Cylinder tubes / piston rods - Brütsch/Rüegger Metals AG

40.00 mm

9.864 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	39.950	AD max	39.975

available

assemble

Hard chromium pl. steel bars, 42CrMo(S)4+QT

40.00 mm

9.864 Kg / m

42CrMo(S)4

1.7225/1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	39.950	AD max	39.975

available

assemble

Nickel and chromium plated steel bars

40.00 mm

9.864 Kg / m

20MnV6

Specifications

Tolerances

Tolerances (mm)

AD min	39.950	AD max	39.975

available

assemble

Hard chromium plated piston rods, induction hardened, 42CrMo

40.00 mm

9.864 Kg / m

42CrMo(S)4

1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	39.950	AD max	39.975

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

40.00 mm

9.864 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	39.950	AD max	39.975

available

assemble

Hard chromium plated steel bars,20MnV6

40.00 mm

9.864 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	39.950	AD max	39.975

available

assemble

grinded shafts Cf53, h6

40.00 mm

9.800 Kg / m

Cf53

1.1213

Specifications

Tolerances

Tolerances (mm)

AD min	39.984	AD max	40.000

available

assemble

Piston rods, 1.4301, hard chromed

40.00 mm

9.860 Kg / m

X5CrNi18-10 / X2CrNi18-9

1.4301 / 1.4307

Specifications

Tolerances

Tolerances (mm)

AD min	39.950	AD max	39.975

available

assemble

Cold drawn cylinder tubes, honed/roller

42.00 x 5.00 mm (ID: 32 mm)

4.562 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	41.800	AD max	42.200
ID min	32.000	ID max	32.084

available

assemble

Cold drawn cylinder tubes, honed/roller

42.00 x 6.00 mm (ID: 30 mm)

5.330 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	41.800	AD max	42.200
ID min	30.000	ID max	30.052

available

assemble

Hard chromium plated steel bars,20MnV6

42.00 mm

10.900 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	41.950	AD max	41.975

available

assemble

Cylinder tubes, welded, PZ, E235

44.00 x 2.00 mm (ID: 40 mm)

2.072 Kg / m

E235

1.0308

Specifications

Tolerances

Tolerances (mm)

AD min	43.800	AD max	44.200
ID min	40.000	ID max	40.100

available

assemble

Hard chromium plated steel bars,20MnV6

44.45 mm (1 3/4")

12.181 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	44.400	AD max	44.425

available

assemble

Cylinder tubes, welded, PZ, E355

45.00 x 2.50 mm (ID: 40 mm)

2.620 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	44.800	AD max	45.200
ID min	40.000	ID max	40.100

available

assemble

Aluminium cylinder tubes, AW-6060

45.00 x 2.50 mm (ID: 40 mm)

0.900 Kg / m

AlMgSi0.5/AW-6060

3.3206

Specifications

Tolerances

Tolerances (mm)

AD min	44.800	AD max	45.200
ID min	40.000	ID max	40.250

available

assemble

Cold drawn cylinder tubes, honed/roller

45.00 x 5.00 mm (ID: 35 mm)

4.932 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	44.800	AD max	45.200
ID min	35.000	ID max	35.084

available

assemble

Outside chromium plated steel tubes

45.00 x 5.00 mm

4.932 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	44.950	AD max	44.975

available

assemble

Outside chromium plated steel tubes

45.00 x 7.50 mm

6.936 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	44.950	AD max	44.975

available

assemble

Hard chromium plated steel bars, CK 45

45.00 mm

12.485 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	44.950	AD max	44.975

available

assemble

Hard chromium pl. steel bars, 42CrMo(S)4+QT

45.00 mm

12.485 Kg / m

42CrMo(S)4

1.7225/1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	44.950	AD max	44.975

available

assemble

Hard chromium plated piston rods, induction hardened, 42CrMo

45.00 mm

12.485 Kg / m

42CrMo(S)4

1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	44.950	AD max	44.975

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

45.00 mm

12.485 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	44.950	AD max	44.975

available

assemble

Hard chromium plated steel bars,20MnV6

45.00 mm

12.485 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	44.950	AD max	44.975

available

assemble

Cold drawn cylinder tubes, honed/roller

50.00 x 5.00 mm (ID: 40 mm)

