PDF《GT2/B - Transport Belt Updates》

We reserve the right to make technical changes at any time without notice.

Page

1 Industrial Hydraulics Electric Drives and Controls Linear Motion and Assembly Technologies Service Automation Mobile Hydraulics Pneumatics BRL SIS (Sales Information Service) Date: Issued by: Bosch Rexroth Corporation ?

816 East Third St., Buchanan, MI

49107 ? 269-695-0151 07-23-2009 PB-M06-09 US Product Bulletin - Flexible Assembly Conveyors GT2/B - Transport Belt Updates Below is a summary of updates made to the GT2/B belt page in the TSplus catalog. - Belt thickness dimension has been corrected to reflect the actual thickness (1.7mm to 1.8mm) - The belt calculation table has been updated to include specific calculation formulas for AS2B & AS2B-H drive modules. Please replace page 3-8 in the TSplus catalog (version 4.0) with the follow- ing page. Belt Drive Components TSplus Assembly Conveyors

8981 500

269 05/09 Bosch Rexroth Corporation

8 3-

3 Transport Belt Model GT2/B

30 1.7 1.8 Conveying media Part Number Anti-static belt, specify length*

3842 992

811 Anti-static belt,

250 m roll

3842 539

479 Ordering Information for Antistatic Belt GT2/B * To order belt, in lengths up to

250 meters, please indicate the desired length in meters, in .001 meter increments. For example, to order 46.485 meters of belt, the part number would read as follows:

3842 992

811 Qty. = 46.485 meters To calculate the length of belt needed, please refer to the formulas below. Two belts are required for a conveyor section. How to calculate belt length The anti-static belt transports the work- piece pallets. In normal operation, the belts run continuously, carrying the pallet on their surface. Due to the low coef- - cient of friction between the belt and the pallet frames, pallets can be stopped on the conveyor while the belts continue to run. Belt is available in up to

250 meter rolls, or can be ordered precut to the desired length in

1 millimeter (0.001 meter) incre- ments. The maximum available uncut length is

250 meters. When installing or replacing belts, they must be tensioned and welded to create a continuous loop in each conveyor sec- tion. Tensioning ensures proper positive contact with the drive pulleys. This re- quires the use of a belt welding kit, which can be ordered on page 3-9. The belt welding kit includes the necessary tools for tensioning, grinding, and welding the belt ends. Material: Polyamide

12 with an electrically conduc- tive (antistatic) fabric covering. Shipping Information: This belt is shipped in rolls, pre-cut to speci- ed lengths . Application Note: For large systems with multiple drives Rexroth recommends ordering in less than

100 m segments. This will avoid having to splice a short drop off piece onto the next roll.

2 x conveyor section length (in mm) Drive Type AS2B/M, AS2B/S AS2B/M-H, AS2B/S-H AS2B/M, AS2B/S Belt needed for AS

2 and UM

2 (in mm) Factor for pre- tensioning Belt needed for overlap at weld (in mm) Belt length for conveyor sections <

4 meters in length (1 side) Belt length for conveyor sections >

4 meters in length (1 side) = [2 x LS +

1320 mm) x 0.980] +

60 mm = [2 x LS +

1320 mm) x 0.975] +

60 mm Belt length for conveyor sections >

1 meter in length (1 side) = [2 x LS +

1320 mm) x 0.965] +

60 mm Conveyor section length LS Drive Return Direction of Pallet Flow Minimum Length L S =

1000 mm between drive and return