TRN7C miniature guide rail is 7mm wide, standard length block.
TRN7H miniature guide rail is 7mm wide, extended block.
The TRN7C/TRN7H miniature linear guide has corrosion resistance, compact structure, high rigidity,high load capacity and interchangeable with IKO and HIWIN products.
The TRN7C/TRN7H mini linear guideways are mainly used in medical equipment, electronic equipment and linear motors.
Model | H | H1 | N | W1 | W2 | W3 | L1 | L2 | L3 | L4 | Mxd | H3 | Weight |
TRN7C | 8 | 1.5 | 5 | 17 | 12 | 2.5 | 23.5 | 8 | 14.3 | - | M2x2.5 | 1.5 | 10g |
TRN7H | 8 | 1.5 | 5 | 17 | 12 | 2.5 | 31 | 12 | 21.6 | - | M2x2.5 | 1.5 | 14g |
TRN9C | 10 | 2 | 5.5 | 20 | 15 | 2.5 | 30 | 10 | 20.8 | - | M3x3 | 2.2 | 19g |
TRN9H | 10 | 2 | 5.5 | 20 | 15 | 2.5 | 40.5 | 15 | 30.9 | - | M3x3 | 2.2 | 28g |
TRN12C | 13 | 3 | 7.5 | 27 | 20 | 3.5 | 34 | 15 | 21.6 | - | M3x3.5 | 2.7 | 35g |
TRN12H | 13 | 3 | 7.5 | 27 | 20 | 3.5 | 44 | 20 | 32 | - | M3x3.5 | 2.7 | 52g |
TRN15C | 16 | 4 | 8.5 | 32 | 25 | 3.5 | 42 | 20 | 27.8 | - | M3x4 | 3.1 | 64g |
TRN15H | 16 | 4 | 8.5 | 32 | 25 | 3.5 | 57 | 25 | 42.7 | 62 | M3x4 | 3.1 | 95g |
Data unit is mm
A bushing, also known as a bush, is an independent plain bearing that is inserted into a housing to provide a bearing surface for rotary applications; this is the most common form of a plain bearing.[8] Common designs include solid (sleeve and flanged), split, and clenched bushings. A sleeve, split, or clenched bushing is only a "sleeve" of material with an inner diameter (ID), outer diameter (OD), and length. The difference between the three types is that a solid sleeved bushing is solid all the way around, a split bushing has a cut along its length, and a clenched bearing is similar to a split bushing but with a clench (or clinch) across the cut connecting the parts. A flanged bushing is a sleeve bushing with a flange at one end extending radially outward from the OD. The flange is used to positively locate the bushing when it is installed or to provide a thrust bearing surface.[9]
Sleeve bearings of inch dimensions are almost exclusively dimensioned using the SAE numbering system. The numbering system uses the format -XXYY-ZZ, where XX is the ID in sixteenths of an inch, YY is the OD in sixteenths of an inch, and ZZ is the length in eighths of an inch.[10] Metric sizes also exist.
A linear bushing is not usually pressed into a housing, but rather secured with a radial feature. Two such examples include two retaining rings, or a ring that is molded onto the OD of the bushing that matches with a groove in the housing. This is usually a more durable way to retain the bushing, because the forces acting on the bushing could press it out.
The thrust form of a bushing is conventionally called a thrust washer.