5.549 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	49.800	AD max	50.200
ID min	40.000	ID max	40.062

available

assemble

Cylinder tubes, welded, PZ, E355

50.00 x 5.00 mm (ID: 40 mm)

5.549 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	49.800	AD max	50.200
ID min	40.000	ID max	40.100

available

assemble

Outside chromium plated steel tubes

50.00 x 5.00 mm

5.549 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Outside chromium plated steel tubes

50.00 x 7.50 mm

7.861 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Outside chromium plated steel tubes

50.00 x 10.00 mm

9.865 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Hard chromium plated steel bars, CK 45

50.00 mm

15.413 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Hard chromium pl. steel bars, 42CrMo(S)4+QT

50.00 mm

15.413 Kg / m

42CrMo(S)4

1.7225/1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Hard chromium plated piston rods, induction hardened, 42CrMo

50.00 mm

15.413 Kg / m

42CrMo(S)4

1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

50.00 mm

15.413 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Hard chromium plated steel bars,20MnV6

50.00 mm

15.413 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

grinded shafts Cf53, h6

50.00 mm

15.320 Kg / m

Cf53

1.1213

Specifications

Tolerances

Tolerances (mm)

AD min	49.984	AD max	50.000

available

assemble

Piston rods, 1.4301, hard chromed

50.00 mm

15.413 Kg / m

X5CrNi18-10 / X2CrNi18-9

1.4301 / 1.4307

Specifications

Tolerances

Tolerances (mm)

AD min	49.950	AD max	49.975

available

assemble

Hard chromium plated steel bars,20MnV6

50.80 mm

15.870 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	50.740	AD max	50.770

available

assemble

Cold drawn cylinder tubes, honed/roller

52.00 x 6.00 mm (ID: 40 mm)

6.807 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	51.750	AD max	52.250
ID min	40.000	ID max	40.062

available

assemble

Cylinder tubes, welded, PZ, E355

55.00 x 2.50 mm (ID: 50 mm)

3.237 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	54.750	AD max	55.250
ID min	50.000	ID max	50.100

available

assemble

Aluminium cylinder tubes, AW-6060

55.00 x 2.50 mm (ID: 50 mm)

1.110 Kg / m

AlMgSi0.5/AW-6060

3.3206

Specifications

Tolerances

Tolerances (mm)

AD min	54.750	AD max	55.250
ID min	50.000	ID max	50.250

available

assemble

Cold drawn cylinder tubes, honed/roller

55.00 x 5.00 mm (ID: 45 mm)

6.165 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	54.750	AD max	55.250
ID min	45.000	ID max	45.062

available

assemble

Outside chromium plated steel tubes

55.00 x 5.00 mm

6.165 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	54.940	AD max	54.970

available

assemble

Cold drawn cylinder tubes, honed/roller

55.00 x 7.50 mm (ID: 40 mm)

8.786 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	54.750	AD max	55.250
ID min	40.000	ID max	40.062

available

assemble

Outside chromium plated steel tubes

55.00 x 7.50 mm

11.100 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	54.940	AD max	54.970

available

assemble

Outside chromium plated steel tubes

55.00 x 10.00 mm

11.100 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	54.940	AD max	54.970

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

55.00 mm

18.650 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	54.940	AD max	54.970

available

assemble

Hard chromium plated steel bars,20MnV6

55.00 mm

18.650 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	54.940	AD max	54.970

available

assemble

Hard chromium plated steel bars, CK 45

56.00 mm

19.334 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	55.940	AD max	55.970

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

56.00 mm

19.334 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	55.940	AD max	55.970

available

assemble

Hard chromium plated steel bars,20MnV6

56.00 mm

19.334 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	55.940	AD max	55.970

available

assemble

Hard chromium plated steel bars,20MnV6

57.15 mm (2 1/4")

20.130 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	57.090	AD max	57.120

available

assemble

Cold drawn cylinder tubes, honed/roller

60.00 x 5.00 mm (ID: 50 mm)

6.782 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	59.750	AD max	60.250
ID min	50.000	ID max	50.062

available

assemble

Cylinder tubes, welded, PZ, E355

60.00 x 5.00 mm (ID: 50 mm)

