.
The sprocket consists of four
sections.
L
mm
31
31
33
31
31
33
Ln
mm
103
103
117
103
103
117
Keyway: UNI 6604-69. See page 101.
Max recommended tightening torque: 1 kgm.
Half-section fixing nuts (self-locking).
Keyway: UNI 6604-69. See page 101.
Weight
kg
0,38
0,38
0,52
0,38
0,38
0,52
89
121,5
KU 821
GG 821
80
45
79,4
B
da
B
dn
da
Thermoplastic (KU) Sprockets
Rexnord
Order No.
KU 821 T21 R19
KU 821 T23 R19*
KU 821 T25 R19
KU 821 T27 R19*
KU 821 T29 R19
Rexnord
Order No.
GG 821 T21 R19
GG 821 T23 R19*
GG 821 T25 R19*
GG 821 T27 R19*
GG 821 T29 R19*
Actual
21
23
25
27
29
Example of codenumber : KUS 821 T25 R 35 (including bore)
www.bergab.ru Берг АБ bergab@ya.ru Тел. 66 (495)-228-06-21, факс (495) 223-3071
No. of
Teeth
Actual
21
23
25
27
29
Effective
10,5
11,5
12,5
13,5
14,5
No. of
Teeth
Effective
10,5
11,5
12,5
13,5
14,5
Pitch
Dia.
d
mm
129,26
141,22
153,21
165,21
177,24
Pitch
Dia.
d
mm
129,26
141,22
153,21
165,21
177,24
Outside
Dia.
da
mm
129
142
154
166
179
* = Available upon request and minimum order quantity.
Material: polyamide (black)
Semi-Steel (GG) Sprockets
Outside
Dia.
da
mm
129
142
154
166
179
* = Available upon request and minimum order quantity.
Plain
Bore
B
mm
19
19
19
19
19
Plain
Bore
B
mm
19
19
19
19
19
dn
mm
64
64
74
74
64
Max.
Bore
mm
45
45
45
45
45
Max.
Bore
mm
45
45
45
45
45
Weight
kg
0,77
0,88
1,01
1,19
1,47
Weight
kg
3,0
3,2
3,3
3,4
3,6