2250 SERIES
Poly-V Conveyor Roller
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The 2250 is a poly-V driven roller with 9-V grooves and is suitable for many belt applications. The poly-V pulley is located at the end of the roller which separates the drive area and conveying area making conveying smooth, high speed and low noise. Each roller comes equipped with a polymer housed precision bearing, end cap, spring loaded shafts and tube.
- The poly-V pulley is located at the end of the roller which separates the drive area and the conveying area making the conveying smooth, high speed and low noise.
- For 1 3/8 and 1.9 rollers, the bearing end cap consists of a precision ball bearing, a polymer housing and end cap seal. Combined they provide a smooth and quiet running roller. Poly-V pulleys for 2.5" diameter rollers are steel and welded to the tube.
- ISO9982 PJ series poly-V. Total of 9 grooves at 2.34mm pitch for 1 3/8 and 1.9 rollers. Total of 16 grooves are provided for 2.5" rollers (2 sections of 8 each).
- Various PJ belt lengths available to suit different roller centers.
- Suitable for the high speed applications. Maximum speed varies with roller length and diameter. Maximum speed up to 120m/min.
- Temperature range: -5°C – +40°C.
Specifications:
Bearing Unit
1.9 & 1 3/8
2.5
Bearing housing
Polyamide, black
Steel
End cap
Polypropylene, daRoller green
Steel
Drive Element
Poly-V wheel
Polyamide, black
Steel
Poly-vee belts are available
COVERS
Shaft
Polyurethane
85A 1/8"
Soft PVC
63A
Tube Diameter
Material
Wall
Thickness
5/16"
Hex
7/16"
Hex
11/16"
Hex
Orange
PVC Gray
1 3/8"
Galvanized
0.048"
★
★
1.9"
Galvanized
0.06"
★
★
★
Stainless
0.060"
★
★
★
1.96"
Gray PVC
0.098"
★
★
2.5"
Galvanized
0.12"
★
★
About Duty
- Duty is the maximum conveying capacity of driven roller (it’s not roller’s maximum load capacity). For more information about the load capacity, refer to the load capacity of 1200 series 1.9" diameter roller on page 20.
- In driven conveying, duty plays a decisive role.
- The duty capacity of the roller is based on the drive method and the type of Poly-V belt. The duty rating is high when fewer rollers are driven or selecting the 3 or 4 groove Poly-V belt.
- The duty capacity for each unit can be as high as 220lb (100kg) when the 3 groove poly-vee belt is used.
Roller Center Pitch
Poly-V belt selection according to the roller pitch, please refer to the following chart:
Type of poly-V belt for 1.9" diameter
Roller Pitch (mm)
2 grooves
3 grooves
60~63
2PJ256
3PJ256
73~75
2PJ286
3PJ286
76~78
2PJ290
3PJ290
87~91
2PJ314
3PJ314
97~101
2PJ336
3PJ336
103~107
2PJ346
3PJ346
119~121
2PJ376
3PJ376
129~134
2PJ416
3PJ416
129~134
2PJ435
3PJ435
157~161
2PJ456
3PJ456
Roller Pitch (mm)
FOR 43 MM PULLEYS
MIN/MAX CENTER DISTANCE
FOR 60 MM PULLEYS
# of Ribs + Belt
Min (mm)
Max (mm)
Min (mm)
Max (mm)
Number = Belt Part Number
N/A
N/A
N/A
N/A
PJ206
N/A
N/A
N/A
N/A
PJ214
48.2
51.7
N/A
N/A
PJ236
54.4
58.1
N/A
N/A
PJ246
60.0
64.9
N/A
N/A
PJ256
63.2
67.2
N/A
N/A
PJ263
64.2
68.2
N/A
N/A
PJ265
64.7
68.8
N/A
N/A
PJ270
71.8
76.1
N/A
N/A
PJ282
72.6
76.9
N/A
N/A
PJ286
75.7
80.1
N/A
N/A
PJ290
77.5
81.9
N/A
N/A
PJ292
81.7
86.3
N/A
N/A
PJ302
88.4
93.2
N/A
N/A
PJ314
92.4
97.3
65.7
70.6
PJ316
98.4
103.5
71.7
76.8
PJ336
104.6
109.9
77.9
83.2
PJ346
105.9
111.2
81.7
87.1
PJ348
105.5
110.0
78.8
83.0
PJ354
108.4
113.8
88.5
94.2
PJ372
115.3
120.9
91.4
97.1
PJ376
124.8
130.7
98.1
104.0
PJ388
131.3
137.4
104.6
110.7
PJ401*
134.5
139.5
107.7
113.0
PJ417
144.1
150.6
117.4
123.9
PJ435
152.1
158.9
125.4
132.2
PJ442
157.3
164.2
130.6
137.5
PJ456
172.4
179.7
145.7
153.0
PJ486
185.2
192.9
158.5
166.2
PJ515
198.2
206.4
171.5
179.7
PJ536
209.9
218.5
183.2
191.7
PJ570
224.0
233.8
197.3
207.0
PJ583
250.0
262.8
223.3
236.1
PJ636
304.0
315.4
277.3
288.7
PJ746
409.7
424.4
383.0
397.7
PJ955
522.3
540.4
495.6
513.7
PJ1215