6.782 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	59.750	AD max	60.250
ID min	50.000	ID max	50.100

available

assemble

Outside chromium plated steel tubes

60.00 x 5.00 mm

6.782 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

Cold drawn cylinder tubes, honed/roller

60.00 x 7.50 mm (ID: 45 mm)

9.710 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	59.750	AD max	60.250
ID min	45.000	ID max	45.062

available

assemble

Outside chromium plated steel tubes

60.00 x 7.50 mm

9.710 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

Outside chromium plated steel tubes

60.00 x 10.00 mm

12.330 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

Hard chromium plated steel bars, CK 45

60.00 mm

22.195 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

Hard chromium pl. steel bars, 42CrMo(S)4+QT

60.00 mm

22.195 Kg / m

42CrMo(S)4

1.7225/1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

Hard chromium plated piston rods, induction hardened, 42CrMo

60.00 mm

22.195 Kg / m

42CrMo(S)4

1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

60.00 mm

22.195 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

Hard chromium plated steel bars,20MnV6

60.00 mm

22.195 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	59.940	AD max	59.970

available

assemble

grinded shafts Cf53, h6

60.00 mm

22.050 Kg / m

Cf53

1.1213

Specifications

Tolerances

Tolerances (mm)

AD min	59.981	AD max	60.000

available

assemble

Cold drawn cylinder tubes, honed/roller

62.00 x 6.00 mm (ID: 50 mm)

8.286 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	61.750	AD max	62.250
ID min	50.000	ID max	50.062

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

63.00 mm

24.500 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	62.940	AD max	62.970

available

assemble

Hard chromium plated steel bars,20MnV6

63.00 mm

24.500 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	62.940	AD max	62.970

available

assemble

Hard chromium plated steel bars,20MnV6

63.50 mm (2 1/2")

24.860 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	63.440	AD max	63.470

available

assemble

Cold drawn cylinder tubes, honed/roller

65.00 x 5.00 mm (ID: 55 mm)

7.398 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	64.700	AD max	65.300
ID min	55.000	ID max	55.062

available

assemble

Cold drawn cylinder tubes, honed/roller

65.00 x 7.50 mm (ID: 50 mm)

10.635 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	64.700	AD max	65.300
ID min	50.000	ID max	50.062

available

assemble

Outside chromium plated steel tubes

65.00 x 7.50 mm

10.635 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	64.940	AD max	64.970

available

assemble

Outside chromium plated steel tubes

65.00 x 10.00 mm

13.560 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	64.940	AD max	64.970

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

65.00 mm

26.048 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	64.940	AD max	64.970

available

assemble

Hard chromium plated steel bars,20MnV6

65.00 mm

26.048 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	64.940	AD max	64.970

available

assemble

Cylinder tubes, welded, PZ, E235

68.00 x 2.50 mm (ID: 63 mm)

4.038 Kg / m

E235

1.0308

Specifications

Tolerances

Tolerances (mm)

AD min	67.700	AD max	68.300
ID min	63.000	ID max	63.100

available

assemble

Aluminium cylinder tubes, AW-6060

68.00 x 2.50 mm (ID: 63 mm)

1.388 Kg / m

AlMgSi0.5/AW-6060

3.3206

Specifications

Tolerances

Tolerances (mm)

AD min	67.700	AD max	68.300
ID min	63.000	ID max	63.250

available

assemble

Cylinder tubes, welded, PZ, E355

68.00 x 4.00 mm (ID: 60 mm)

6.313 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	67.700	AD max	68.300
ID min	60.000	ID max	60.100

available

assemble

Hard chromium plated steel bars,20MnV6

69.85 mm (2 3/4")

29.950 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	69.790	AD max	69.820

available

assemble

Cold drawn cylinder tubes, honed/roller

70.00 x 5.00 mm (ID: 60 mm)

8.015 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	69.700	AD max	70.300
ID min	60.000	ID max	60.062

available

assemble

Cold drawn cylinder tubes, honed/roller

70.00 x 7.50 mm (ID: 55 mm)

11.560 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	69.700	AD max	70.300
ID min	55.000	ID max	55.062

available

assemble

Cold drawn cylinder tubes, honed/roller

70.00 x 10.00 mm (ID: 50 mm)

14.797 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	69.700	AD max	70.300
ID min	50.000	ID max	50.062

available

assemble

Outside chromium plated steel tubes

70.00 x 10.00 mm

14.800 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	69.940	AD max	69.970

available

assemble

Hard chromium plated steel bars, CK 45

70.00 mm

30.210 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	69.940	AD max	69.970

available

assemble

Hard chromium pl. steel bars, 42CrMo(S)4+QT

70.00 mm

30.210 Kg / m

42CrMo(S)4

1.7225/1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	69.940	AD max	69.970

available

assemble

Nickel and chromium plated steel bars

70.00 mm

30.210 Kg / m

20MnV6

Specifications

Tolerances

Tolerances (mm)

AD min	69.940	AD max	69.970

available

assemble

Hard chromium plated piston rods, induction hardened, 42CrMo

70.00 mm

30.210 Kg / m

42CrMo(S)4

1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	69.940	AD max	69.970

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

70.00 mm

30.210 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	69.940	AD max	69.970

available

assemble

Hard chromium plated steel bars,20MnV6

70.00 mm

30.210 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	69.940	AD max	69.970

available

assemble

Cold drawn cylinder tubes, honed/roller

73.00 x 5.00 mm (ID: 63 mm)

8.285 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	72.700	AD max	73.300
ID min	63.000	ID max	63.062

available

assemble

Cylinder tubes, welded, PZ, E355

75.00 x 2.50 mm (ID: 70 mm)

4.470 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	74.650	AD max	75.350
ID min	70.000	ID max	70.120

available

assemble

Cold drawn cylinder tubes, honed/roller

75.00 x 5.00 mm (ID: 65 mm)

8.632 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	74.650	AD max	75.350
ID min	65.000	ID max	65.074

available

assemble

Cold drawn cylinder tubes, honed/roller

75.00 x 6.00 mm (ID: 63 mm)

10.210 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	74.650	AD max	75.350
ID min	63.000	ID max	63.062

available

assemble

Cold drawn cylinder tubes, honed/roller

75.00 x 7.50 mm (ID: 60 mm)

12.485 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	74.650	AD max	75.350
ID min	60.000	ID max	60.062

available

assemble

Cold drawn cylinder tubes, honed/roller

75.00 x 12.50 mm (ID: 50 mm)

19.267 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	74.650	AD max	75.350
ID min	50.000	ID max	50.062

available

assemble

Hard chromium plated piston rods, induction hardened, 42CrMo

75.00 mm

34.700 Kg / m

42CrMo(S)4

1.7227

Specifications

Tolerances

Tolerances (mm)

AD min	74.940	AD max	74.970

available

assemble

Hard chromium plated piston rods, induction hardened, C45 f7

75.00 mm

34.700 Kg / m

CK45

1.1191

Specifications

Tolerances

Tolerances (mm)

AD min	74.940	AD max	74.970

available

assemble

Hard chromium plated steel bars,20MnV6

75.00 mm

34.700 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	74.940	AD max	74.970

available

assemble

Hard chromium plated steel bars,20MnV6

76.20 mm

35.890 Kg / m

20MnV6

1.5217

Specifications

Tolerances

Tolerances (mm)

AD min	76.140	AD max	76.170

available

assemble

Cold drawn cylinder tubes, honed/roller

78.00 x 7.50 mm (ID: 63 mm)

13.040 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	77.650	AD max	78.350
ID min	63.000	ID max	63.062

available

assemble

Cold drawn cylinder tubes, honed/roller

80.00 x 5.00 mm (ID: 70 mm)

9.248 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	79.650	AD max	80.350
ID min	70.000	ID max	70.074

available

assemble

Cylinder tubes, welded, PZ, E355

80.00 x 5.00 mm (ID: 70 mm)

9.248 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	79.650	AD max	80.350
ID min	70.000	ID max	70.120

available

assemble

Outside chromium plated steel tubes

80.00 x 5.00 mm

9.248 Kg / m

E355

1.0580

Specifications

Tolerances

Tolerances (mm)

AD min	79.940	AD max	79.970

available

assemble